Resultados: 28
#1
au:Santos, João P. de O.
Filtros
Ordenar por
Página
de 2
Próxima
1.
Ecophysiological aspects and biomass production of soybean genotypes under soil flooding stress conditions
Facebook Twitter
Facebook Twitter
- Outras redes sociais
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Outras redes
- Métricas
Silva, Silvana F. da
; Martins, Marcio de O.
; Chagas, Paulo V. A. das
; Santos, Gisele L. dos
; Barros Júnior, Aurélio P.
; Silveira, Lindomar M. da
; Ribeiro, João E. da S.
.
Revista Brasileira de Engenharia Agrícola e Ambiental
- Métricas do periódico
ABSTRACT The objective of this study was to evaluate the ecophysiological aspects and biomass production of three soybean genotypes subjected to soil flooding in the vegetative and/or reproductive stages. The design adopted was completely randomized with 5 replications, in a 3 x 3 factorial arrangement, with three soybean genotypes: PELBR 17-46, PELBR 15-7016, and 75I77RSF IPRO; and three water treatment conditions: soil flooding for 10 days in the vegetative period + 10 days in the reproductive period; soil flooding for 10 days only in the reproductive period, and the control treatment, where the soil was maintained at 70% of field capacity. There was a reduction in the relative water content for the PELBR 15-7016 and PELBR 17-46 genotypes in the vegetative/reproductive stages and in the reproductive stage, while for the 75I77RSF IPRO there was no difference. The levels of chlorophyll a, chlorophyll b, and total chlorophyll were reduced only for the PELBR 15-7016 and 75I77RSF IPRO genotypes. The dry matter in the leaves and roots was lower for PELBR 17-46 and PELBR 15-7016 when subjected to stress in the R2 soybean stage and for the grain production. PELBR 17-46 and PELBR 15-7016 genotypes are more susceptible to stress, while the 75I77RSF IPRO showed mechanisms to overcome waterlogging stress. andor or replications arrangement 1746, 1746 17 46, 46 157016, 157016 15 7016, 7016 IRSF I RSF conditions 1 70 capacity 15-701 17-4 vegetativereproductive difference b R 174 4 15701 701 7 15-70 17- 1570 15-7 157 15-
RESUMO O objetivo deste trabalho foi avaliar aspectos ecofisiológicos e produção de biomassa de genótipos de soja submetidos ao alagamento do solo nas fases vegetativa e/ou reprodutiva. O delineamento adotado foi o inteiramente casualizado com 5 repetições, em arranjo fatorial 3 x 3, com três genótipos de soja: PELBR 17-46, PELBR 15-7016 e 75I77RSF IPRO; e três condições de tratamento de água: alagamento do solo por 10 dias no período vegetativo + 10 dias no período reprodutivo; alagamento do solo por 10 dias apenas no período reprodutivo, e o tratamento testemunha, onde o solo foi mantido a 70% da capacidade de campo. Houve redução no teor relativo de água para os genótipos PELBR 15-7016 e PELBR 17-46 no vegetativo/reprodutivo e no reprodutivo, enquanto para 75I77RSF IPRO não houve diferença. Os teores de clorofila a, b e total foram reduzidos apenas para os genótipos PELBR 15-7016 e 75I77RSF IPRO. A matéria seca nas folhas e raízes foram menores para PELBR 17-46 e sensíveis quando submetidos ao estresse no estádio R2 da soja e para a produção de grãos. Os genótipos PELBR 17-46 e PELBR 15-7016 são mais suscetíveis ao estresse, enquanto o 75I77RSF IPRO apresentou mecanismos para superar o estresse por encharcamento. eou ou reprodutiva repetições 1746, 1746 17 46, 46 157016 15 7016 15-701 IRSF I RSF 1 reprodutivo testemunha 70 campo 17-4 vegetativoreprodutivo diferença R grãos encharcamento 174 4 15701 701 15-70 7 17- 1570 15-7 157 15-
2.
Salicylic acid reduces harmful effects of salt stress in Tropaeolum majus
Facebook Twitter
Facebook Twitter
- Outras redes sociais
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Outras redes
- Métricas
Silva, João H. B. da
; Silva, Adjair J. da
; Silva, Toshik I. da
; Henschel, Juliane M.
; Lopes, Adriano S.
; Alves, Júlio C. G.
; Silva, Ramon F. da
; Araújo, Daniele B.
; Santos, João P. de O.
; Martins, Arthur H. P. da C.
; Nascimento, Marlene P. do
; Leal, Márcia P. da S.
; Rego, Mailson M. do
; Dias, Thiago J.
.
Revista Brasileira de Engenharia Agrícola e Ambiental
- Métricas do periódico
ABSTRACT Salt stress hampers the growth and physiology of nasturtium (Tropaeolum majus), due to biochemical, physiological, and anatomical disruptions. The application of salicylic acid stands as an alternative to alleviate the detrimental effects of salt stress, but studies on nasturtium are scarce. Thus, the aim of present study was to assess the effects of foliar application of salicylic acid on nasturtium cultivated under salt stress. The experiment followed a completely randomized design in a 3 x 3 factorial scheme, with 0 (no stress), 50 (moderate salt stress), and 100 (severe salt stress) mM of NaCl, and application of 0, 0.5, and 1 mM of salicylic acid, each with six replications. Growth (plant height, stem diameter, and number of leaves), gas exchange (stomatal conductance, photosynthesis, transpiration, internal CO2 concentration, intrinsic water use efficiency, instantaneous water use efficiency, and intrinsic carboxylation efficiency), as well as chlorophyll indices and chlorophyll a fluorescence were evaluated. Salt stress affected the variables analyzed in this study. The application of salicylic acid had a positive effect on mitigating the effects of severe salt stress, resulting in a significant increase in the number of leaves. The most effective dose was 1 mM, also leading to notable improvements in water use efficiency and photochemical efficiency. However, other combinations of salinity and salicylic acid reduced growth and gas exchange in nasturtium plants. Tropaeolum majus, majus , majus) biochemical physiological disruptions scarce Thus scheme no 5 moderate 10 NaCl 05 0.5 replications plant height diameter leaves, leaves leaves) stomatal conductance photosynthesis transpiration CO concentration efficiency) evaluated However plants 0.
RESUMO O estresse salino limita o crescimento e a fisiologia da capuchinha (Tropaeolum majus), devido a distúrbios bioquímicos, fisiológicos e anatômicos. A aplicação de ácido salicílico é uma alternativa para mitigar os efeitos prejudiciais do estresse salino, no entanto, em capuchinha os estudos são escassos. Assim, objetivou-se avaliar os efeitos da aplicação de ácido salicílico via foliar em capuchinha cultivada sob estresse salino. O experimento foi realizado em delineamento inteiramente casualizado, em esquema fatorial 3 x 3, referente a 0 (sem estresse) 50 (estresse salino moderado) e 100 (estresse salino severo) mM de NaCl e aplicação de 0, 0,5 e 1 mM de ácido salicílico, com seis repetições. O crescimento (altura de planta, diâmetro do caule e número de folhas), trocas gasosas (condutância estomática, fotossíntese, transpiração, concentração interna de CO2, eficiência intrínseca do uso da água, eficiência instantânea do uso da água e eficiência intrínseca de carboxilação) e os índices de clorofila e fluorescência da clorofila a foram avaliados. O estresse salino afetou as variáveis analisadas neste estudo. A aplicação de ácido salicílico teve um efeito positivo na mitigação dos efeitos do estresse salino severo, resultando em um aumento significativo no número de folhas, sendo a dose mais eficaz a concentração de 1 mM, levando ainda, a melhorias notáveis na eficiência no uso da água e na eficiência fotoquímica. No entanto, as demais combinações de salinidade e ácido salicílico reduziram o crescimento e as trocas gasosas nas plantas de capuchinha. Tropaeolum majus, majus , majus) bioquímicos anatômicos entanto escassos Assim objetivouse objetivou se casualizado sem 5 moderado 10 severo 05 repetições altura planta folhas folhas) condutância estomática fotossíntese transpiração CO2 CO carboxilação avaliados estudo ainda fotoquímica
3.
Gas exchanges and chlorophyll fluorescence of soybean genotypes subjected to flooding stress
Facebook Twitter
Facebook Twitter
- Outras redes sociais
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Outras redes
- Métricas
Silva, Silvana F. da
; Martins, Marcio de O.
; Chagas, Paulo V. A. das
; Santos, Gisele L. dos
; Coêlho, Ester dos S.
; Barros Júnior, Aurélio P.
; Silveira, Lindomar M. da
; Ribeiro, João E. da S.
.
