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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
2.
Potential reduction of non-imidazolinone rice grain yield by imidazolinone soil residual activity nonimidazolinone non
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Chiapinotto, Diego M.
; Avila, Luis A.
; Aranha, Bianca C.
; Viana, Vívian E.
; Benedetti, Lariza
; Araújo, Bruno O. N.
; Camargo, Edinalvo R.
.







Abstract Background Imidazolinone (IMI) soil residual activity can carryover and affect non-tolerant rice growth and grain yield. Objective This study aimed to determine the IMI soil residual concentration that can potentially reduce non-IMI rice plant height (PH) and grain yield (GY). Methods Two field experiments in a randomized complete block design were performed to estimate the D10 value (herbicide rate that reduces the rice plant height or grain yield by 10%). The factorial arrangement comprised: A) non-IMI rice (ProvisiaTM, IRGA 417, and IRGA 424); B) rates of imazapyr + imazapic: 0 to 0.25x (x = 147 + 49 g ai ha-1) applied 28 days before non-tolerant rice sowing. IMI concentration analyses were performed through high-performance liquid chromatography coupled to tandem mass spectrometry (HPLC-MS/MS) using soil samples from the 0-20 cm depth on the day of rice sowing. The data (concentration of imazapyr, imazapic and imazapyr + imazapic in the soil) were analyzed via linear regression. The means of imazapyr + imazapic were used to fit PH and GY by a nonlinear mixed-effects model. Results Imazapyr + imazapic soil concentration ranged from 0 to 10.08 μg kg-1 (Year 1) and 0 to 20.11 μg kg-1 (Year 2). D10 values for PH were 5.20, 4.03, and 4.07 μg kg-1, while D10 values for GY were 4.55, 2.76, and 3.84 μg kg-1 for ProvisiaTM, IRGA 417, and IRGA 424, respectively. Conclusions The soil concentration of imidazolinones at rice sowing that can reduce grain yield is 2.8 to 4.5 μg kg-1, close to the field applied doses of 3–6%, depending on various environmental and soil factors. (IMI nontolerant non tolerant nonIMI (PH GY. . (GY) D D1 herbicide 10%. 10 10% 10%) comprised A ProvisiaTM (ProvisiaTM 417 424 424) B 025x x 25x 14 4 ha1 ha 1 ha-1 2 highperformance high performance HPLCMS/MS HPLCMSMS HPLC MS/MS MS (HPLC-MS/MS 020 20 0-2 regression mixedeffects mixed effects model 1008 08 10.0 kg1 kg kg- Year 2011 11 20.1 2. 2) 520 5 5.20 403 03 4.03 407 07 4.0 kg1, 1, 455 55 4.55 276 76 2.76 384 3 84 3.8 respectively 8 45 4. 36 6 3–6% factors (GY 41 42 ha- HPLCMS MSMS 02 0- 100 10. 201 20. 52 5.2 40 27 7 2.7 38 3. 3–6 5. 3–
3.
Is herbicide applied using drones as efficient as when applied using terrestrial systems? systems
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Palacios-Zuñiga, Roque M.
; Polito, Rubens A.
; Araújo, Bruno Oliveira N.
; Schröder, Eugênio P.
; Burkert, Viviane G.
; Avila, Luis A.
; Camargo, Edinalvo R.
.







