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au:Nunes, José A. R.
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Biologically Active Volatile Organic Compounds (VOCs) Produced by Rhizospheric Actinobacteria Strains Inhibit the Growth of the Phytopathogen Colletotrichum musae
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Brito, Maria V. de
; Fonseca, Wéverson L.
; Mafezoli, Jair
; Barbosa, Francisco G.
; Nunes, Fátima M.
; Mattos, Marcos C. de
; Santos, João E. A. dos
; Araujo, Francisca S. A.
; Vieira, Regimara F. B. S.
; Magalhães, Hilton C. R.
; Muniz, Celli R.
; Garruti, Deborah S.
; Ootani, Marcio A.
; Souza Netto, José M.
; Pinto, Licarion
; Viana, Francisco M. P.
; Oliveira, Maria C. F.
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Journal of the Brazilian Chemical Society
- Métricas do periódico
The antifungal potential of volatile organic compounds (VOCs) produced by actinobacterial strains Streptomyces sp. (ACTB-77) and Amycolatopsis sp. (ACTB-290) from the rhizosphere of Caatinga plants against Colletotrichum musae was investigated. VOCs produced by these microorganisms (axenic and co-culture) were investigated using headspace-solid phase micro-extraction (HS-SPME) and gas chromatography-mass spectrometry (GC-MS). Although no exclusive VOC peaks were observed in the co-culture with ACTB-77, the same experiment involving ACTB-290 yielded five new peaks, including two identified alcohols, suggested as bioreductive products of the corresponding ketones by the fungus. Statistical analysis revealed that co-culture ACTB-77/C. musae has a closer similarity to the fungus than to the actinobacteria, while the co culture ACTB-290/C. musae showed closer similarity to the actinobacteria. These confirmed the more pronounced antifungal activity of the ACTB-290 strain, as observed in the fungus growth inhibition experiments. The antifungal activity of ACTB-290 was associated to its sulfur-containing metabolites, while linalool was suggested as responsible for the ACTB-77 activity.
2.
Multiple resistance in goosegrass to clethodim, haloxyfop-methyl and glyphosate
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Abstract Background Goosegrass is one of the most troublesome weed species in Brazil due to its wide dispersion and the ability to evolve herbicide resistance. Objective Investigate the response of goosegrass accessions from Mato Grosso, Brazil to glyphosate, clethodim, and haloxyfop. Methods Goosegrass seed samples were collected from seventeen production fields (accessions) in Mato Grosso and screened with the recommended label rates of clethodim, haloxyfop-methyl, and glyphosate. Six accessions withstood the label rate of the evaluated herbicides and were subjected to a dose-response study. Out of the six accessions, two were selected for further F1 dose-response investigations due to their ability to survive the label rate of the three herbicides individually. All studies were conducted under greenhouse conditions in a completely randomized design with four replications, and the F1 dose-response study was replicated in time. Results All six accessions investigated in the dose-response study presented ED50 values higher than susceptible plants for control and biomass reduction. Haloxyfop-methyl had the highest resistance ratios, followed by clethodim and glyphosate. The two accessions investigated in the F1 dose-response study were confirmed to be cross-resistant to clethodim and haloxyfop-methyl and showed low-level resistance to glyphosate. Conclusions The continuous reliance of POST herbicides for weed management in Mato Grosso cropping systems has selected goosegrass accessions that can withstand high rates of ACCase-inhibiting herbicides, particularly haloxyfop-methyl. Moreover, two accessions with resistance to ACCase-inhibiting herbicides, clethodim and haloxyfop-methyl, and low-level resistance to glyphosate were identified, suggesting the presence of multiple resistance in goosegrass accessions from Mato Grosso, Brazil.
3.
The Program for Biodiversity Research in Brazil: The role of regional networks for biodiversity knowledge, dissemination, and conservation
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ROSA, CLARISSA
; BACCARO, FABRICIO
; CRONEMBERGER, CECILIA
; HIPÓLITO, JULIANA
; BARROS, CLAUDIA FRANCA
; RODRIGUES, DOMINGOS DE JESUS
; NECKEL-OLIVEIRA, SELVINO
; OVERBECK, GERHARD E.
; DRECHSLER-SANTOS, ELISANDRO RICARDO
; ANJOS, MARCELO RODRIGUES DOS
; FERREGUETTI, ÁTILLA C.
; AKAMA, ALBERTO
; MARTINS, MARLÚCIA BONIFÁCIO
; TOMAS, WALFRIDO MORAES
; SANTOS, SANDRA APARECIDA
; FERREIRA, VANDA LÚCIA
; CUNHA, CATIA NUNES DA
; PENHA, JERRY
; PINHO, JOÃO BATISTA DE
; SALIS, SUZANA MARIA
; DORIA, CAROLINA RODRIGUES DA COSTA
; PILLAR, VALÉRIO D.
; PODGAISKI, LUCIANA R.
; MENIN, MARCELO
; BÍGIO, NARCÍSIO COSTA
; ARAGÓN, SUSAN
; MANZATTO, ANGELO GILBERTO
; VÉLEZ-MARTIN, EDUARDO
; SILVA, ANA CAROLINA BORGES LINS E
; IZZO, THIAGO JUNQUEIRA
; MORTATI, AMANDA FREDERICO
; GIACOMIN, LEANDRO LACERDA
; ALMEIDA, THAÍS ELIAS
; ANDRÉ, THIAGO
; SILVEIRA, MARIA AUREA PINHEIRO DE ALMEIDA
; SILVEIRA, ANTÔNIO LAFFAYETE PIRES DA
; MESSIAS, MARILUCE REZENDE
; MARQUES, MARCIA C.M.
; PADIAL, ANDRE ANDRIAN
; MARQUES, RENATO
; BITAR, YOUSZEF O.C.
; SILVEIRA, MARCOS
; MORATO, ELDER FERREIRA
; PAGOTTO, RUBIANI DE CÁSSIA
; STRUSSMANN, CHRISTINE
; MACHADO, RICARDO BOMFIM
; AGUIAR, LUDMILLA MOURA DE SOUZA
; FERNANDES, GERALDO WILSON
; OKI, YUMI
; NOVAIS, SAMUEL
; FERREIRA, GUILHERME BRAGA
; BARBOSA, FLÁVIA RODRIGUES
; OCHOA, ANA C.