ABSTRACT The objective of this work was to evaluate the ecophysiological responses of soybean subjected to soil flooding. The experiment was conducted in a completely randomized design with five replications. A 3 x 3 factorial scheme was used, consisting of three soybean genotypes (tolerant, sensitive and a commercial cultivar), and three water conditions (control treatment - soil was maintained at 70% of field capacity throughout the plant cycle; soil flooding for 10 days in the vegetative period + 10 days in the reproductive period; and soil flooding for 10 days only in the reproductive period). Three evaluations were carried out regarding chlorophyll fluorescence and gas exchange: after flooding in the vegetative period (V2); after flooding in the reproductive period (R2), and ten days after draining the water. Tolerant genotypes and sensitive genotypes experienced reductions in photosynthetic rate and stomatal conductance when subjected to water stress in the reproductive stage. However, under stress in the vegetative stage, only the tolerant and sensitive genotypes reduced the actual quantum efficiency and electron transport rate, and at the moment of flooding in the reproductive stage, all had changes and did not show recovery for these variables. As for non-photochemical quenching, only the sensitive genotype increased the rate, under stress in stages V2/R2 and R2. The local commercial cultivar is more adapted to soil flooding conditions, as it shows better physiological responses to adapt to soil flooding conditions. replications used tolerant, (tolerant cultivar, , cultivar) control 70 cycle 1 period. . period) exchange V2 V (V2) R2, R2 R (R2) stage However variables nonphotochemical non photochemical quenching V2R2 VR V2/R 7 (V2 (R2 V2R (V (R
RESUMO O objetivo deste trabalho foi avaliar as respostas ecofisiológicas de soja submetida ao alagamento do solo. O experimento foi conduzido em delineamento inteiramente casualizado com cinco repetições. Foi utilizado um esquema fatorial 3 x 3, composto por três genótipos de soja (tolerante, sensível e uma cultivar comercial); e três condições hídricas (tratamento controle - solo foi mantido a 70% da capacidade de campo 11 durante todo o ciclo da planta; alagamento do solo por 10 dias no período vegetativo + 10 dias no 12º período reprodutivo; e alagamento do solo por 10 dias apenas no período reprodutivo período. Foram realizadas três avaliações quanto à fluorescência da clorofila a trocas gasosas: após a inundação do período vegetativo (V2); após o alagamento do período reprodutivo (R2), e dez dias após a drenagem da água. Os genótipos tolerantes e sensíveis sofreram redução na taxa fotossintética e na condutância estomática quando submetidos ao estresse hídrico na fase reprodutiva. Porém, sob estresse na fase vegetativa, apenas os genótipos tolerantes e sensíveis reduziram a eficiência quântica atual e a taxa de transporte de elétrons, e no momento do alagamento na fase reprodutiva, todos sofreram alterações e não apresentaram recuperação para essas variáveis. Quanto à quenching não fotoquímico, apenas a sensitiva aumentou a taxa, nas tensões nos estágios V2/R2 e R2. A cultivar comercial local é mais adaptada às condições de alagamento do solo, pois apresenta melhores respostas fisiológicas de adaptação às condições de alagamento do solo. repetições tolerante, tolerante (tolerante comercial) tratamento 70 1 planta º gasosas V2 V (V2) R2, R2 R , (R2) água reprodutiva Porém vegetativa elétrons variáveis fotoquímico V2R2 VR V2/R 7 (V2 (R2 V2R (V (R
4.
Catálogo Taxonômico da Fauna do Brasil: Setting the baseline knowledge on the animal diversity in Brazil Brasil
Facebook Twitter
Facebook Twitter
- Outras redes sociais
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Outras redes
- Métricas
Boeger, Walter A.
; Valim, Michel P.
; Zaher, Hussam
; Rafael, José A.
; Forzza, Rafaela C.
; Percequillo, Alexandre R.
; Serejo, Cristiana S.
; Garraffoni, André R.S.
; Santos, Adalberto J.
; Slipinski, Adam
; Linzmeier, Adelita M.
; Calor, Adolfo R.
; Garda, Adrian A.
; Kury, Adriano B.
; Fernandes, Agatha C.S.
; Agudo-Padrón, Aisur I.
; Akama, Alberto
; Silva Neto, Alberto M. da
; Burbano, Alejandro L.
; Menezes, Aleksandra
; Pereira-Colavite, Alessandre
; Anichtchenko, Alexander
; Lees, Alexander C.
; Bezerra, Alexandra M.R.
; Domahovski, Alexandre C.
; Pimenta, Alexandre D.
; Aleixo, Alexandre L.P.
; Marceniuk, Alexandre P.
; Paula, Alexandre S. de
; Somavilla, Alexandre
; Specht, Alexandre
; Camargo, Alexssandro
; Newton, Alfred F.
; Silva, Aline A.S. da
; Santos, Aline B. dos
; Tassi, Aline D.
; Aragão, Allan C.
; Santos, Allan P.M.
; Migotto, Alvaro E.
; Mendes, Amanda C.
; Cunha, Amanda
; Chagas Júnior, Amazonas
; Sousa, Ana A.T. de
; Pavan, Ana C.
; Almeida, Ana C.S.
; Peronti, Ana L.B.G.
; Henriques-Oliveira, Ana L.
; Prudente, Ana L.
; Tourinho, Ana L.
; Pes, Ana M.O.
; Carmignotto, Ana P.
; Wengrat, Ana P.G. da Silva
; Dornellas, Ana P.S.
; Molin, Anamaria Dal
; Puker, Anderson
; Morandini, André C.
; Ferreira, André da S.
; Martins, André L.
; Esteves, André M.
; Fernandes, André S.
; Roza, André S.
; Köhler, Andreas
; Paladini, Andressa
; Andrade, Andrey J. de
; Pinto, Ângelo P.
; Salles, Anna C. de A.
; Gondim, Anne I.
; Amaral, Antonia C.Z.
; Rondón, Antonio A.A.
; Brescovit, Antonio
; Lofego, Antônio C.
; Marques, Antonio C.
; Macedo, Antonio
; Andriolo, Artur
; Henriques, Augusto L.
; Ferreira Júnior, Augusto L.
; Lima, Aurino F. de
; Barros, Ávyla R. de A.
; Brito, Ayrton do R.
; Romera, Bárbara L.V.
; Vasconcelos, Beatriz M.C. de
; Frable, Benjamin W.
; Santos, Bernardo F.
; Ferraz, Bernardo R.
; Rosa, Brunno B.
; Sampaio, Brunno H.L.
; Bellini, Bruno C.
; Clarkson, Bruno
; Oliveira, Bruno G. de
; Corrêa, Caio C.D.
; Martins, Caleb C.
; Castro-Guedes, Camila F. de
; Souto, Camilla
; Bicho, Carla de L.
; Cunha, Carlo M.
; Barboza, Carlos A. de M.
; Lucena, Carlos A.S. de
; Barreto, Carlos
; Santana, Carlos D.C.M. de
; Agne, Carlos E.Q.
; Mielke, Carlos G.C.
; Caetano, Carlos H.S.
; Flechtmann, Carlos H.W.
; Lamas, Carlos J.E.
; Rocha, Carlos
; Mascarenhas, Carolina S.
; Margaría, Cecilia B.
; Waichert, Cecilia
; Digiani, Celina
; Haddad, Célio F.B.
; Azevedo, Celso O.
; Benetti, Cesar J.
; Santos, Charles M.D. dos
; Bartlett, Charles R.
; Bonvicino, Cibele
; Ribeiro-Costa, Cibele S.
; Santos, Cinthya S.G.
; Justino, Cíntia E.L.
; Canedo, Clarissa
; Bonecker, Claudia C.
; Santos, Cláudia P.
; Carvalho, Claudio J.B. de
; Gonçalves, Clayton C.
; Galvão, Cleber
; Costa, Cleide
; Oliveira, Cléo D.C. de
; Schwertner, Cristiano F.
; Andrade, Cristiano L.
; Pereira, Cristiano M.
; Sampaio, Cristiano
; Dias, Cristina de O.
; Lucena, Daercio A. de A.
; Manfio, Daiara
; Amorim, Dalton de S.
; Queiroz, Dalva L. de
; Queiroz, Dalva L. de
; Colpani, Daniara
; Abbate, Daniel
; Aquino, Daniel A.
; Burckhardt, Daniel
; Cavallari, Daniel C.
; Prado, Daniel de C. Schelesky
; Praciano, Daniel L.
; Basílio, Daniel S.
; Bená, Daniela de C.
; Toledo, Daniela G.P. de
; Takiya, Daniela M.
; Fernandes, Daniell R.R.
; Ament, Danilo C.
; Cordeiro, Danilo P.
; Silva, Darliane E.
; Pollock, Darren A.
; Muniz, David B.
; Gibson, David I.