Abstract Background drones for pesticide application have become more popular due to their practicality and reduction in cost. Accessing drone efficacy in herbicide application is needed. Objective This work aimed to determine the efficiency of drones in applying glyphosate and glufosinate to control ryegrass and oilseed radish compared to electrostatic and conventional ground herbicide applications. Methods The experiments were conducted in a factorial arrangement with five replications and repeated in time. Factor A consisted of spraying methods [drone, electrostatic ground spraying (electrostatic), and conventional ground spraying (conventional)], and factor B consisted of eight doses of glyphosate and glufosinate. A CO2 pressurized backpack was equipped with XR TeeJet® 11001VS spray nozzles for electrostatic and conventional applications, adjusted to a spray volume of 100 L ha-1. The drone, Pelicano® 2022 model (Skydrones), was equipped with the same spray nozzles but was regulated to a spray volume of 10 L ha-1. Results: The results demonstrated that glyphosate application via drones provided superior control of ryegrass and oilseed radish compared to terrestrial methods, whereas glufosinate’s effectiveness was comparable to that of ground-based applications. Conclusions drone application of glyphosate and glufosinate was efficient in controlling ryegrass and oilseed radish, being as good as ground spraying, even demonstrating that low spray volume does not significantly interfere with weed control in this study. cost needed applications time [drone electrostatic, , (electrostatic) conventional, (conventional)] CO TeeJet VS ha1. ha1 ha 1. 1 ha-1 Pelicano 202 Skydrones, Skydrones (Skydrones) Results glufosinates s groundbased based study (electrostatic (conventional) ha- 20 (Skydrones (conventional 2
4.
Performance and bone health of broilers reared under artificial lighting and supplemented with different levels of vitamin D3 D
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Lopes, Tainá Silva Brandão
; Vasconcelos, Mariana Diniz Costa
; Costa, Bruno Teixeira Antunes
; Sousa, Lorena Salim
; Bertassoli, Bruno Machado
; Ocarino, Natália de Melo
; Serakides, Rogéria
; Lara, Leonardo José Camargos
; Araújo, Itallo Conrado Sousa
.









ABSTRACT This study aimed to investigate the effects of different levels of vitamin D3 in broiler diets on performance and bone health. A total of 360 one-day old male Cobb500® broiler chicks were subjected to five treatments of different levels of vitamin D3 in diets during two rearing phases: 0 IU/kg in both phases; 625 IU/kg in starter and 500 IU/kg in grower phase (25% of commercial inclusion); 1,250 IU/kg in starter and 1,000 IU/kg in grower phase (50% of commercial inclusion); 1,875 IU/kg in starter and 1,500 IU/kg in grower phase (75% of commercial inclusion); and 2,500 IU/kg in starter and 2,000 IU/kg in grower phase (100% of commercial inclusion). The traits studied weekly were feed intake, body weight, feed conversion, and viability. At 21 and 35 days of age, tibiae and femurs were removed, dissected, and evaluated for dry matter (DM), ash (%MM), calcium (%Ca), phosphorus (%P) and breaking strength. At 35 days of age, the bones were subjected to histopathological analysis for macro- and microscopic morphological evaluation. Data were subjected to regression analysis, using α = 0.05. The variables of percentage %MM, %Ca, %P, and breaking strength experienced a positive linear effect up to the supplementation levels of approximately 25% of inclusion. The histopathological analysis found that the group that received the diet with 100% inclusion of vitamin D3 presented lesions compatible with osteopetrosis and tibial dyschondroplasia. The observed results showed that for isonutritive diets, reduced levels of vitamin D3 guaranteed performance during the evaluated period while the use of 100% of vitamin D3, as commonly used, can cause bone diseases and harm the welfare of broilers. D health 36 oneday one day Cobb500 Cobb phases IUkg IU kg 62 50 25 (25 inclusion) 1250 1 250 1,25 1000 000 1,00 50% (50 1875 875 1,87 1500 1,50 75% 75 (75 2500 2 2,50 2000 2,00 100 (100 . intake weight conversion viability 3 age removed dissected DM, DM , (DM) MM %MM (%MM) Ca %Ca (%Ca) %P P (%P macro evaluation 005 05 0.05 dyschondroplasia used broilers Cobb50 6 5 (2 125 1,2 00 1,0 (5 187 87 1,8 150 1,5 7 (7 2,5 200 2,0 10 (10 (DM (%MM (%Ca 0.0 Cobb5 ( 12 1, 18 8 15 2, 20 (1 0.
5.
Gonioscopy-assisted transluminal trabeculotomy (GATT) outcomes in eyes with open-angle glaucoma resistant to maximum treatment
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Faria, Bruno M. de
; Daga, Fábio B.