; MANGIONE, ANTONIO M.
; GATICA, AILIN
; CARRIZO, MARÍA CELINA
; RETTA, LUCÍA MARTINEZ
; JOFRÉ, LAURA E.
; CASTILLO, LUCIANA L.
; NEME, ANDREA M.
; RUEDA, CARLA
; TOLEDO, JOSÉ JULIO DE
; GRELLE, CARLOS EDUARDO VIVEIROS
; VALE, MARIANA M.
; VIEIRA, MARCUS VINICIUS
; CERQUEIRA, RUI
; HIGASHIKAWA, EMÍLIO MANABU
; MENDONÇA, FERNANDO PEREIRA DE
; GUERREIRO, QUÊZIA LEANDRO DE MOURA
; BANHOS, AUREO
; HERO, JEAN-MARC
; KOBLITZ, RODRIGO
; COLLEVATTI, ROSANE GARCIA
; SILVEIRA, LUÍS FÁBIO
; VASCONCELOS, HERALDO L.
; VIEIRA, CECÍLIA RODRIGUES
; COLLI, GUARINO RINALDI
; CECHIN, SONIA ZANINI
; SANTOS, TIAGO GOMES DOS
; FONTANA, CARLA S.
; JARENKOW, JOÃO A.
; MALABARBA, LUIZ R.
; RUEDA, MARTA P.
; ARAUJO, PUBLIO A.
; PALOMO, LUCAS
; ITURRE, MARTA C.
; BERGALLO, HELENA GODOY
; MAGNUSSON, WILLIAM E.
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Anais da Academia Brasileira de Ciências
- Métricas do periódico
Abstract The Program for Biodiversity Research (PPBio) is an innovative program designed to integrate all biodiversity research stakeholders. Operating since 2004, it has installed long-term ecological research sites throughout Brazil and its logic has been applied in some other southern-hemisphere countries. The program supports all aspects of research necessary to understand biodiversity and the processes that affect it. There are presently 161 sampling sites (see some of them at Supplementary Appendix), most of which use a standardized methodology that allows comparisons across biomes and through time. To date, there are about 1200 publications associated with PPBio that cover topics ranging from natural history to genetics and species distributions. Most of the field data and metadata are available through PPBio web sites or DataONE. Metadata is available for researchers that intend to explore the different faces of Brazilian biodiversity spatio-temporal variation, as well as for managers intending to improve conservation strategies. The Program also fostered, directly and indirectly, local technical capacity building, and supported the training of hundreds of undergraduate and graduate students. The main challenge is maintaining the long-term funding necessary to understand biodiversity patterns and processes under pressure from global environmental changes.
https://doi.org/10.1590/0001-3765202120201604
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4.
Habitat and community structure modulate fish interactions in a neotropical clearwater river
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RESUMO Interações realizadas por peixes podem modular a diversidade e assegurar a estabilidade de comunidades em rios tropicais. Apesar dessa importância, poucos estudos relacionam as interações ecológicas com as características do habitat, estrutura da comunidade e atributos das espécies de peixes. Por meio de filmagens remotas subaquáticas nós verificamos como a pressão alimentar dos peixes sobre a comunidade bentônica e as interações agonísticas entre peixes são influenciadas por essas características do habitat e da comunidade em um rio tropical de água clara na região Centro-Oeste do Brasil. Também realizamos censos visuais para estimar a abundância e a biomassa dos peixes e propusemos uma classificação funcional para entender como essas variáveis podem afetar as interações dos peixes. A estrutura da comunidade foi o principal fator que afetou a variação nas interações entre os habitats. A biomassa dos peixes determinou em qual hábitat um peixe se alimentará, enquanto a abundância das espécies determinou com quantas outras espécies elas interagem nas redes de interações agonísticas de cada habitat. Habitats específicos não são apenas ocupados, mas também utilizados de maneiras distintas pela comunidade de peixes. Nossos resultados demonstram a importância da heterogeneidade de habitats para as interações realizadas pelos peixes em rios tropicais e como a intensidade dessas interações é afetada pela estrutura da comunidade.
ABSTRACT Species interactions can modulate the diversity and enhance the stability of biological communities in aquatic ecosystems. Despite previous efforts to describe fish interactions in tropical rivers, the role of habitat characteristics, community structure, and trophic traits over these interactions is still poorly understood. To investigate among-habitat variation in substratum feeding pressure and agonistic interactions between fishes, we used remote underwater videos in three habitats of a clearwater river in the Central Western, Brazil. We also performed visual surveys to estimate the abundance and biomass of fishes and proposed a trophic classification to understand how these variables can affect fish interactions. Community structure was the main factor affecting the variation in the interactions among the habitats. Biomass was the main variable determining which habitat a fish will feed on, while species abundance determined with how many other species it will interact in the agonistic interaction networks for each habitat. Specific habitats are not only occupied, but also used in distinct ways by the fish community. Overall, our results demonstrate the importance of the heterogeneity of habitats in tropical rivers for the interactions performed by the fishes and how the intensity of these interactions is affected by community structure.
https://doi.org/10.1590/1982-0224-2019-0127
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5.
Sympatho-Vagal Imbalance is Associated with Sarcopenia in Male Patients with Heart Failure
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Fonseca, Guilherme Wesley Peixoto da
; Santos, Marcelo Rodrigues dos
; Souza, Francis Ribeiro de
; Costa, Marcel Jose A. da
; Haehling, Stephan von
; Takayama, Liliam
; Pereira, Rosa Maria R.
; Negrão, Carlos Eduardo
; Anker, Stefan D.