; Nogueira, David S.
; Marques, Dayse W.A.
; Lucatelli, Débora
; Garcia, Deivys M.A.
; Baêta, Délio
; Ferreira, Denise N.M.
; Rueda-Ramírez, Diana
; Fachin, Diego A.
; Souza, Diego de S.
; Rodrigues, Diego F.
; Pádua, Diego G. de
; Barbosa, Diego N.
; Dolibaina, Diego R.
; Amaral, Diogo C.
; Chandler, Donald S.
; Maccagnan, Douglas H.B.
; Caron, Edilson
; Carvalho, Edrielly
; Adriano, Edson A.
; Abreu Júnior, Edson F. de
; Pereira, Edson H.L.
; Viegas, Eduarda F.G.
; Carneiro, Eduardo
; Colley, Eduardo
; Eizirik, Eduardo
; Santos, Eduardo F. dos
; Shimbori, Eduardo M.
; Suárez-Morales, Eduardo
; Arruda, Eliane P. de
; Chiquito, Elisandra A.
; Lima, Élison F.B.
; Castro, Elizeu B. de
; Orlandin, Elton
; Nascimento, Elynton A. do
; Razzolini, Emanuel
; Gama, Emanuel R.R.
; Araujo, Enilma M. de
; Nishiyama, Eric Y.
; Spiessberger, Erich L.
; Santos, Érika C.L. dos
; Contreras, Eugenia F.
; Galati, Eunice A.B.
; Oliveira Junior, Evaldo C. de
; Gallardo, Fabiana
; Hernandes, Fabio A.
; Lansac-Tôha, Fábio A.
; Pitombo, Fabio B.
; Dario, Fabio Di
; Santos, Fábio L. dos
; Mauro, Fabio
; Nascimento, Fabio O. do
; Olmos, Fabio
; Amaral, Fabio R.
; Schunck, Fabio
; Godoi, Fábio S. P. de
; Machado, Fabrizio M.
; Barbo, Fausto E.
; Agrain, Federico A.
; Ribeiro, Felipe B.
; Moreira, Felipe F.F.
; Barbosa, Felipe F.
; Silva, Fenanda S.
; Cavalcanti, Fernanda F.
; Straube, Fernando C.
; Carbayo, Fernando
; Carvalho Filho, Fernando
; Zanella, Fernando C.V.
; Jacinavicius, Fernando de C.
; Farache, Fernando H.A.
; Leivas, Fernando
; Dias, Fernando M.S.
; Mantellato, Fernando
; Vaz-de-Mello, Fernando Z.
; Gudin, Filipe M.
; Albuquerque, Flávio
; Molina, Flavio B.
; Passos, Flávio D.
; Shockley, Floyd W.
; Pinheiro, Francielly F.
; Mello, Francisco de A.G. de
; Nascimento, Francisco E. de L.
; Franco, Francisco L.
; Oliveira, Francisco L. de
; Melo, Francisco T. de V.
; Quijano, Freddy R.B.
; Salles, Frederico F.
; Biffi, Gabriel
; Queiroz, Gabriel C.
; Bizarro, Gabriel L.
; Hrycyna, Gabriela
; Leviski, Gabriela
; Powell, Gareth S.
; Santos, Geane B. dos
; Morse, Geoffrey E.
; Brown, George
; Mattox, George M.T.
; Zimbrão, Geraldo
; Carvalho, Gervásio S.
; Miranda, Gil F.G.
; Moraes, Gilberto J. de
; Lourido, Gilcélia M.
; Neves, Gilmar P.
; Moreira, Gilson R.P.
; Montingelli, Giovanna G.
; Maurício, Giovanni N.
; Marconato, Gláucia
; Lopez, Guilherme E.L.
; Silva, Guilherme L. da
; Muricy, Guilherme
; Brito, Guilherme R.R.
; Garbino, Guilherme S.T.
; Flores, Gustavo E.
; Graciolli, Gustavo
; Libardi, Gustavo S.
; Proctor, Heather C.
; Gil-Santana, Helcio R.
; Varella, Henrique R.
; Escalona, Hermes E.
; Schmitz, Hermes J.
; Rodrigues, Higor D.D.
; Galvão Filho, Hilton de C.
; Quintino, Hingrid Y.S.
; Pinto, Hudson A.
; Rainho, Hugo L.
; Miyahira, Igor C.
; Gonçalves, Igor de S.
; Martins, Inês X.
; Cardoso, Irene A.
; Oliveira, Ismael B. de
; Franz, Ismael
; Fernandes, Itanna O.
; Golfetti, Ivan F.
; S. Campos-Filho, Ivanklin
; Oliveira, Ivo de S.
; Delabie, Jacques H.C.
; Oliveira, Jader de
; Prando, Jadila S.
; Patton, James L.
; Bitencourt, Jamille de A.
; Silva, Janaina M.
; Santos, Jandir C.
; Arruda, Janine O.
; Valderrama, Jefferson S.
; Dalapicolla, Jeronymo
; Oliveira, Jéssica P.
; Hájek, Jiri
; Morselli, João P.
; Narita, João P.
; Martin, João P.I.
; Grazia, Jocélia
; McHugh, Joe
; Cherem, Jorge J.
; Farias Júnior, José A.S.
; Fernandes, Jose A.M.
; Pacheco, José F.
; Birindelli, José L.O.
; Rezende, José M.
; Avendaño, Jose M.
; Duarte, José M. Barbanti
; Ribeiro, José R. Inácio
; Mermudes, José R.M.
; Pujol-Luz, José R.
; Santos, Josenilson R. dos
; Câmara, Josenir T.
; Teixeira, Joyce A.
; Prado, Joyce R. do
; Botero, Juan P.
; Almeida, Julia C.
; Kohler, Julia
; Gonçalves, Julia P.
; Beneti, Julia S.
; Donahue, Julian P.
; Alvim, Juliana
; Almeida, Juliana C.
; Segadilha, Juliana L.
; Wingert, Juliana M.
; Barbosa, Julianna F.
; Ferrer, Juliano
; Santos, Juliano F. dos
; Kuabara, Kamila M.D.
; Nascimento, Karine B.
; Schoeninger, Karine
; Campião, Karla M.
; Soares, Karla
; Zilch, Kássia
; Barão, Kim R.
; Teixeira, Larissa
; Sousa, Laura D. do N.M. de
; Dumas, Leandro L.
; Vieira, Leandro M.
; Azevedo, Leonardo H.G.
; Carvalho, Leonardo S.
; Souza, Leonardo S. de
; Rocha, Leonardo S.G.
; Bernardi, Leopoldo F.O.
; Vieira, Letícia M.
; Johann, Liana
; Salvatierra, Lidianne
; Oliveira, Livia de M.
; Loureiro, Lourdes M.A. El-moor
; Barreto, Luana B.
; Barros, Luana M.
; Lecci, Lucas
; Camargos, Lucas M. de
; Lima, Lucas R.C.
; Almeida, Lucia M.
; Martins, Luciana R.
; Marinoni, Luciane
; Moura, Luciano de A.
; Lima, Luciano
; Naka, Luciano N.
; Miranda, Lucília S.
; Salik, Lucy M.
; Bezerra, Luis E.A.
; Silveira, Luis F.
; Campos, Luiz A.
; Castro, Luiz A.S. de
; Pinho, Luiz C.
; Silveira, Luiz F.L.
; Iniesta, Luiz F.M.
; Tencatt, Luiz F.C.
; Simone, Luiz R.L.
; Malabarba, Luiz R.
; Cruz, Luiza S. da
; Sekerka, Lukas
; Barros, Lurdiana D.
; Santos, Luziany Q.
; Skoracki, Maciej
; Correia, Maira A.
; Uchoa, Manoel A.
; Andrade, Manuella F.G.
; Hermes, Marcel G.
; Miranda, Marcel S.
; Araújo, Marcel S. de
; Monné, Marcela L.
; Labruna, Marcelo B.
; Santis, Marcelo D. de
; Duarte, Marcelo
; Knoff, Marcelo
; Nogueira, Marcelo
; Britto, Marcelo R. de
; Melo, Marcelo R.S. de
; Carvalho, Marcelo R. de
; Tavares, Marcelo T.
; Kitahara, Marcelo V.
; Justo, Marcia C.N.
; Botelho, Marcia J.C.
; Couri, Márcia S.
; Borges-Martins, Márcio
; Felix, Márcio
; Oliveira, Marcio L. de
; Bologna, Marco A.
; Gottschalk, Marco S.
; Tavares, Marcos D.S.
; Lhano, Marcos G.
; Bevilaqua, Marcus
; Santos, Marcus T.T.
; Domingues, Marcus V.
; Sallum, Maria A.M.