; Rebouças-Santos, Vespasiano
Araújo, Rafael B. de
Matos Neto, Carlos
Jacobina, Jéssica S.
Faria, Marco A. R. de


Arquivos Brasileiros de Oftalmologia
- Métricas do periódico
RESUMO Objetivo: Reportar a curva de aprendizado dos 2 anos iniciais da trabeculotomia transluminal assistida por gonioscopia, usando a técnica de sutura termicamente atenuada e revisar os fatores que podem afetar o resultado. Métodos: Este estudo retrospectivo incluiu 100 olhos de 89 participantes com glaucoma resistente ao tratamento clínico máximo, definido como tendo pressão intraocular superior a 21mmHg, além de três ou quatro drogas hipotensoras diferentes. Pressão intraocular inicial, 1 semana, primeiro, segundo, terceiro, sexto, 12 e 24 meses de acompanhamento; necessidade de medicação antiglaucoma; necessidade de mais cirurgias anti-glaucomatosas foram registradas. Olhos que necessitaram de intervenção cirúrgica adicional para o controle da pressão intraocular foram considerados como insucesso. Resultados: Cinquenta e um olhos foram submetidos à trabeculotomia transluminal assistida por gonioscopia isolado e 49 olhos à trabeculotomia transluminal assistida por gonioscopia associado à extração de catarata no mesmo tempo cirúrgico. Houve diferença estatisticamente significativa entre a pressão intraocular média global no acompanhamento e a pressão intraocular média pré-operatória (p<0,001) em todas as visitas do acompanhamento. Ao avaliar a extensão do tratamento, os pacientes com extensão de 360 graus não apresentaram pressão intraocular média menor estatisticamente significativa em comparação com outras extensões. O hifema foi a única complicação presente em 50 olhos (50%), contudo todos tiveram resolução espontânea em quatro semanas. Um total de 26 olhos (26%) teve que ser submetido a trabeculectomia convencional adicional devido à pressão intraocular descontrolada, principalmente aqueles previamente submetidos à cirurgia vitreorretiniana. Conclusões: A trabeculotomia transluminal assistida por gonioscopia, além de ser um procedimento aparentemente seguro, apresenta taxas de sucesso satisfatórias, mesmo durante a curva de aprendizado inicial do cirurgião. A técnica foi efetiva em reduzir a pressão intraocular e uso de medicamentos.
ABSTRACT Purpose: To report the initial 2 years’ learning curve on gonioscopy-assisted transluminal trabeculotomy performed using the thermally blunted suture technique and review the factors that could potentially affect the outcome. Methods: This retrospective study evaluated 100 eyes from 89 participants with glaucoma resistant to maximum clinical treatment, which was defined as having an intraocular pressure >21 mmHg in addition to three or four different hypotensive drugs. Intraocular pressure values at baseline, 1 week, and at 1, 2, 3, 6, 12, and 24 months of follow-up and details regarding the need of antiglaucoma medication and further glaucoma surgery were recorded. Eyes that required further surgical intervention for intraocular pressure control were considered as failure. Results: A total of 51 eyes were subjected to isolated gonioscopy-assisted transluminal trabeculotomy, and 49 eyes were subjected to gonioscopy-assisted transluminal trabeculotomy + cataract extraction at the same surgical time. A statistically significant difference was observed between overall mean follow-up intraocular pressure and mean preoperative intraocular pressure (p<0.001) in all follow-up visits. When the extent of treatment was evaluated, patients with an extension of 360° did not exhibit statistically significantly lower mean intraocular pressure than those with other extensions. Hyphema was the only complication presented in 50 eyes (50%), but all had spontaneous resolution within 4 weeks. A total of 26 eyes (26%) required additional conventional trabeculectomy due to uncontrolled intraocular pressure, especially those who previously underwent vitreoretinal surgery. Conclusions: Gonioscopy-assisted transluminal trabeculotomy, besides being an apparently safe procedure, results in satisfactory success rates even during the surgeon’s initial learning curve. The technique was effective in decreasing intraocular pressure and medication burden.
https://doi.org/10.5935/0004-2749.20210083
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6.