; Alves, Maria Janieire de Nazaré Nunes
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Arquivos Brasileiros de Cardiologia
- Métricas do periódico
Resumo Fundamento: Hiperatividade simpática de repouso e uma reativação parassimpática diminuída pós-exercício têm sido descritas em pacientes com insuficiência cardíaca (IC). No entanto, a associação dessas alterações autonômicas em pacientes com IC sarcopênicos ainda não são conhecidas. Objetivo: O objetivo deste estudo foi avaliar o impacto da modulação autonômica sobre sarcopenia em pacientes com IC do sexo masculino. Métodos: Foram estudados 116 pacientes com IC e fração de ejeção ventricular esquerda inferior a 40%. Todos os pacientes foram submetidos ao teste de exercício cardiopulmonar máximo. A frequência cardíaca máxima foi registrada, e o delta de recuperação da frequência cardíaca (∆RFC) foi avaliado no primeiro e no segundo minuto após o exercício. A atividade nervosa simpática muscular (ANSM) foi registrada por microneurografia. A Absorciometria Radiológica de Dupla Energia foi usada para medir composição cpororal, e a sarcopenia definida como a soma da massa muscular apendicular (MMA) dividida pela altura em metros ao quadrado e força da mão. Resultados: A sarcopenia foi identificada em 33 pacientes (28%). Os pacientes com sarcopenia apresentaram maior ANSM que aqueles sem sarcopenia - 47 (41-52) vs. 40 (34-48) impulsos (bursts)/min, p = 0,028). Pacientes sarcopênicos apresentaram ∆RFC mais baixo no primeiro [15 (10-21) vs. 22 (16-30) batimentos/min, p < 0,001) e no segundo [25 (19-39) vs. 35 (24-48) batimentos/min, p = 0,017) minuto que pacientes não sarcopênicos. Observou-se uma correlação positiva entre a MMA e a ANSM (r = -0,29; p = 0,003). Conclusão: Um desequilíbrio simpático-vagal parece estar associado com sarcopenia em pacientes com IC do sexo masculino. Esses resultados destacam a importância de uma abordagem terapêutica em pacientes com perda muscular e fluxo simpático periférico aumentado.
Abstract Background: Resting sympathetic hyperactivity and impaired parasympathetic reactivation after exercise have been described in patients with heart failure (HF). However, the association of these autonomic changes in patients with HF and sarcopenia is unknown. Objective: The aim of this study was to evaluate the impact of autonomic modulation on sarcopenia in male patients with HF. Methods: We enrolled 116 male patients with HF and left ventricular ejection fraction < 40%. All patients underwent a maximal cardiopulmonary exercise testing. Maximal heart rate was recorded and delta heart rate recovery (∆HRR) was assessed at 1st and 2nd minutes after exercise. Muscle sympathetic nerve activity (MSNA) was recorded by microneurography. Dual-energy X-ray absorptiometry was used to measure body composition and sarcopenia was defined by the sum of appendicular lean muscle mass (ALM) divided by height in meters squared and handgrip strength. Results: Sarcopenia was identified in 33 patients (28%). Patients with sarcopenia had higher MSNA than those without (47 [41-52] vs. 40 [34-48] bursts/min, p = 0.028). Sarcopenic patients showed lower ∆HRR at 1st (15 [10-21] vs. 22 [16-30] beats/min, p < 0.001) and 2nd min (25 [19-39] vs. 35 [24-48] beats/min, p = 0.017) than non-sarcopenic. There was a positive correlation between ALM and ∆HRR at 1st (r = 0.26, p = 0.008) and 2nd min (r = 0.25, p = 0.012). We observed a negative correlation between ALM and MSNA (r = -0.29, p = 0.003). Conclusion: Sympatho-vagal imbalance seems to be associated with sarcopenia in male patients with HF. These results highlight the importance of a therapeutic approach in patients with muscle wasting and increased peripheral sympathetic outflow.
https://doi.org/10.5935/abc.20190061
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6.
Selection of alfalfa genotypes for resistance to the foliar pathogen Curvularia geniculata
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ÁVILA, MARIANA R.
; DALL’AGNOL, MIGUEL
; MARTINELLI, JOSÉ A.
; SILVA, GERARDA B.P. DA
; BREMM, CAROLINA
; NUNES, TAMYRIS
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- Métricas do periódico
ABSTRACT Foliar diseases impose severe restrictions on the persistence and productivity of Medicago sativa, both of which may be increased by developing disease resistant and more competitive genotypes that can improve pasture quality. We found Curvularia geniculata as the principal alfalfa foliar pathogen in the Brazilian state of Rio Grande do Sul (RS). Growth chamber experiments evaluated the resistance of alfalfa genotypes ‘E1C4’, ‘CPPSul’, ‘ABT 805’ and ‘CUF-101’ to C. geniculata as compared the control ‘Crioula’ genotype. These genotypes were also evaluated in field trials at a sea level site in Eldorado do Sul in central RS and at two sites £200 m above sea level, one in Bagé municipality in south west RS and the other at a farm near the town of Alto Feliz in north east RS. Plants were spray-inoculated with 1.6 x 106 ml-1 of C. geniculata spores and visually evaluated for leaf damage 14 days later. The C. geniculata infection rates varied from zero to 100%. Alfalfa persistence and forage mean dry mass (DM) production at the Eldorado site were measured during different seasons from November 2013 to January 2015 by calculating the incidence of invasive plants and morphologically separating leaves from stems and calculating both leaf and stem DM. Data were analysed using mixed statistical models. The best results for persistence and forage DM were shown by the ‘CPPSul’ genotypes (DM = 16,600 kg ha-1) and ‘Crioula’ (DM = 15,750 kg ha-1). These two genotypes will be used for subsequent investigations and selection cycles.
https://doi.org/10.1590/0001-3765201720170005
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7.
Ocorrência e eficiência do microssimbionte de Sesbania virgata(Cav.) Pers. em função das propriedadesdo solo
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Florentino, Ligiane A.
; Nunes, Ana Paula P.
; V.Rezende, Adauton
; Mantovani, José R.
; Souza, Flávia R. C.
; Junqueira, Gustavo A.
.