; Digiani, María C.
; Santarém, Maria C.A.
; Nascimento, Maria C. do
; Becerril, María de los A.M.
; Santos, Maria E.A. dos
; Passos, Maria I. da S. dos
; Felippe-Bauer, Maria L.
; Cherman, Mariana A.
; Terossi, Mariana
; Bartz, Marie L.C.
; Barbosa, Marina F. de C.
; Loeb, Marina V.
; Cohn-Haft, Mario
; Cupello, Mario
; Martins, Marlúcia B.
; Christofersen, Martin L.
; Bento, Matheus
; Rocha, Matheus dos S.
; Martins, Maurício L.
; Segura, Melissa O.
; Cardenas, Melissa Q.
; Duarte, Mércia E.
; Ivie, Michael A.
; Mincarone, Michael M.
; Borges, Michela
; Monné, Miguel A.
; Casagrande, Mirna M.
; Fernandez, Monica A.
; Piovesan, Mônica
; Menezes, Naércio A.
; Benaim, Natalia P.
; Reategui, Natália S.
; Pedro, Natan C.
; Pecly, Nathalia H.
; Ferreira Júnior, Nelson
; Silva Júnior, Nelson J. da
; Perioto, Nelson W.
; Hamada, Neusa
; Degallier, Nicolas
; Chao, Ning L.
; Ferla, Noeli J.
; Mielke, Olaf H.H.
; Evangelista, Olivia
; Shibatta, Oscar A.
; Oliveira, Otto M.P.
; Albornoz, Pablo C.L.
; Dellapé, Pablo M.
; Gonçalves, Pablo R.
; Shimabukuro, Paloma H.F.
; Grossi, Paschoal
; Rodrigues, Patrícia E. da S.
; Lima, Patricia O.V.
; Velazco, Paul
; Santos, Paula B. dos
; Araújo, Paula B.
; Silva, Paula K.R.
; Riccardi, Paula R.
; Garcia, Paulo C. de A.
; Passos, Paulo G.H.
; Corgosinho, Paulo H.C.
; Lucinda, Paulo
; Costa, Paulo M.S.
; Alves, Paulo P.
; Roth, Paulo R. de O.
; Coelho, Paulo R.S.
; Duarte, Paulo R.M.
; Carvalho, Pedro F. de
; Gnaspini, Pedro
; Souza-Dias, Pedro G.B.
; Linardi, Pedro M.
; Bartholomay, Pedro R.
; Demite, Peterson R.
; Bulirsch, Petr
; Boll, Piter K.
; Pereira, Rachel M.M.
; Silva, Rafael A.P.F.
; Moura, Rafael B. de
; Boldrini, Rafael
; Silva, Rafaela A. da
; Falaschi, Rafaela L.
; Cordeiro, Ralf T.S.
; Mello, Ramon J.C.L.
; Singer, Randal A.
; Querino, Ranyse B.
; Heleodoro, Raphael A.
; Castilho, Raphael de C.
; Constantino, Reginaldo
; Guedes, Reinaldo C.
; Carrenho, Renan
; Gomes, Renata S.
; Gregorin, Renato
; Machado, Renato J.P.
; Bérnils, Renato S.
; Capellari, Renato S.
; Silva, Ricardo B.
; Kawada, Ricardo
; Dias, Ricardo M.
; Siewert, Ricardo
; Brugnera, Ricaro
; Leschen, Richard A.B.
; Constantin, Robert
; Robbins, Robert
; Pinto, Roberta R.
; Reis, Roberto E. dos
; Ramos, Robson T. da C.
; Cavichioli, Rodney R.
; Barros, Rodolfo C. de
; Caires, Rodrigo A.
; Salvador, Rodrigo B.
; Marques, Rodrigo C.
; Araújo, Rodrigo C.
; Araujo, Rodrigo de O.
; Dios, Rodrigo de V.P.
; Johnsson, Rodrigo
; Feitosa, Rodrigo M.
; Hutchings, Roger W.
; Lara, Rogéria I.R.
; Rossi, Rogério V.
; Gerstmeier, Roland
; Ochoa, Ronald
; Hutchings, Rosa S.G.
; Ale-Rocha, Rosaly
; Rocha, Rosana M. da
; Tidon, Rosana
; Brito, Rosangela
; Pellens, Roseli
; Santos, Sabrina R. dos
; Santos, Sandra D. dos
; Paiva, Sandra V.
; Santos, Sandro
; Oliveira, Sarah S. de
; Costa, Sávio C.
; Gardner, Scott L.
; Leal, Sebastián A. Muñoz
; Aloquio, Sergio
; Bonecker, Sergio L.C.
; Bueno, Sergio L. de S.
; Almeida, Sérgio M. de
; Stampar, Sérgio N.
; Andena, Sérgio R.
; Posso, Sergio R.
; Lima, Sheila P.
; Gadelha, Sian de S.
; Thiengo, Silvana C.
; Cohen, Simone C.
; Brandão, Simone N.
; Rosa, Simone P.
; Ribeiro, Síria L.B.
; Letana, Sócrates D.
; Santos, Sonia B. dos
; Andrade, Sonia C.S.
; Dávila, Stephane
; Vaz, Stéphanie
; Peck, Stewart B.
; Christo, Susete W.
; Cunha, Suzan B.Z.
; Gomes, Suzete R.
; Duarte, Tácio
; Madeira-Ott, Taís
; Marques, Taísa
; Roell, Talita
; Lima, Tarcilla C. de
; Sepulveda, Tatiana A.
; Maria, Tatiana F.
; Ruschel, Tatiana P.
; Rodrigues, Thaiana
; Marinho, Thais A.
; Almeida, Thaís M. de
; Miranda, Thaís P.
; Freitas, Thales R.O.
; Pereira, Thalles P.L.
; Zacca, Thamara
; Pacheco, Thaynara L.
; Martins, Thiago F.
; Alvarenga, Thiago M.
; Carvalho, Thiago R. de
; Polizei, Thiago T.S.
; McElrath, Thomas C.
; Henry, Thomas
; Pikart, Tiago G.
; Porto, Tiago J.
; Krolow, Tiago K.
; Carvalho, Tiago P.
; Lotufo, Tito M. da C.
; Caramaschi, Ulisses
; Pinheiro, Ulisses dos S.
; Pardiñas, Ulyses F.J.
; Maia, Valéria C.
; Tavares, Valeria
; Costa, Valmir A.
; Amaral, Vanessa S. do
; Silva, Vera C.
; Wolff, Vera R. dos S.
; Slobodian, Verônica
; Silva, Vinícius B. da
; Espíndola, Vinicius C.
; Costa-Silva, Vinicius da
; Bertaco, Vinicius de A.
; Padula, Vinícius
; Ferreira, Vinicius S.
; Silva, Vitor C.P. da
; Piacentini, Vítor de Q.
; Sandoval-Gómez, Vivian E.
; Trevine, Vivian
; Sousa, Viviane R.
; Sant’Anna, Vivianne B. de
; Mathis, Wayne N.
; Souza, Wesley de O.
; Colombo, Wesley D.
; Tomaszewska, Wioletta
; Wosiacki, Wolmar B.
; Ovando, Ximena M.C.
; Leite, Yuri L.R.
.