Biodegradation of the Polycyclic Aromatic Hydrocarbon Fluoranthene by Fungi Strains from a Brazilian Tropical Peat
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Garcia, Anuska C. F. S.
; Birolli, Willian G.
; Araújo, Bruno R.
; Marques, Carla G.
; Barbosa-Junior, Antônio M.
; Diniz, Leandro E. C.
; Porto, André L. M.
; Romão, Luciane P. C.
.








Journal of the Brazilian Chemical Society
- Métricas do periódico
Polycyclic aromatic hydrocarbons (PAHs) are an important environmental issue and the identification of new biocatalysts for an efficient biodegradation of these compounds is essential for bioremediation. Therefore, fungi strains isolated for the first time from a tropical peat at Santo Amaro das Brotas (Brazil) were studied for fluoranthene biodegradation. Fusarium sp. AC-7, Penicillium sp. AC-1 and Penicillium sp. AC-6 were isolated using fluoranthene as sole carbon source. All strains were tested for biodegradation of 100 mg L−1 fluoranthene during 14 and 28 days. After 28 days of biodegradation, 64 ± 3, 60 ± 4 and 51 ± 2% biodegradation was observed for Penicillium sp. AC-1, Penicillium sp. AC-6 and Fusarium sp. AC-7, respectively. Analysis of the obtained compounds enabled the identification of four metabolites, which were common to the three employed strains: anthrone, anthraquinone, 9-methoxyanthracene and cyclopropa[1]phenanthrene. It is important to note that control experiments were performed. The obtained results clearly demonstrated the efficiency of tropical peat fungi in the transformation of fluoranthene. These findings showed the potential of tropical peats for isolation of fungi and indicated that these strains can be applied for bioremediation processes of areas contaminated with fluoranthene and other PAHs.
https://doi.org/10.21577/0103-5053.20210078
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7.
Chemical Constituents and Cytotoxic Activity of Rhinella jimi (Anura: Bufonidae)
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Monção Filho, Evaldo S.
; Pio, Yara P. F.
Chaves, Mariana H.
Ferreira, Paulo M. P.
Fonseca, Mariluce G.
Pessoa, Cláudia
Lima, Daisy J. B.
Araújo, Bruno Q.
Vieira Jr., Gerardo M.

Journal of the Brazilian Chemical Society
- Métricas do periódico
Rhinella jimi toads (Stevaux, 2002) belong to the Bufonidae family, are endemic in the Brazilian Northeast and are commonly found during rainy periods. In general, amphibians of this family have in their poisons different metabolites that show a diversity of pharmacological activities. The isolation and identification of these compounds are of great importance, and techniques such as high-performance liquid chromatography coupled to mass spectrometry are widely used for the discovery of novel and known compounds in these poisons. For R. jimi poison, the ethyl acetate and methanolic extracts were obtained and thirty compounds were identified by combining ultra-performance liquid chromatography coupled to mass spectrometry (UPLC-MS) with direct infusion atmospheric pressure chemical ionization mass spectrometry (DI-APCI-MS/MS) and direct infusion electrospray mass spectrometry (DI-ESI-MS/MS) for each extract, respectively. Marinobufagin (2) and marinobufotoxin (19) were the majorities of each extract, respectively. In addition, other bufadienolides mainly present in the ethyl acetate extract, such other bufotoxins, alkaloids and arginine diacid derivatives were identified in the methanol extract. In a cytotoxic assay by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), the extracts and compound 2 demonstrated half-maximal inhibitory concentration (IC50) values better than the positive control doxorubicin, evidencing excellent cytotoxic. This is the most complete study of the chemical composition of R. jimi toad poison and its respective cytotoxic activity, promoting the enrichment of knowledge about this family and species.
https://doi.org/10.21577/0103-5053.20210009
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8.