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A leguminosa Sesbania virgata apresenta grande importância económica e ecológica, podendo ser utilizada em áreas de recuperação de solos degradados e reflorestamento de matas ciliares. S. virgata estabelece simbiose específica e eficiente com rizóbios da espécie Azorhizobium doebereinerae. O objetivo deste trabalho foi verificar a influência do pH e saturação por bases (V%) na sobrevivência de A. doebereinerae no solo e no estabelecimento da simbiose com S. virgata. O ensaio foi instalado em estufa em vasos contendo 5,5 dm³ de solo apresentando diferentes valores de V%: 22, 30, 40, 50, 60 e 70%. Observou-se a presença de A. doebereinerae no solo somente nos tratamentos que apresentaram valores de V% superiores a 50. Em relação à simbiose, foi verificado que a inoculação com A. doebereinerae em S. virgata não é eficiente em solos que apresentam valores de pH e V% inferiores a 5,8 e 50, respectivamente.
The legume Sesbaniavirgatahasa large economic and ecological importance and can be used in the recovery of areas with degraded soils and reforestation of riparian forests. S. virgata establishes specific and effective symbiosis with rhizobia species Azorhizobium doebereinerae. The objective of this study was to determine the influence of pH and base saturation (V%) on the survival of A. doebereinerae in the soil and in the establishment of the symbiosis with S. virgata. The experiment was conducted in a greenhouse in pots containing 5.5 dm³ of soil with different values of V%: 22, 30, 40, 50, 60 and 70%. It was observed that A. doebereinerae was only present in treatments that showed values of base saturation greater than 50%. In relation to the symbiosis, it has been found that the inoculation of S. virgata with A. doebereinerae is not effective in soils with pH and V(%) values below 5.8and 50, respectively.
https://doi.org/10.19084/RCA15055
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8.
Update of the Brazilian floristic list of Algae and Cyanobacteria
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Menezes, Mariângela
; Bicudo, Carlos E. M.
; Moura, Carlos W. N.
; Alves, Aigara M.
; Santos, Alana A.
; Pedrini, Alexandre de G.
; Araújo, Andréa
; Tucci, Andrea
; Fajar, Aurelio
; Malone, Camila
; Kano, Cecília H.
; Sant'Anna, Célia L.
; Branco, Ciro Z.
; Odebrecht, Clarisse
; Peres, Cleto K.
; Neuhaus, Emanuel B.
; Eskinazi-Leça, Enide
; Aquino, Eveline
; Nauer, Fabio
; Santos, Gabriel N.
; Amado Filho, Gilberto M.
; Lyra, Goia M.
; Borges, Gyslaine C.P.
; Costa, Iara O.
; Nogueira, Ina de S.
; Oliveira, Ivania B.
; Paula, Joel. C.de
; Nunes, José M. de C.
; Lima, Jucicleide C.
; Santos, Kleber R.S.
; Ferreira, Leandro C.
; Gestinari, Lísia M.S.
; Cardoso, Luciana S.
; Figueiredo, Marcia A.O.
; Silva, Marcos H.
; Barreto, Maria B.B.B.
; Henriques, Maria C.O.
; Cunha, Maria da G.G.S.
; Bandeira-Pedrosa, Maria E.
; Oliveira-Carvalho, Maria F.
; Széchy, Maria T.M.
; Azevedo, Maria T.P.
; Oliveira, Mariana C. de
; Cabezudo, Mariê M.
; Santiago, Marilene F.
; Bergesh, Marli
; Fujii, Mutuê T.
; Bueno, Norma C.
; Necchi Jr., Orlando
; Jesus, Priscila B.
; Bahia, Ricardo G.
; Khader, Samir
; Alves-da-Silva, Sandra M.
; Guimarães, Silvia M.P.B.
; Pereira, Sonia M.B.
; Caires, Taiara A.
; Meurer, Thamis
; Cassano, Valéria
; Werner, Vera R.
; Gama Jr., Watson A. da
; Silva, Weliton J. da
.
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Resumo Apresenta-se uma síntese atualizada de informações sobre algas no Brasil objetivando refinar os dados reunidos até o presente, bem como avaliar os avanços sobre o conhecimento da diversidade de algas no país desde a publicação do Catálogo de Plantas e Fungos do Brasil. Os resultados de 2015 mostraram um acréscimo de 1.250 espécies (35.7%) a um total de 4.747 em relação a 2010. As classes mais diversas em número de espécies foram Bacillariophyceae, Conjugatophyceae, Florideophyceae, Cyanophyceae, Dinophyceae e Euglenophyceae. Bacillariophyceae e Cyanophyceae tiveram o maior acréscimo de espécies no intervalo de cinco anos. A região Sudeste e Sul foram as mais diversas, porém, as regiões Nordeste com os estados do Piauí e Sergipe e Centro-Oeste com os estados de Mato Grosso, Goiás e Distrito Federal destacaram-se no cenário da biodiversidade nacional. Apesar da escassez de taxonomistas e da infraestrutura limitada, os resultados obtidos evidenciaram um avanço significativo no conhecimento da diversidade de algas no país nesse período de cinco anos, iniciando uma mudança quanto as diferenças geográficas regionais.
Abstract An updated synthesis of cyanobacteria and algae information is presented for Brazil aiming to refine the data gathered to date and evaluate the progress of the biodiversity knowledge about these organisms in the country since the publication of the Catálogo de Plantas e Fungos do Brasil. The results of 2015 showed an increase of 1,250 species (35.7%) when compared to 2010, reaching a total of 4,747 species. The most diverse classes in species number were the Bacillariophyceae, Conjugatophyceae, Florideophyceae, Cyanophyceae, Dinophyceae and Euglenophyceae. Bacillariophyceae and Cyanophyceae had the highest increase in species number in the five-year interval. The Southeast and South regions were the most diverse, however, the Northeast, with the states of Piauí and Sergipe, and the Central-west region, with Mato Grosso, Goiás and Distrito Federal, also stood out in the national algal biodiversity scenario. Despite the shortage of taxonomists and limited infrastructure, the results showed a significant improvement in the knowledge regarding the diversity of cyanobacteria and algae in the country during the study period, starting to even out regional geographical differences caused by subsampling.
https://doi.org/10.1590/2175-7860201566408
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9.
Growing knowledge: an overview of Seed Plant diversity in Brazil
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Zappi, Daniela C.