ABSTRACT The limited temporal completeness and taxonomic accuracy of species lists, made available in a traditional manner in scientific publications, has always represented a problem. These lists are invariably limited to a few taxonomic groups and do not represent up-to-date knowledge of all species and classifications. In this context, the Brazilian megadiverse fauna is no exception, and the Catálogo Taxonômico da Fauna do Brasil (CTFB) (http://fauna.jbrj.gov.br/), made public in 2015, represents a database on biodiversity anchored on a list of valid and expertly recognized scientific names of animals in Brazil. The CTFB is updated in near real time by a team of more than 800 specialists. By January 1, 2024, the CTFB compiled 133,691 nominal species, with 125,138 that were considered valid. Most of the valid species were arthropods (82.3%, with more than 102,000 species) and chordates (7.69%, with over 11,000 species). These taxa were followed by a cluster composed of Mollusca (3,567 species), Platyhelminthes (2,292 species), Annelida (1,833 species), and Nematoda (1,447 species). All remaining groups had less than 1,000 species reported in Brazil, with Cnidaria (831 species), Porifera (628 species), Rotifera (606 species), and Bryozoa (520 species) representing those with more than 500 species. Analysis of the CTFB database can facilitate and direct efforts towards the discovery of new species in Brazil, but it is also fundamental in providing the best available list of valid nominal species to users, including those in science, health, conservation efforts, and any initiative involving animals. The importance of the CTFB is evidenced by the elevated number of citations in the scientific literature in diverse areas of biology, law, anthropology, education, forensic science, and veterinary science, among others. publications problem uptodate up date classifications context exception (CTFB http//fauna.jbrj.gov.br/, httpfaunajbrjgovbr http //fauna.jbrj.gov.br/ , jbrj gov br (http://fauna.jbrj.gov.br/) 2015 Brazil 80 specialists 1 2024 133691 133 691 133,69 125138 125 138 125,13 82.3%, 823 82 3 (82.3% 102000 102 000 102,00 7.69%, 769 7 69 (7.69% 11000 11 11,00 . 3,567 3567 567 (3,56 2,292 2292 2 292 (2,29 1,833 1833 833 (1,83 1,447 1447 447 (1,44 1000 1,00 831 (83 628 (62 606 (60 520 (52 50 users science health biology law anthropology education others http//fauna.jbrj.gov.br/ faunajbrjgovbr //fauna.jbrj.gov.br (http://fauna.jbrj.gov.br/ 201 8 202 13369 13 133,6 12513 12 125,1 82.3% (82.3 10200 10 00 102,0 7.69% 76 6 (7.69 1100 11,0 3,56 356 56 (3,5 2,29 229 29 (2,2 1,83 183 83 (1,8 1,44 144 44 (1,4 100 1,0 (8 62 (6 60 52 (5 5 http//fauna.jbrj.gov.br (http://fauna.jbrj.gov.br 20 1336 133, 1251 125, 82.3 (82. 1020 0 102, 7.69 (7.6 110 11, 3,5 35 (3, 2,2 22 (2, 1,8 18 (1, 1,4 14 4 ( 82. (82 7.6 (7. 3, (3 2, (2 (1 7. (7
5.
Economic indicators for cowpea cultivation under different irrigation depths
Facebook Twitter
Facebook Twitter
- Outras redes sociais
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Outras redes
- Métricas
Carvalho, Erika de O. T. de
; Costa, Deborah L. P.
; Luz, Denilson B. da
; Rua, Matheus L.
; Velame, Maria de L. A.
; Monteiro, Adrielle C.
; Vieira, Igor C. de O.
; Pinto, João V. de N.
; Fernandes, Gabriel S. T.
; Nunes, Hildo G. G. C.
; Souza, Paulo J. de O. P. de
; Santos, Marcos A. S. dos
.
Revista Brasileira de Engenharia Agrícola e Ambiental
- Métricas do periódico
ABSTRACT Cowpeas are of high socioeconomic importance in the North and Northeast regions of Brazil, whereby the search for alternatives that offer increased productivity with financial returns has become an important challenge. Thus, the objective of this study was to estimate and evaluate the economic indicators of cowpea production in 2015 and 2016 when applying drip irrigation to different depths. Irrigation treatments were based on crop evapotranspiration (ETc). The experiment was laid in a randomized complete blocks design with four treatments (0, 25, 50, and 100% ETc) and six replications. For economic analysis, the results were extrapolated to an area of one hectare. Productivity in 2015 was lower than that in 2016; however, in all treatments, it was always higher when plants were grown under adequate water supply. In both years, the total operating costs were higher under irrigation than under rainfed conditions. The 100% ETc treatment resulted in a greater number of cowpea bags (60 kg) produced and a higher gross revenue than the rainfed treatment by 17 bags ha-1, equivalent to 1,020 kg ha-1 (gross revenue US$ 711.48) and 16 bags ha-1, equivalent to 960 kg ha-1 (gross revenue US$ 867.12), in 2015 and 2016, respectively. Water deficit limited cowpea yield in both years but made cultivation economically unfeasible only in 2015. Brazil challenge Thus 201 depths ETc. . (ETc) 0, 0 (0 25 50 100 replications analysis hectare however supply conditions 60 (6 1 ha1, ha1 ha 1, 1020 020 1,02 ha- US 711.48 71148 711 48 96 867.12, 86712 867.12 , 867 12 867.12) respectively 20 (ETc ( 2 5 10 6 102 02 1,0 711.4 7114 71 4 9 8671 867.1 86 711. 7 867. 8
RESUMO O feijão-caupi apresenta grande importância socioeconômica nas regiões Norte e Nordeste do Brasil, sendo que a busca por alternativas que ofereçam aumento de produtividade com retorno financeiro tem se tornado um importante desafio. Assim, o objetivo deste trabalho foi estimar e avaliar os indicadores econômicos da produção de feijão-caupi nos anos de 2015 e 2016 quando da aplicação de irrigação por gotejamento em diferentes lâminas. Os tratamentos de irrigação foram baseados na evapotranspiração da cultura (ETc). O experimento foi instalado em blocos ao acaso com quatro tratamentos (0, 25, 50 e 100% da ETc) e seis repetições. Para análise econômica, os resultados foram extrapolados para uma área de um hectare. A produtividade em 2015 foi inferior à de 2016; porém, em todos os tratamentos, a produtividade foi sempre maior quando as plantas foram cultivadas sob irrigação adequada. Em ambos os anos, os custos operacionais totais foram maiores sob irrigação do que sob condições de sequeiro. O tratamento 100% ETc resultou em maior número de sacas de feijão-caupi (60 kg) produzidas e receita bruta superior ao tratamento de sequeiro em 17 sacas ha-1, equivalente a 1.020 kg ha-1 (receita bruta US$ 711,48) e 16 sacas ha-1, equivalente a 960 kg ha-1 (receita bruta US$ 867,12), em 2015 e 2016, respectivamente. A deficiência hídrica limitou a produtividade do feijão-caupi nos dois anos, mas inviabilizou economicamente o cultivo apenas em 2015. feijãocaupi feijão caupi Brasil desafio Assim 201 lâminas ETc. . (ETc) 0, 0 (0 25 5 100 repetições econômica hectare porém adequada 60 (6 1 ha1, ha1 ha 1, 1020 020 1.02 ha- US 711,48 71148 711 48 96 867,12, 86712 867,12 , 867 12 867,12) respectivamente 20 (ETc ( 2 10 6 102 02 1.0 711,4 7114 71 4 9 8671 867,1 86 1. 711, 7 867, 8
6.
Repellent activity of essential oils against mediterranean fly and their effects on postharvest quality in paluma guava
Facebook Twitter
Facebook Twitter
- Outras redes sociais
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Outras redes
- Métricas
Gonzaga, Kennedy S.
; de Brito, Carlos H.
; Salustino, Angélica da S.
; de Souza, Maria Í. A.
; Santos, João P. de O.
; Sousa, Francisco de A. R. da M.
.
ABSTRACT Brazil is one of the world's largest guava (Psidium guajava) producing countries, but the economic performance of this crop can be negatively affected by the damage caused by Ceratitis capitata (Diptera: Tephritidae). The main methods for controlling C. capitata are based on broad-spectrum insecticide applications. However, the negative effects of using this control method stimulate the development of sustainable alternatives, such as the use of essential oils (EO). In this sense, the objective of the present study was to evaluate the repellent activity of EO of citronella (Cymbopogon nardus), clove (Syzygium aromaticum), and copaiba (Copaifera officinalis) for repellency of C. capitata in Paluma guava fruits and determine their effects on postharvest fruit quality, under laboratory-controlled conditions. The fruits were treated with citronella, clove, and copaiba EO and placed in covered plastic containers attached to the ends of arenas of 20 cm diameter and 15 cm height. The fruit physical and chemical analysis was carried out based on the same oils applied in the repellent test. The C. nardus essential oil presented a greater repellency of C. capitata females. The EO applications proved to be a good strategy for maintaining the fruit post-harvest quality. worlds world s Psidium guajava countries Diptera (Diptera Tephritidae. Tephritidae . Tephritidae) C broadspectrum broad spectrum However alternatives EO. (EO) sense Cymbopogon nardus, , nardus) Syzygium aromaticum, aromaticum aromaticum) Copaifera officinalis quality laboratorycontrolled laboratory controlled conditions 2 1 height test females post harvest (EO
RESUMO O Brasil está entre os maiores produtores mundiais de goiaba (Psidium guajava), mas o rendimento econômico dessa cultura pode ser negativamente afetado pelos danos causados por Ceratitis capitata (Diptera: Tephritidae). Os principais métodos de controle de C. capitata são baseados em aplicações de inseticidas de amplo espectro. Porém, os efeitos negativos do uso desse controle estimulam o desenvolvimento de alternativas sustentáveis, como o uso de óleos essenciais. Nesse sentido, o presente estudo teve como objetivo avaliar a atividade repelente dos óleos essenciais de citronela (Cymbopogon nardus), cravo (Syzygium aromaticum) e copaíba (Copaifera officinalis) em fruto de goiabeiras Paluma contra C. capitata e determinar suas influências na qualidade pós-colheita desses frutos trabalhados. Em condições controladas de laboratório, os frutos foram tratados com óleos essenciais de citronela, cravo e copaíba e acondicionados em recipientes de plástico com dimensões de 20 cm de diâmetro e 15 cm de altura. A análise físico-química dos frutos foi realizada com base nos mesmos óleos aplicados no teste de repelência. O óleo essencial de C. nardus apresentou maior repelência às fêmeas de C. capitata. A aplicação de óleos essenciais, mostrou-se uma estratégia para manutenção da qualidade póscolheita. Psidium guajava, guajava , guajava) Diptera (Diptera Tephritidae. Tephritidae . Tephritidae) C espectro Porém sustentáveis sentido Cymbopogon nardus, nardus) Syzygium aromaticum Copaifera officinalis póscolheita pós colheita trabalhados laboratório 2 1 altura físicoquímica físico química mostrouse mostrou se
7.