Isolation and genotyping of Mycobacterium bovis in suggestive lesions of tuberculosis in cattle slaughtered in the state of Ceará, Brazil
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Ferreira, Felipe F.
; Oliveira, Maria L.M.
; Alzamora Filho, Fernando
; Santos, Bruno R.
Araújo, Luenny C.S.S.C.
Santos, Evelin S.V.
Gomes, Harrison M.
Costa, Joselito N.



RESUMO: A tuberculose bovina (TB) é uma zoonose causada pelo Mycobacterium bovis, o qual induz ao desenvolvimento de lesões nodulares e granulomatosas em vários tecidos do animal. O reconhecimento dessas lesões macroscópicas sugestivas durante a inspeção sanitária post mortem em matadouros fornece um diagnóstico presuntivo, sendo necessário a utilização de testes complementares para confirmação da doença. O objetivo deste trabalho foi verificar a ocorrência da TB em animais abatidos em matadouros-frigoríficos no estado do Ceará através da utilização de métodos bacteriológicos e moleculares. Para tanto, foram analisadas lesões sugestivas de TB em carcaças condenadas pelo Serviço de Inspeção Estadual (SIE). As amostras foram submetidas à análise microbiológica, utilizando meios de cultivo e de coloração específicos, seguida pela técnica molecular spoligotyping para identificação e tipificação genética da micobactéria. Verificou-se a ocorrência de lesões sugestivas de TB em carcaças bovinas (0,071%) oriundas de diferentes municípios do estado do Ceará. Essas lesões estavam localizadas principalmente no pulmão (95,12%), linfonodos (58,53%) e fígado (36,58%). O cultivo microbiológico obteve isolamento bacteriano (17,94%), com o crescimento de colônias apresentando características morfológicas e tintoriais pertencentes ao gênero Mycobacterium spp. A análise do polimorfismo genético identificou a presença de M. bovis em todos os isolados, que foram discriminados em seis espoligotipos (SB0121, SB0295, SB1064, SB0120, SB0870 e SB0852), descritos no Brasil e em diversas áreas do mundo, exceto os perfis SB1064 e SB0852 que foram descritos pela primeira vez no país. Os resultados obtidos demonstram que a associação dos métodos diagnósticos utilizados foram a base do primeiro estudo de identificação das micobactérias encontradas no estado do Ceará, o que pode contribuir para a criação de um banco de dados para o estudo epidemiológico da TB no estado.
ABSTRACT: Bovine tuberculosis (BTB) is a zoonosis caused by the bacterium Mycobacterium bovis, which induces the development of nodular and granulomatous lesions in various animal tissues. The recognition of these suggestive gross lesions during postmortem sanitary inspection in slaughterhouses provides a presumptive diagnosis, which requires the use of complementary tests to confirm the disease. This study aimed to verify the occurrence of BTB in cattle slaughtered in slaughterhouses in the state of Ceará, Brazil, using bacteriological and molecular methods. To this end, suggestive lesions were analyzed on carcasses condemned by the “Serviço de Inspeção Estadual” (SIE). The samples were submitted to microbiological analysis using culture media and specific staining followed by spoligotyping molecular technique for identification and genotyping of the mycobacteria. Occurrence of lesions suggestive of BTB was verified in bovine carcasses (0.071%) from different municipalities of the state. These lesions were located mainly in the lung (95.12%), lymph nodes (58.53%), and liver (36.58%). Microbiological culture showed bacterial isolation (17.94%), with the growth of colonies showing morphological and tannic characteristics belonging to genus Mycobacterium spp. Genetic polymorphism analysis identified M. bovis in all isolates, which were discriminated into six spoligotypes (SB0121, SB0295, SB1064, SB0120, SB0870, and SB0852). These profiles have been described in Brazil and several areas of the world, except for profiles SB1064 and SB0852, which were described in the country for the first time. The results show that the association of the diagnostic methods used was the basis for the first study on identification of mycobacteria found in the state, which may provide a database for the epidemiological study of BTB in the state of Ceará.
https://doi.org/10.1590/1678-5150-pvb-6519
666 downloads
9.