; Filardi, Fabiana L. Ranzato
; Leitman, Paula
; Souza, Vinícius C.
; Walter, Bruno M.T.
; Pirani, José R.
; Morim, Marli P.
; Queiroz, Luciano P.
; Cavalcanti, Taciana B.
; Mansano, Vidal F.
; Forzza, Rafaela C.
; Abreu, Maria C.
; Acevedo-Rodríguez, Pedro
; Agra, Maria F.
; Almeida Jr., Eduardo B.
; Almeida, Gracineide S.S.
; Almeida, Rafael F.
; Alves, Flávio M.
; Alves, Marccus
; Alves-Araujo, Anderson
; Amaral, Maria C.E.
; Amorim, André M.
; Amorim, Bruno
; Andrade, Ivanilza M.
; Andreata, Regina H.P.
; Andrino, Caroline O.
; Anunciação, Elisete A.
; Aona, Lidyanne Y.S.
; Aranguren, Yani
; Aranha Filho, João L.M.
; Araújo, Andrea O.
; Araújo, Ariclenes A.M.
; Araújo, Diogo
; Arbo, María M.
; Assis, Leandro
; Assis, Marta C.
; Assunção, Vivian A.
; Athiê-Souza, Sarah M.
; Azevedo, Cecilia O.
; Baitello, João B.
; Barberena, Felipe F.V.A.
; Barbosa, Maria R.V.
; Barros, Fábio
; Barros, Lucas A.V.
; Barros, Michel J.F.
; Baumgratz, José F.A.
; Bernacci, Luis C.
; Berry, Paul E.
; Bigio, Narcísio C.
; Biral, Leonardo
; Bittrich, Volker
; Borges, Rafael A.X.
; Bortoluzzi, Roseli L.C.
; Bove, Cláudia P.
; Bovini, Massimo G.
; Braga, João M.A.
; Braz, Denise M.
; Bringel Jr., João B.A.
; Bruniera, Carla P.
; Buturi, Camila V.
; Cabral, Elza
; Cabral, Fernanda N.
; Caddah, Mayara K.
; Caires, Claudenir S.
; Calazans, Luana S.B.
; Calió, Maria F.
; Camargo, Rodrigo A.
; Campbell, Lisa
; Canto-Dorow, Thais S.
; Carauta, Jorge P.P.
; Cardiel, José M.
; Cardoso, Domingos B.O.S.
; Cardoso, Leandro J.T.
; Carneiro, Camila R.
; Carneiro, Cláudia E.
; Carneiro-Torres, Daniela S.
; Carrijo, Tatiana T.
; Caruzo, Maria B.R.
; Carvalho, Maria L.S.
; Carvalho-Silva, Micheline
; Castello, Ana C.D.
; Cavalheiro, Larissa
; Cervi, Armando C.
; Chacon, Roberta G.
; Chautems, Alain
; Chiavegatto, Berenice
; Chukr, Nádia S.
; Coelho, Alexa A.O.P.
; Coelho, Marcus A.N.
; Coelho, Rubens L.G.
; Cordeiro, Inês
; Cordula, Elizabeth
; Cornejo, Xavier
; Côrtes, Ana L.A.
; Costa, Andrea F.
; Costa, Fabiane N.
; Costa, Jorge A.S.
; Costa, Leila C.
; Costa-e-Silva, Maria B.
; Costa-Lima, James L.
; Cota, Maria R.C.
; Couto, Ricardo S.
; Daly, Douglas C.
; De Stefano, Rodrigo D.
; De Toni, Karen
; Dematteis, Massimiliano
; Dettke, Greta A.
; Di Maio, Fernando R.
; Dórea, Marcos C.
; Duarte, Marília C.
; Dutilh, Julie H.A.
; Dutra, Valquíria F.
; Echternacht, Lívia
; Eggers, Lilian
; Esteves, Gerleni
; Ezcurra, Cecilia
; Falcão Junior, Marcus J.A.
; Feres, Fabíola
; Fernandes, José M.
; Ferreira, D.M.C.
; Ferreira, Fabrício M.
; Ferreira, Gabriel E.
; Ferreira, Priscila P.A.
; Ferreira, Silvana C.
; Ferrucci, Maria S.
; Fiaschi, Pedro
; Filgueiras, Tarciso S.
; Firens, Marcela
; Flores, Andreia S.
; Forero, Enrique
; Forster, Wellington
; Fortuna-Perez, Ana P.
; Fortunato, Reneé H.
; Fraga, Cléudio N.
; França, Flávio
; Francener, Augusto
; Freitas, Joelcio
; Freitas, Maria F.
; Fritsch, Peter W.
; Furtado, Samyra G.
; Gaglioti, André L.
; Garcia, Flávia C.P.
; Germano Filho, Pedro
; Giacomin, Leandro
; Gil, André S.B.
; Giulietti, Ana M.
; A.P.Godoy, Silvana
; Goldenberg, Renato
; Gomes da Costa, Géssica A.
; Gomes, Mário
; Gomes-Klein, Vera L.
; Gonçalves, Eduardo Gomes
; Graham, Shirley
; Groppo, Milton
; Guedes, Juliana S.
; Guimarães, Leonardo R.S.
; Guimarães, Paulo J.F.
; Guimarães, Elsie F.
; Gutierrez, Raul
; Harley, Raymond
; Hassemer, Gustavo
; Hattori, Eric K.O.
; Hefler, Sonia M.
; Heiden, Gustavo
; Henderson, Andrew
; Hensold, Nancy
; Hiepko, Paul
; Holanda, Ana S.S.
; Iganci, João R.V.
; Imig, Daniela C.
; Indriunas, Alexandre
; Jacques, Eliane L.
; Jardim, Jomar G.
; Kamer, Hiltje M.
; Kameyama, Cíntia
; Kinoshita, Luiza S.
; Kirizawa, Mizué
; Klitgaard, Bente B.
; Koch, Ingrid
; Koschnitzke, Cristiana
; Krauss, Nathália P.
; Kriebel, Ricardo
; Kuntz, Juliana
; Larocca, João
; Leal, Eduardo S.