A Multi-Plasmonic Approach for Simultaneous Measurements based on a D-Shaped Photonic Crystal Fiber Sensor: from Temperature to Optical Dispersion MultiPlasmonic Multi Plasmonic DShaped D Shaped Sensor
Facebook Twitter
Facebook Twitter
- Outras redes sociais
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Outras redes
- Métricas
Romeiro, Amanda F.
; Cardoso, Markos P.
; Silva, Anderson O.
; Costa, João C. W. A.
; Giraldi, M. Thereza R.
; Santos, José L.
; Baptista, José M.
; Guerreiro, Ariel
.
Journal of Microwaves, Optoelectronics and Electromagnetic Applications
- Métricas do periódico
Abstract The growing demand for multiparameter sensors includes compact devices accompanied by simple calibration processes to distinguish the outputs from each other. This paper evaluates a scheme to determine multiple parameters of a medium using localized surface plasmon resonances (SPR) excited on a Dshaped photonic crystal fiber (PCF) partially covered by two gold layers of different thicknesses. We demonstrate that the proposed sensing platform, once customized to characterize the possible dispersive profiles of the refractive index of the analyte, also allows interrogating the temperature of a sample from a linear relationship. Since the plasmonic resonances are excited at separated and low crosstalk spectral channels, different sensing responses can be obtained simultaneously in the same location of the D-shaped PCF. These features turn out the SPR sensor a suitable tool for simultaneous monitoring of optical dispersion and temperature. other (SPR PCF (PCF thicknesses platform analyte relationship channels D shaped
8.
Enhanced Larvicidal Activity of New 1,2,4-Oxadiazoles against Aedes aegypti Mosquitos: QSAR and Docking Studies 1,2,4Oxadiazoles 124Oxadiazoles Oxadiazoles 1,2,4 1 2 4 Mosquitos 4Oxadiazoles 124 1,2, 12 1,2 1,
Facebook Twitter
Facebook Twitter
- Outras redes sociais
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Outras redes
- Métricas
Silva, Aluízio G. da
; Navarro, Daniela Maria A. F.
; Santos, Geanne K. N.
; Aguiar, Júlio César R. O. F. de
; França, Karla A. de
; Tébéka, Iris Raquel M.
; Anjos, Janaína V. dos
; Silva, João Bosco P. da
; Kanis, Luiz A.
; Srivastava, Rajendra M.
; Neves Filho, Ricardo Antônio W.
; Ramos, Mozart N.
.
Journal of the Brazilian Chemical Society
- Métricas do periódico
The worldwide emergence of viral diseases such as Zika, Dengue, Chikungunya, West Nile and Yellow Fever urge the search for solutions to eliminate their common vector, the Aedes aegypti mosquito. This paper describes the quantitative structure-activity relationship (QSAR) and docking studies of a series of nine 3-(3-aryl-1,2,4-oxadiazol-5-yl)propionic acids (AOPA), 1-9, previously published by our group. Additionally, three new 1,2,4-oxadiazoles, 10-12, have also been synthesized, characterized and studied. The QSAR and docking studies of all compounds, 1-12, clearly indicate that larger hydrophobic substituents such as biphenyl groups attached on position 3 in 1,2,4-oxadiazoles improve the larvicidal activity. It is worthwhile to mention that nanocapsulation of compounds 10-12 were necessary to help their dissolution in water and these three new 1,2,4-oxadiazoles also exhibited approximately equal or higher larvicidal activities compared to the former prototypes at stage L4. Zika Dengue Chikungunya vector mosquito structureactivity structure activity (QSAR 33aryl1,2,4oxadiazol5ylpropionic 33aryl124oxadiazol5ylpropionic aryloxadiazolylpropionic aryl 1,2,4 oxadiazol 5 yl propionic 1 2 4 AOPA, AOPA , (AOPA) 19, 19 9, 9 1-9 group Additionally 1,2,4oxadiazoles, 124oxadiazoles oxadiazoles oxadiazoles, 1012, 1012 10 12, 12 synthesized studied 112, 112 1-12 1,2,4oxadiazoles 10-1 L4 L 33aryl1 4oxadiazol5ylpropionic ylpropionic 124 1,2, (AOPA 1- 4oxadiazoles 101 11 1-1 10- 33aryl oxadiazolylpropionic 1,2 1,
9.
Salinity-tolerant dwarf cashew rootstock has better ionic homeostasis and morphophysiological performance of seedlings
Facebook Twitter
Facebook Twitter
- Outras redes sociais
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Outras redes
- Métricas
Sousa, Valéria F. de O.
; Santos, Gisele L. dos
; Maia, Josemir M.
; Maia Júnior, Sebastião de O.
; Santos, João P. de O.
; Costa, José E.
; Silva, Anselmo F. da
; Dias, Thiago J.
; Ferreira-Silva, Sérgio L.
; Taniguchi, Carlos A. K.
.
Revista Brasileira de Engenharia Agrícola e Ambiental
- Métricas do periódico
RESUMO Considerando a relevância do cajueiro e a limitação imposta pelo estresse salino em regiões semiáridas, o uso de alternativas capazes de mitigar os efeitos deletérios em decorrência da salinidade são de grande importância ao setor produtivo. O uso de plantas enxertadas, principalmente com porta-enxertos de materiais tolerantes, influencia no acúmulo de íons tóxicos nas folhas das mudas enxertadas. Assim, o objetivo deste trabalho foi avaliar características morfofisiológicas e concentração foliar de Na+, K+, Ca+2 de combinações de copa e porta-enxerto de cajueiro anão precoce, contrastantes à salinidade. O experimento foi realizado em delineamento inteiramente casualizado, com cinco repetições, tendo os tratamentos dispostos em arranjo fatorial de 4 × 3, correspondentes a quatro combinações de mudas enxertadas (auto-enxerto CCP 09/CCP 09, CCP 09/CCP 76, auto-enxerto CCP 76/CCP 76 e CCP 76/CCP 09) e a três concentrações de NaCl (0-controle, 50 e 100 mM L-1). Foram avaliados altura, número de folhas, área foliar, massa seca, índice de tolerância e concentração foliar de Na+, K+ e Ca+2 após 30 dias da aplicação das concentrações de NaCl. A combinação copa/porta-enxerto CCP 76/09 apresentou tolerância à salinidade de 50 mM L-1, devido ao aumento da área foliar e número de folhas. A combinação copa/porta-enxerto CCP 76/09 foi mais adequada, pois manteve a concentração foliar de K+ e o menor concentração de Na+.
ABSTRACT Considering the cashew tree’s relevance and the limitations imposed by salinity stress in semi-arid regions, the use of alternatives capable of mitigating the harmful effects due to salinity is of great importance to the production sector. The use of grafted plants, especially with rootstock made of tolerant materials, influences the accumulation of toxic ions in leaves of grafted seedlings. Thus, the objective of this work was to evaluate morphophysiological characteristics and leaf concentrations of Na+, K+ and Ca+2 of combinations of scion and rootstock of early dwarf cashew, contrasting in terms of salinity tolerance. The experiment was carried out in a completely randomized design with five replicates, in a 4 × 3 factorial arrangement, corresponding to four dwarf cashew scion/rootstock combinations (self-graft CCP 09, CCP 09/CCP 76, self-graft CCP 76, and CCP 76/CCP 09) and three NaCl concentrations (0, 50, and 100 mM L-1). Height, number of leaves, leaf area, dry matter, tolerance index and leaf concentrations of Na+, K+ and Ca+2 were evaluated after 30 days of application of NaCl concentrations. The scion/rootstock combination CCP 76/09 showed tolerance to 50 mM L-1, due to the increase of leaf area and number of leaves. The scion/rootstock combination CCP 76/09 was more suitable, as it kept the leaf K+ concentration and had the lowest Na+ concentration.
10.