Chitosan Nanoparticles Loaded with Carvacrol and Carvacryl Acetate for Improved Anthelmintic Activity
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André, Weibson P. P.
; Paiva Jr., José R.
; Cavalcante, Géssica S.
Ribeiro, Wesley L. C.
Araújo Filho, José V. de
Cavalcanti, Bruno C.
Morais, Selene M. de
Oliveira, Lorena M. B. de
Bevilaqua, Claudia M. L.
Abreu, Flávia O. M. S.


Journal of the Brazilian Chemical Society
- Métricas do periódico
Carvacrol (CV) and carvacryl acetate (CVA) are bioactive compounds that have anthelmintic action and the nanoencapsulation may be an alternative to potentialize their efficacy. The aim of this work was to nanoencapsulate CV and CVA using chitosan/gums and evaluate cytotoxicity and the anthelmintic activity. A 24 factorial experimental design was performed to determine the influence of gum type (arabic or chichá), amount of surfactant and the number of layers in the nanoencapsulation degree. CVA and CV presented encapsulation efficiency (EE) optimum values of 90 and 20% (experiments 8 and 9), respectively. The monolayer and bilayer formulations presented maximum size of 479 and 811 nm, respectively. Nanoencapsulated CVA (nCVA) with bilayer coating and higher surfactant levels showed good thermal stability and no toxicity. In vitro kinetics for nCVA with chitosan/chichá gum showed slower release profiles than nCVA with chitosan/gum arabic, with 50% release after 30 and 20 h, respectively. CVA and nCVA at a concentration of 150 µg mL−1 reduced the motility of H. contortus adult nematodes by 100 and 91.7%, respectively. In summary, nCVA chitosan/chichá gum showed high encapsulation efficiency, favorable release rate and anthelmintic activity against H. contortus.
https://doi.org/10.21577/0103-5053.20200047
382 downloads
10.
Mutual Coupling Reduction in Phased Array Antennas Applying High-Impedance Surface at X Band
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Araújo, José Bruno O. de
; Souza, Vanessa P. R. Magri
; Ferreira, Tadeu N.
; Matos, Leni J. de
; Siqueira, Glaucio L.
; Souza, Jorge M.
; Silva, Maurício W. B. da
.







Journal of Microwaves, Optoelectronics and Electromagnetic Applications
- Métricas do periódico
Abstract This paper presents a microstrip phased array using High Impedance Surface - Electromagnetic Bandgap (HIS-EBG) in order to minimize the effects of mutual coupling among the antenna elements. Each element of the array is fed by a coaxial cable allowing the beam steering by controlling the signal of the input port of each element. This phased array operates at X Band as well as the bandgap of the HIS-EBG structure. Its main applications are satellite communication and broadcasting systems. Results show reductions in the mutual coupling up to 12 dB, and improvements in the return loss and gain.
https://doi.org/10.1590/2179-10742020v19i11773
1687 downloads
11.
Using Magnetized (Fe3O4 / Biochar Nanocomposites) and Activated Biochar as Adsorbents to Remove Two Neuro-Active Pesticides from Waters
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Matos, Tassya T. S.
Schultz, Juliana
Khan, Muhammad Y.
Zanoelo, Everton F.
Mangrich,, Antônio S.
Araújo, Bruno R.
Navickiene, Sandro
Romão, Luciane P. C.