; Lewis, Gwilym P.
; Lima, Carla T.
; Lima, Haroldo C.
; Lima, Itamar B.
; Lima, Laíce F.G.
; Lima, Laura C.P.
; Lima, Leticia R.
; Lima, Luís F.P.
; Lima, Rita B.
; Lírio, Elton J.
; Liro, Renata M.
; Lleras, Eduardo
; Lobão, Adriana
; Loeuille, Benoit
; Lohmann, Lúcia G.
; Loiola, Maria I.B.
; Lombardi, Julio A.
; Longhi-Wagner, Hilda M.
; Lopes, Rosana C.
; Lorencini, Tiago S.
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; Lovo, Juliana
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; Lucas, Eve
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; Maas, Paul
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Resumo Um levantamento atualizado das plantas com sementes e análises relevantes acerca desta biodiversidade são apresentados. Este trabalho se iniciou em 2010 com a publicação do Catálogo de Plantas e Fungos e, desde então vem sendo atualizado por mais de 430 especialistas trabalhando online. O Brasil abriga atualmente 32.086 espécies nativas de Angiospermas e 23 espécies nativas de Gimnospermas e estes novos dados mostram um aumento de 3% da riqueza em relação a 2010. A Amazônia é o Domínio Fitogeográfico com o maior número de espécies de Gimnospermas, enquanto que a Floresta Atlântica possui a maior riqueza de Angiospermas. Houve um crescimento considerável no número de espécies e nas taxas de endemismo para a maioria dos Domínios (Caatinga, Cerrado, Floresta Atlântica, Pampa e Pantanal), com exceção da Amazônia que apresentou uma diminuição de 2,5% de endemicidade. Entretanto, a maior parte das plantas com sementes que ocorrem no Brasil (57,4%) é endêmica deste território. A proporção de formas de vida varia de acordo com os diferentes Domínios: árvores são mais expressivas na Amazônia e Floresta Atlântica do que nos outros biomas, ervas são dominantes no Pampa e as lianas apresentam riqueza expressiva na Amazônia, Floresta Atlântica e Pantanal. Este trabalho não só quantifica a biodiversidade brasileira, mas também indica as lacunas de conhecimento e o desafio a ser enfrentado para a conservação desta flora.
Abstract An updated inventory of Brazilian seed plants is presented and offers important insights into the country's biodiversity. This work started in 2010, with the publication of the Plants and Fungi Catalogue, and has been updated since by more than 430 specialists working online. Brazil is home to 32,086 native Angiosperms and 23 native Gymnosperms, showing an increase of 3% in its species richness in relation to 2010. The Amazon Rainforest is the richest Brazilian biome for Gymnosperms, while the Atlantic Rainforest is the richest one for Angiosperms. There was a considerable increment in the number of species and endemism rates for biomes, except for the Amazon that showed a decrease of 2.5% of recorded endemics. However, well over half of Brazillian seed plant species (57.4%) is endemic to this territory. The proportion of life-forms varies among different biomes: trees are more expressive in the Amazon and Atlantic Rainforest biomes while herbs predominate in the Pampa, and lianas are more expressive in the Amazon, Atlantic Rainforest, and Pantanal. This compilation serves not only to quantify Brazilian biodiversity, but also to highlight areas where there information is lacking and to provide a framework for the challenge faced in conserving Brazil's unique and diverse flora.
https://doi.org/10.1590/2175-7860201566411
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Effects of therapeutic approach on the neonatal evolution of very low birth weight infants with patent ductus arteriosus
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Sadeck, Lilian S.R.
; Leone, Cléa R.
; Procianoy, Renato S.
; Guinsburg, Ruth
; Marba, Sergio T.M.
; Martinez, Francisco E.
; Rugolo, Ligia M.S.S.
; Moreira, M. Elisabeth L.
; Fiori, Renato M.
; Ferrari, Ligia L.
; Menezes, Jucille A.
; Venzon, Paulyne S.
; Abdallah, Vânia Q.S.
; Duarte, José Luiz M.B.
; Nunes, Marynea V.
; Anchieta, Leni M.
; Alves Filho, Navantino
.
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OBJETIVO: Analisar os efeitos da terapêutica adotada para o canal arterial (CA) em recém-nascidos (RN) < 1.000gadmitidos em unidades neonatais (UN) da Rede Brasileira de Pesquisas Neonatais (RBPN), sobre os desfechos: óbito, displasia broncopulmonar (DBP), hemorragia intraventricular grave (HIVIII/IV), retinopatia da prematuridade cirúrgica (ROPcir), enterocolite necrosante cirúrgica (ECNcir) e o desfecho combinado óbito e DBP. MÉTODOS: Estudo multicêntrico, de coorte, coleta de dados retrospectiva, incluindo RN de 16 UN da RBPN de 01/01/2010 a 31/12/2011, PN < 1.000 g, idade gestacional (IG) < 33 semanas e diagnóstico ecocardiográfico de PCA. Excluídos: óbitos ou transferências até o terceiro dia de vida, infecções congênitas ou malformações. Grupos:G1 - conservadora (sem intervenção medicamentosa ou cirúrgica), G2 - farmacológica (indometacina ou ibuprofeno) e G3 - cirúrgico (com ou sem tratamento farmacológico anterior). Analisou-se: uso de esteroide antenatal, parto cesárea, PN, IG, Apgar5' < 4, sexo masculino, SNAPPE II, síndrome do dDesconforto respiratório (SDR), sepse tardia, ventilação mecânica (VM), surfactante < 2 horas de vida, tempo de VM e os desfechos: óbito, dependência de oxigênio com 36 semanas (DBP36s), HIV III/IV, ROPcir, ECNcir e óbito/DBP36s. Estatística: Teste t-Student, Qui-Quadrado ou teste Exato de Fisher. Testes de Regressão Binária Logística e Regressão Múltipla Stepwise Backward. MedCalc (Medical Calculator) software, versão 12.1.4.0.p < 0,05. RESULTADOS: Foram selecionados 1.097 RN e 494 foram incluídos: G1-187 (37,8%), G2-205 (41,5%) e G3-102 (20,6%). Verificou-se: maior mortalidade (51,3%) no G1 e menor no G3(14,7%); maior frequência DBP36s (70,6%) e ROPcir (23,5%) no G3; maior frequência de óbito/DBP36s no G2 (58,0%). As abordagens farmacológica (OR-0,29; 95%, IC-0,14-0,62) e conservadora (OR-0,34; 95%, IC- 0,14-0,79) foram protetoras somente para o desfecho óbito/DBP36sem. CONCLUSÃO: Em RN com PCA, a abordagem conservadora relacionou-se à maior mortalidade, a cirúrgica à ocorrência de DBP36s e ROPcir., enquanto o tratamento farmacológico mostrou-se protetor para o desfecho óbito/DBP36sem.