Multidisciplinary Scientific Cruises for Environmental Characterization in the Santos Basin – Methods and Sampling Design
Facebook Twitter
Facebook Twitter
- Outras redes sociais
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Outras redes
- Métricas
Moreira, Daniel L.
; Dalto, Adriana G.
; Figueiredo JR, Alberto G.
; Valerio, Aline M.
; Detoni, Amalia M. S.
; Bonecker, Ana C. T.
; Signori, Camila N.
; Namiki, Cláudia
; Sasaki, Dalton K.
; Pupo, Daniel V.
; Silva, Danilo A.
; Kutner, Deborah S.
; Duque-Castaño, Diana C.
; Marcon, Eduardo H.
; Gallotta, Fabiana D. C.
; Paula, Fabiana S.
; Gallucci, Fabiane
; Roque, Gabriela C. F.
; Campos, Giulia S.
; Fonseca, Gustavo
; Mattos, Gustavo
; Lavrado, Helena P.
; Silveira, Ilson C. A. da
; Costa, Jessica O.
; Santos Filho, João R. dos
; Carneiro, Juliane C.
; Moreira, Julio C.F.
; Rozo, Laura
; Araujo, Leandro F.M.
; Lazzari, Letícia
; Silva, Letícia O. da
; Michelazzo, Luan S.
; Fernandes, Luciano F.
; Dottori, Marcelo
; Araújo Jr., Marcus A. G. de
; Chuqui, Mateus G.
; Ceccopieri, Milena
; Borges-Silva, Milton
; Kampel, Milton
; Bergo, Natascha M.
; Silva, Paulo V. M.
; Tura, Pedro M.
; Moura, Rafael B. de
; Romano, Renato G.
; Martins, Renato P.
; Carreira, Renato S.
; Toledo, Rodrigo G.A.
; Bonecker, Sérgio L.C.
; Disaró, Sibelle T.
; Rodrigues, Silvana V.
; Corbisier, Thais N.
; Vicente, Thaisa M.
; Paiva, Vitor G. de
; Pellizari, Vivian H.
; Belo, Wellington C.
; Brandini, Frederico P.
; Sousa, Silvia H.M
.
Abstract The Santos Basin (SB) is the main petroliferous basin in the Brazilian continental margin and one of the most studied marine areas in Brazil. However, historical data suggest that new efforts should be carried out to acquire quantitative biological data, especially in the deep sea, to establish the baseline of essential ocean variables in different ecosystems for future monitoring programs. The Brazilian energy company Petrobras planned and executed 24 oceanographic cruises over a period of 2 years to assess the benthic (SANSED cruise) and pelagic (SANAGU cruise) systems of the SB (356 days at sea in 2019 and 2021/2022). These efforts were part of the Santos Project, which comprised a comprehensive environmental study aimed at investigating benthic and pelagic variables to characterize ecology, biogeochemistry, thermohaline properties of water masses, and ocean circulation patterns, geomorphology, and sedimentology, as well as organic and inorganic chemistry. Here we present the detailed sampling designs and the field methods employed on board, during the SB scientific cruises. All sampling protocols were based on standardized approaches. For the benthos analyses, triplicate sediment samples were performed using a GOMEX-type box corer (0.25 m²) or a large modified Van Veen grab (0.75 m²) at 100 stations ranging from 25 to 2400 m depth. At each station, 25 geochemical and physico-chemical parameters were analyzed in addition to micro-, meio-, and macrofauna and living foraminifera samples. For the pelagic system, 60 stations were selected to investigate the plankton community, ranging in size from pico- to macroplankton, through vertical, horizontal, and oblique net hauls (20, 200, and 500 μm mesh size), as well as 25 biogeochemical parameters collected with an aid of a CTD-rosette sampler. Part of this scientific information also serves the Regional Environmental Characterization Project (PCR-BS) in support of Petrobras’ Santos Basin drilling licensing process led by the Brazilian Environmental Agency – IBAMA. This project contributes to the sustainable development of the SB, in line with the guidelines of the United Nations Decade of Ocean Science for Sustainable Development. (SB Brazil However programs SANSED cruise SANAGU 356 (35 201 2021/2022. 20212022 2021/2022 . 2021 2022 2021/2022) ecology biogeochemistry masses patterns geomorphology sedimentology chemistry board approaches analyses GOMEXtype GOMEX type 0.25 025 0 (0.2 m² 0.75 075 75 (0.7 10 240 depth station physicochemical physico chemical micro, micro , micro- meio, meio meio- system 6 community pico macroplankton vertical horizontal 20, 20 (20 200 50 size, size) CTDrosette CTD rosette sampler PCRBS PCR BS (PCR-BS IBAMA Development 35 (3 2021202 2021/202 202 0.2 02 (0. 0.7 07 7 1 (2 5 3 ( 202120 2021/20 0. (0 20212 2021/2 2021/
11.
Community-based assessment of marine resources contamination after a large-scale oil spill
Facebook Twitter
Facebook Twitter
- Outras redes sociais
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Outras redes
- Métricas
HAMACHER, CLÁUDIA
; FARIAS, CÁSSIA O.
; ARAÚJO, MICHELLE P.
; PITTA, JOÃO PEDRO M.P.
; SANTOS, CARLOS ALBERTO P. DOS
; SOARES, MÁRIO LUIZ GOMES
.
Abstract As of August 2019, several oil slicks reached the Brazilian coast, compromising local ecosystems and the economy of coastal communities. In this context, this study aimed to assess seafood quality at the Canavieiras Extractive Reserve (RESEX), located in the state of Bahia, Northeastern Brazil, by determining polycyclic aromatic hydrocarbons (PAHs) concentrations in local biota following the oil spill. It was designed and carried out in a participatory manner, involving RESEX fishers, shellfish and crab gatherers and managers, as well as university researchers. A total of 72 biota samples were analyzed, and the sum of the 16 priority USEPA PAHs ranged from less than the limit of detection to 30.81 ng g-1 (w.w.). When also considering alkylated compounds, concentrations ranged from 3.53 to 360.75 ng g-1 (w.w.). No sample contained PAHs concentrations suggestive of human consumption risks. No difference in PAHs concentrations between the six studied areas and regarding different biota feeding habits were observed. Higher PAHs concentrations were generally noted in molluscs, as these organisms do not have enzyme systems capable of metabolizing these compounds. This initiative demonstrated the feasibility of participatory construction resulting in a study concerning valued species to local communities, ensuring a contribution to local fishing and marketing activities.
12.
Inhibition of Acetylcholinesterase by Coumarin-Linked Amino Acids Synthetized via Triazole Associated with Molecule Partition Coefficient
Facebook Twitter
Facebook Twitter
- Outras redes sociais
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Outras redes
- Métricas
Sousa, Bianca L. de
; Leite, João P. V.
; Mendes, Tiago A. O.
; Varejão, Eduardo V. V.
; Chaves, Anna C. S.
; Silva, Júnio G. da
; Agrizzi, Ana P.
; Ferreira, Priscila G.
; Pilau, Eduardo J.
; Silva, Evandro
; Santos, Marcelo H. dos
.
Journal of the Brazilian Chemical Society
- Métricas do periódico
A previous study for the identification of acetylcholinesterase (AChE) inhibitors demonstrated that the hybrid between tyrosol, the 1,2,3-triazole nucleus, and the coumarin group, namely 7-({1-[2-(4-hydroxyphenyl)ethyl]-1H-1,2,3-triazol-4-yl}methoxy)-4-methyl-2H-chromen-2-one (10), has a high enzyme inhibitory activity. Here, we synthesized analogues of 10 via triazole with pharmacophoric groups represented by tyrosine, phenylalanine, tryptophan, and glycine in addition to evaluating the impact of coumarin-linked amino acids on AChE inhibition. We obtained eight triazoles, six of which are undescribed. In general, the presence of carboxylic acid decreased the inhibitory activity, while aromatic amino acids increased enzymatic inhibition compared to glycine. The derivative containing tyrosine, structurally most similar to 10, presented the lowest inhibition percentage, indicating that phenolic hydroxyl is not the preponderant factor for inhibition. Molecular docking was not enough to explain in vitro experiments. On the other hand, MlogP (logP calculated by the Moriguchi method) was related positively to enzymatic inhibition. To increase the hydrophobicity of the molecules, we tested the esterified triazole derivatives comparatively with the enzyme. The compound ethyl 2-(4-(((4-methyl-2-oxo-2H-chromen-7-yl)oxy)methyl)-1H-1,2,3-triazol-1-yl)acetate (6) presented an increment of inhibitory activity of 46.97 ± 1.75% at 100 μmol L-1. We also associated the best activity with the lowest van der Waals volume and molar mass values.
https://doi.org/10.21577/0103-5053.20200219
184 downloads
13.