Journal of the Brazilian Chemical Society
- Métricas do periódico
This work describes the removal of pesticides from water using activated and magnetized biochars produced from exhausted husk, and dry tannin from barks of black wattle (Acacia mearnsii De Wild.). These materials were characterized using chemical, spectroscopic, thermal, solid structure and surface area techniques. The activated and magnetized biochars were effective in removing the pesticides thiacloprid and thiamethoxam from both ultrapure water and Marcela Water Reservoir, Itabaiana, Sergipe State, Brazil. At the longest time examined, the amounts of thiacloprid and thiamethoxam adsorbed per gram of activated biochar adsorbent were 1.02 and 0.97 mg, respectively, while values of 0.73 mg (thiacloprid) and 0.40 mg (thiamethoxam) were obtained using magnetized biochar. A pseudo-second order model correctly described the kinetics of adsorption of both pesticides (R(2) ≥ 0.922). Desorption experiments revealed that the spent biochars could not be easily regenerated, which indicated that the forces holding the adsorbed fluid molecules to the solid surface were relatively strong.
https://doi.org/10.21577/0103-5053.20170042
1696 downloads
12.
Middle cerebral artery aneurysms: aneurysm angiographic morphology and its relation to pre-operative and intra-operative rupture
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Estevão, Iracema Araújo
Camporeze, Bruno
Araujo Jr, Antonio Santos de
Nery, Breno
Antunes, Ápio Claudio Martins
Smith, Timothy R.
Aguiar, Paulo Henrique Pires de
RESUMO Objetivo Correlacionar a morfologia do aneurisma da bifurcação da artéria cerebral média com o risco de ruptura pré-operatória e intra-operatória. Métodos 40 pacientes com 46 aneurismas de bifurcação da artéria cerebral média receberam tratamento microcirúrgico pelo mesmo cirurgião. Os aneurismas foram classificados de acordo com a morfologia e o teste de Fisher foi aplicado para analisar o efeito da morfologia sobre a ruptura pré-operatória e intra-operatória. Resultados As rupturas pré e intra-operatória foram observadas em 8/46 pacientes (17,4%) e 14/46 (30,4%) respectivamente. Trinta e dois casos (69,6%) não apresentaram sintomas pós-operatórios, pontuação de Rankin modificada (MRS) de 0, 6,5% tinham MRS de 1 (sem incapacidade significativa), 13% tinham MRS de 2 (leve incapacidade), 4,3% moderadamente grave (MRS de 4) e houve 3 óbitos (6,5%) durante o pós-operatório. A morfologia não estava diretamente relacionada à taxa de ruptura pré-operatória ou intra-operatória. Conclusão Em geral, as rupturas não são afetadas pela morfologia ou pelas variáveis estudadas. São necessárias séries maiores para validar esses resultados.
ABSTRACT Objective Correlate the middle cerebral artery bifurcation aneurysm morphology with the pre-operative and intra-operative risk of rupture. Methods Forty patients with 46 middle cerebral artery bifurcation aneurysms were treated microsurgically by the same surgeon. Aneurysms were classified according to shape and the Fisher test was applied to analyze the effect of morphology on the pre-operative and intra-operative rupture. Results Pre-operative and intra-operative ruptures were observed in 8/46 patients (17.4%) and 14/46 patients (30.4%) respectively. Thirty-two cases (69.6%) had no symptoms postoperatively, modified Rankin score (MRS) of 0; 6.5% had MRS of 1 (no significant disability); 13% had MRS of 2 (slight disability); 4.3% had moderately severe disability (MRS of 4); and there were 3 deaths (6.5%) post-operatively. The morphology was not directly related to the rupture rate. Conclusion In general, ruptures are not affected by the morphology or the studied variables. Larger series are needed to validate these outcomes.
https://doi.org/10.1590/0004-282x20170082
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13.
Diurnal Pattern of Leaf, Flower and Fruit Specific Ambient Volatiles above an Oil Palm Plantation in Pará State, Brazil
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Jardine, Kolby J.
Gimenez, Bruno O.
Araújo, Alessandro C.
Cunha, Roberto L.
Felizzola, Juliana Feitosa
Piva, Luani R.
Chambers, Jeffrey Q.