OBJECTIVE: To analyze the effects of treatment approach on the outcomes of newborns (birth weight [BW] < 1,000 g) with patent ductus arteriosus (PDA), from the Brazilian Neonatal Research Network (BNRN) on: death, bronchopulmonary dysplasia (BPD), severe intraventricular hemorrhage (IVH III/IV), retinopathy of prematurity requiring surgical (ROPsur), necrotizing enterocolitis requiring surgery (NECsur), and death/BPD. METHODS: This was a multicentric cohort study, retrospective data collection, including newborns (BW < 1000 g) with gestational age (GA) < 33 weeks and echocardiographic diagnosis of PDA, from 16 neonatal units of the BNRN from January 1, 2010 to Dec 31, 2011. Newborns who died or were transferred until the third day of life, and those with presence of congenital malformation or infection were excluded. Groups: G1 - conservative approach (without treatment), G2 - pharmacologic (indomethacin or ibuprofen), G3 - surgical ligation (independent of previous treatment). Factors analyzed: antenatal corticosteroid, cesarean section, BW, GA, 5 min. Apgar score < 4, male gender, Score for Neonatal Acute Physiology Perinatal Extension (SNAPPE II), respiratory distress syndrome (RDS), late sepsis (LS), mechanical ventilation (MV), surfactant (< 2 h of life), and time of MV. Outcomes: death, O2 dependence at 36 weeks (BPD36wks), IVH III/IV, ROPsur, NECsur, and death/BPD36wks. Statistics: Student's t-test, chi-squared test, or Fisher's exact test; Odds ratio (95% CI); logistic binary regression and backward stepwise multiple regression. Software: MedCalc (Medical Calculator) software, version 12.1.4.0. p-values < 0.05 were considered statistically significant. RESULTS: 1,097 newborns were selected and 494 newborns were included: G1 - 187 (37.8%), G2 - 205 (41.5%), and G3 - 102 (20.6%). The highest mortality was observed in G1 (51.3%) and the lowest in G3 (14.7%). The highest frequencies of BPD36wks (70.6%) and ROPsur were observed in G3 (23.5%). The lowest occurrence of death/BPD36wks occurred in G2 (58.0%). Pharmacological (OR 0.29; 95% CI: 0.14-0.62) and conservative (OR 0.34; 95% CI: 0.14-0.79) treatments were protective for the outcome death/BPD36wks. CONCLUSION: The conservative approach of PDA was associated to high mortality, the surgical approach to the occurrence of BPD36wks and ROPsur, and the pharmacological treatment was protective for the outcome death/BPD36wks.
https://doi.org/10.1016/j.jped.2014.04.010
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11.
Management of sorghum anthracnose through diversification of genetic resistance in host population
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The aims of the present study were to assess the efficiency of hybrid sorghum mixtures for the management of anthracnose and analyze the virulence diversity and structure in the pathogen populations developed in response to these mixtures. Proportions of 25%, 50% and 75% of the susceptible BRS304 hybrid in relation to the resistant IG150 hybrid were evaluated. Six weekly evaluations of severity were performed. The data were transformed into area under disease progress curve (AUDPC). The isolates of Colletotrichum sublineolum were sampled from hybrid mixtures cultivated in Sete Lagoas and Indianópolis (Brazil) as well as sorghum fields in Rio Verde and Paraúna (Brazil). The increase in the proportion of the resistant hybrid in the mixtures led to a reduction in anthracnose severity. The most effective proportions were those with 25% and 50% of the susceptible variety blended with the resistant variety. Complex breeds of C. sublineolum predominated in the populations and a reduction in phenotype diversity was observed. This reduction in diversity was attributed to deviations in the degree of polymorphism in relation to virulence. However, the increase in complex breeds did not imply lesser efficiency on the part of the resistant hybrid in conferring protection to the susceptible hybrid.
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12.
Oncogenic osteomalacia: loss of hypophosphatemia might be the key to avoid misdiagnosis
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Chang, Claudia V.
; Conde, Sandro J.
; Luvizotto, Renata A. M.
; Nunes, Vânia S.
; Bonates, Milla C.
; Felicio, Andre C.
; Lindsey, Susan C.
; Moraes, Flávia H.
; Tagliarini, José V.
; Mazeto, Glaucia M. F. S.
; Kopp, Peter
; Nogueira, Célia R.
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Arquivos Brasileiros de Endocrinologia & Metabologia
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A osteomalacia oncogênica é um diagnóstico clínico desafiador, caracterizado pela perda renal de fosfato e baixos níveis de 1,25-di-hidroxivitamina D3, ocorrendo na presença de um tumor produtor de altos níveis de fator de crescimento de fibroblasto 23. No entanto, é possível que se trate muito mais de uma falha de diagnóstico clínico do que propriamente uma doença rara. Os autores relatam o caso de um homem de 42 anos com histórico de fraqueza muscular progressiva por cinco anos e restrição à cadeira de rodas, sem diagnóstico. Seus exames laboratoriais evidenciavam baixos níveis de fósforo. A remoção cirúrgica de um hemangiopericitoma detectado previamente em cavidade nasal levou à resolução completa dos sintomas. Os autores enfatizam que, mesmo com a etiologia já evidenciada, o paciente consultou diversos clínicos no decorrer dos cinco anos até que fossem instituídos o diagnóstico e o tratamento adequados. Arq Bras Endocrinol Metab. 2012;56(8):570-3
Diagnosing oncogenic osteomalacia is still a challenge. The disorder is characterized by osteomalacia caused by renal phosphate wasting and low serum concentration of 1,25-dihydroxyvitamin D3 occurring in the presence of a tumor that produces high levels of fibroblast growth factor 23. However, it is possible that the disease is much more misdiagnosed than rare. We present the case of a 42-year-old man with a long-term history of undiagnosed progressive muscle weakness. His laboratory results mainly showed low serum phosphate. Surgical removal of a nasal hemangiopericytoma that had been diagnosed five years earlier, brought him to a symptom-free condition. Even though knowing the underlying etiology would explain his osteomalacia, the patient sought medical help from countless physicians for five consecutive years, and only after adequate treatment a rewarding outcome was achieved. Arq Bras Endocrinol Metab. 2012;56(8):570-3
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13.