OXIDATIVE STABILITY AND COLD FILTER PLUGGING POINT OF BIODIESEL BLENDS DERIVED FROM FATS AND SOY OIL
Facebook Twitter
Facebook Twitter
- Outras redes sociais
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Outras redes
- Métricas
Braun, João V.
; Santos, Samuel J.
; Espíndola, Guilherme C.
; Mattos, Gabriel F. de
; Ongaratto, Diego P.
; Oliveira, Diogo M. de
; Silva, Marlon W. da
; Vendrusculo, Vinícius
; Santos, Vinícius O. B. dos
; Renner, Rodrigo E.
; Naciuk, Fabrício F.
; Marques, Marcelo V.
; Fontoura, Luiz A. M.
.
Biodiesel made from oils is rich in polyunsaturated fatty acids methyl esters, and, consequently, presents high tendency to oxidize. Biodiesel made from fats, on the other hand, is mainly comprised by saturated chains. Although it is highly stable, they easily crystalize at low temperatures. Blends from both can exhibit optimized properties. In this work, oxidative stability, expressed by induction period (IP), and cold filter plugging point (CFPP) of blends from palm, palm kernel, babassu, tallow or lard biodiesels with soy one were measured. Biodiesel samples were prepared by two steps transesterification methodology with KOH catalysis followed by H2SO4. IP increases, as the fat biodiesel content in the blend is higher, as expected. Blends comprised by 60% of fat biodiesel by volume had their IP increased from 1.5 (lard) to 2 times (palm kernel), compared to soy one. At this level, IP was found 8 h or higher, except for palm, which 80% was required. CFPP was observed at 8 °C or lower for the blends containing up to 60% of all the fat biodiesel, except for the palm one, which a 20% content must not be surpassed. Palm kernel 80% biodiesel blend reached the Brazilian specification, that is, IP higher than 12 h and CFPP lower than 5 °C.
https://doi.org/10.21577/0100-4042.20170619
374 downloads
14.
Influência de Sorghum bicolor na emergência e desenvolvimento de Senna obtusifolia
Facebook Twitter
Facebook Twitter
- Outras redes sociais
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Outras redes
- Métricas
Fonseca, Wéverson L.
; Sousa, Tiago O.
; Santos, Adaniel S.
; Oliveira, João B. S.
; Pacheco, Leandro P.
; Fonseca, Rosane L.
; Zuffo, Alan M.
; Oliveira, Augusto M.
; Santos, Râmison F.
; Gomes, Tiago S.
.
RESUMO Na busca de alternativas para o controle de plantas daninhas, tem sido estudado o efeito físico e alelopático de culturas de cobertura. O objetivo deste trabalho consistiu em avaliar o potencial alelopático do taxóne Sorghum bicolor (sorgo) em diferentes quantidades de biomassa à superfície ou incorporada no solo na emergência e crescimento da planta daninha Senna obtusifolia. O estudo foi realizado em estufa num delineamento experimental inteiramente casualizado, com quatro repetições, em esquema fatorial (2 x 4) + 1 constituído por duas formas de adição ao solo do sorgo - incorporado e à superfície -, com quatro quantidades de biomassa - 3, 6, 9 e 12 t ha-1 de sorgo, mais um tratamento sem a utilização de cultura de cobertura (testemunha). As variáveis analisadas foram número total de plantas emergidas, área foliar, biomassa seca da parte aérea, volume de raízes e biomassa seca de raízes de S. obtusifolia. As formas de gestão em diferentes quantidades de biomassa de S. bicolor mostraram-se eficientes no controle de fedegoso (S. obtusifolia), com uma redução significativa (superior a 50%) na emergência, a partir de 2,81 t ha-1. A utilização do sorgo à superfície do solo proporcionou uma maior e significativa redução do número de plantas emergidas da planta daninha, independentemente da quantidade aplicada. A incorporação ao solo da biomassa de S. bicolor evidenciou também uma maior e significativa redução do crescimento de S. obtusifolia.
ABSTRACT In the search for alternatives to weed control, the physical and allelopathic effect of cover crops has been studied. The objective of this work was to evaluate the allelopathic potential of Sorghum bicolor in the emergence and growth of the weed Senna obtusifolia. The experiment was conducted in a greenhouse using a completely randomized experimental design, with four replications, in a factorial scheme (2 x 4) + 1, consisting of two soil addition forms of S. bicolor dry biomass (built-in and surface) with four amounts of the cover crop straws (3, 6, 9 and 12 t ha-1), plus one treatment without the use of cover crop (control). The analyzed variables were total number of emerged plants, leaf area, shoot dry matter, root volume and root dry matter of S. obtusifolia. The different amounts of dry biomass addition of S. bicolor were efficient in the control of S. obtusifolia, with a significant reduction (more than 50%) in the emergency when it was used in quantities from 2.81 t ha-1. Regardless of the biomass amount of S. bicolor, its use on the soil surface provided a greater reduction in the number of emerged weed plants. While the use of biomass incorporated in the soil, provided greater reduction of the growth of S. obtusifolia.
https://doi.org/10.19084/rca.15266
39 downloads
15.
Mixed Ternary Mononuclear Copper(II) Complexes Based on Valproic Acid with 1,10-Phenanthroline and 2,2'-Bipyridine Ligands: DNA Interaction and Cytotoxicity in V79 Cells
Facebook Twitter
Facebook Twitter
- Outras redes sociais
- Google+
- StambleUpon
- CiteULike
- Mendeley
- Outras redes
- Métricas
Pich, Claus T.
; Santos, Paulo R. dos
; Fortunato, Tatiana V. O.
; Chiarello, Marilda
; Oliveira, Iuri M. de
; Soares, Bárbara Q.
; Ghermani, Nour E.
; Machado, Miriana
; Roesch-Ely, Mariana
; Dumas, Françoise
; Terenzi, Hernan
; Henriques, João A. P.
; Moura, Sidnei
.
Journal of the Brazilian Chemical Society
- Métricas do periódico
This paper reports the DNA interaction and cytotoxicity of binary and ternary copper(II) complexes of valproic acid with phenanthroline or bipyridine and the complementary characterization of Cu(Valp)2Bipy by crystallography. Circular dichroism, plasmid and oligonucleotide assays have shown that the complexes interact with DNA in different manners and are able to cleave plasmid DNA and oligonucleotides at concentrations from 10 to 1000 mol L-1. The plasmid DNA cleavage is enhanced 650, 375 and 285 times by photo activation with UVB light for the complexes Cu(Valp)2Phen, Cu(Valp)2Bipy and Cu2(Valp)4, respectively. Cytotoxicity assays demonstrated that V79 cells were more sensitive to CuII derivatives than sodium valproate as evaluated by 3-(4,5-dimethylthiazol-2yl)-2,5-diphenyl tetrazolium bromide (MTT) and clonogenic assays, where the cytotoxic profile of the compounds was: Cu(Valp)2Phen higher than Cu(Valp)2Bipy, higher than Cu2(Valp)4. Therefore, we report two copper complexes, which interact with DNA and promote its cleavage, leading to an enhanced cytotoxicity when compared to valproic acid.
https://doi.org/10.21577/0103-5053.20180229
742 downloads
Exibindo
itens por página
Página
de 2
Próxima
Visualizar estatísticas de
Enviar resultado
Exportar resultados
Sem resultados
Não foram encontrados documentos para sua pesquisa
Glossário e ajuda para busca
Você pode enriquecer sua busca de uma forma muito simples. Use os índices de pesquisa combinados com os conectores (AND ou OR) e especifique cada vez mais sua busca.
Por exemplo, se você deseja buscar artigos sobre
casos de dengue no Brasil em 2015, use:ti:dengue and publication_year:2015 and aff_country:Brasil
Veja abaixo a lista completa de índices de pesquisa que podem ser usados:
Cód. do Índice | Elemento |
---|---|
ti | título do artigo |
au | autor |
kw | palavras-chave do artigo |
subject | assunto (palavras do título, resumo e palavras-chave) |
ab | resumo |
ta | título abreviado da revista (ex. Cad. Saúde Pública) |
journal_title | título completo da revista (ex. Cadernos de Saúde Pública) |
la | código do idioma da publicação (ex. pt - Português, es - Espanhol) |
type | tipo do documento |
pid | identificador da publicação |
publication_year | ano de publicação do artigo |
sponsor | financiador |
aff_country | código do país de afiliação do autor |
aff_institution | instituição de afiliação do autor |
volume | volume do artigo |
issue | número do artigo |
elocation | elocation |
doi | número DOI |
issn | ISSN da revista |
in | código da coleção SciELO (ex. scl - Brasil, col - Colômbia) |
use_license | código da licença de uso do artigo |