Higuchi, Niro
Journal of the Brazilian Chemical Society
- Métricas do periódico
Oil palm plantations are rapidly expanding in the tropics because of insatiable global demand for fruit oil to be used in food, biofuels and cosmetics. Here we show that three tissue-specific volatiles can be quantified in ambient air above an African-American hybrid oil palm plantation in Brazil and linked photosynthesis (isoprene), floral scent (estragole), and for the first time, fruit oil processing (6-methyl-5-hepten-2-one, MHO). Plant enclosure techniques verified their tissue specific emission sources with ambient concentrations displaying distinct diurnal patterns above the canopy. Isoprene concentrations were near zero at night, but dramatically increased during the day while estragole showed elevated concentrations at night suggesting a light-independent, temperature-driven emission pattern from flowers. MHO also showed elevated concentrations at night and both estragole and MHO increased during the day. Our observations demonstrate that the African-American oil palm hybrid is strong isoprene emitter and suggest that MHO is a specific oxidation product of lycopene released during the industrial processing of palm oil. This study highlights the potential value of quantifying volatile oil palm signals in the atmosphere as a novel, non-invasive method to better understand biological functioning and its interactions with the environment including carbon assimilation, floral-insect interactions, and fruit oil production/processing.
https://doi.org/10.5935/0103-5053.20160194
1318 downloads
14.
Genome Mining of Endophytic Streptomyces wadayamensis Reveals High Antibiotic Production Capability
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Angolini, Célio F. F.
Gonçalves, Ana B.
Sigrist, Renata
Paulo, Bruno S.
Samborskyy, Markiyan
Cruz, Pedro L. R.
Vivian, Adriana F.
Schmidt, Eduardo M.
Eberlin, Marcos N.
Araújo, Welington L.
Oliveira, Luciana G. de
Journal of the Brazilian Chemical Society
- Métricas do periódico
The actinobacteria Streptomyces wadayamensis A23, an endophitic strain, was recently sequenced and previous work showed qualitatively that the strain inhibits the growth of some pathogens. Herein we report the genome analysis of S. wadayamensis which reveals several antibiotic biosynthetic pathways. Using mass spectrometry, we were able to identify desferoxamines, several antimycins and candicidin, as predicted. Additionally, it was possible to confirm that the biosynthetic machinery of the strain when compared to identified known metabolites is far underestimated. As suggested by biochemical qualitative tests, genome encoded information reveals that the strain A23 has high capability to produce antibiotics.
https://doi.org/10.5935/0103-5053.20160180
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15.
Development of standardized extractive solution from Lippia sidoides by factorial design and their redox active profile
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Lima, Bruno S.
Ramos, Cledison S.
Santos, João P.A.
Rabelo, Thallita K.
Serafini, Mairim R.
Souza, Carlos A.S.
Soares, Luiz A.L.
Quintans Júnior, Lucindo J.
Moreira, José C.F.
Gelain, Daniel P.
Araújo, Adriano A.S.
Silva, Francilene A.
Revista Brasileira de Farmacognosia
- Métricas do periódico
AbstractThe aim of this study was to evaluate the influences of variables of preparation on total flavonoids content from extractive solution of Lippia sidoides Cham., Verbenaceae. Thus a 23 factorial design was used to study the importance of plant proportion, the extraction method and solvent on the extraction of flavonoid. The methodology of determination of chemicals in factorial design was validated according to the parameters required by Brazilian Health Agency. The extraction solution was selected through a full factorial design where the best conditions to achieve the highest content of flavonoids were: 7.5% (w/v) of plant with ethanol 50% (v/v) as solvent. The polyphenols content was determined by LC method and its relationship with the antioxidant and free radical scavenging activities was evaluated. The free radical scavenging activities and antioxidant potentials were determined for different concentrations using various in vitro models. Our results indicate that extracts exhibited a significant dose-dependent antioxidant effect as evaluated by TRAP/TAR assays. Besides, we observed an antioxidant activity against hydroxyl radicals and nitric oxide, and protection against lipid peroxidation in vitro. Our results suggest that the extract presents significant in vitro antioxidant potential indicating promising perspectives for its use as pharmaceutical/or food additive.
https://doi.org/10.1016/j.bjp.2014.12.004
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