New flavonoids and coumarins from Platymiscium floribundum Vogel
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Veloso, Pérsio A.
; Pimenta, Antonia T. A.
; Francisco M. de, Sousa
; Falcão, Maria José C.
; Gramosa, Nilce V.
; Silva Junior, José Nunes da
; Silveira, Edilberto R.
; Lima, Mary Anne S.
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Journal of the Brazilian Chemical Society
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Dois novos flavonoides, 3,4,10-tri-hidróxi-9-metoxi-pterocarpano and 2',4'-di-hidróxi-4'-metoxi-β-hidroxichalcanonol, foram isolados a partir de Platymiscium floribundum, em adição a homopterocapina, 2',4',4-tri-hidroxichalcona, 7,3',5'-tri-hidroxiflavanona, 7,3'-di-hidróxi-8,5'-di-metoxiisoflavanona, 8-hidróxi-5,6,7-tri-metoxicumarina, 6-hidróxi-7,8-di-metoxicumarina, 6,7,8-tri-metoxicumarina, 6,7-di-metoxicumarina, 8-hidróxi-6,7-di-metoxicumarina, 3β-acetóxi-28-hidróxi-olean-12-eno, 1,2,3-tri-metoxi-5-alilbenzeno, 3,4-di-metoxicinamaldeído, e β-sitosterol e estigmasterol como mistura. A caracterização estrutural de todos os compostos foi estabelecida com base em métodos espectroscópicos, particularmente ressonância magnética nuclear (RMN) 1D e 2D e comparação com dados da literatura.
Two new flavonoids, 3,4,10-trihydroxy-9-methoxypterocarpan and 2',4'-dihydroxy-4-methoxy-b-hydroxychacanonol, were isolated from Platymiscium floribundum, in addition to the homopterocarpin, 2',4',4-trihydroxychalcone, 7,3',5'-trihydroxyflavanone, 7,3'-dihydroxy-8,5'-dimethoxyisoflavanone, 8-hydroxy-5,6,7,-trimethoxycoumarin, 6-hydroxy-7,8-dimethoxycoumarin, 6,7,8-trimethoxycoumarin, 6,7-dimethoxycoumarin, 8-hydroxy-6,7-dimethoxycoumarin, 3β-acetoxy-28-hydroxyolean-12-ene, 1,2,3-trimethoxy-5-allyl-benzene, 3,4-dimethoxycinnamaldehyde, and β-sitosterol and stigmasterol as a mixture. Structural characterization of all compounds was established on the basis of spectroscopic methods, particularly 1D and 2D nuclear magnetic resonance (NMR) and comparison with data from literature.
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14.
Effect of ethyl acetate extract from husk fiber water of Cocos nucifera in Leishmania braziliensis infected hamsters
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Freitas, José C. C.
; Nunes-Pinheiro, Diana C. S.
; Pessoa, Adriana W.P.
; Silva, Luis C. R.
; Girão, Virgínia C. C.
; Lopes-Neto, Belarmino E.
; Agostinho, Michelle S.
; Abreu, Cyntia R. A.
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Revista Brasileira de Farmacognosia
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The objective of this study was to evaluate the treatment with ethyl acetate extract (EAE) from husk fiber water of Cocos nucifera L., Arecaceae, in L. braziliensis (Lb) infected hamsters. Twelve male hamsters were randomly allocated in three groups (n=4): G1 received only EAE; G2 was infected with Lb only and G3 received EAE after Lb infection. The infection was carried 28 days prior to the treatment with EAE, which was administrated (0.2 mL, 300 mg.kg-1) for 21 consecutive days. Infection was evaluated through skin lesions and infected footpad edema. Haematological evaluation was done on -28th, 0 and 21st days. Imprint footpad and lymph node weight were evaluated on 21st day. Lb infection significantly inhibited the peripheral leukocytes blood. However, neutrophils and lymphocytes values did not have significant alterations. G3 presented eosinophilia in relation to G2. The treatment with EAE did not reduce edema of infected footpad neither weight of drainage lymph node. Infected footpad imprints revealed amastigotes forms and cellular infiltration. Animals from G3 presented skin lesions on 7th day, shown a reduction of these lesions in day 14. Therefore, the treatment with EAE did not alter the etiological agent elimination in these conditions. However, EAE presents a healing activity in this experimental model.
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15.
Aplicação de efluente tratado de suinocultura para diluição de dejeto suíno e remoção de nitrogênio por desnitrificação
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Este trabalho avaliou o efeito da diluição do dejeto de suíno com o efluente tratado a 50% (v/v), com vistas a aumentar a desnitrificação via fornecimento de carbono ao processo. Considerando-se a diluição estudada, a concentração média de N-NO3- na mistura foi de 47,9 + 14,5 mg L-1, e a DQO da mistura, na faixa de 17.543 + 675 mg L-1, resultando numa relação DQO/N-NO3- de 366, extremamente favorável à ocorrência da atividade desnitrificante no tanque de homogeneização da mistura. A concentração de N-NO3- foi reduzida biologicamente a 0,5 mg L-1 (cerca de 1% da concentração inicial). O procedimento testado promoveu, ainda, uma melhora na etapa de separação sólido-líquido, empregando coagulantes naturais, onde foi observado um consumo de tanino inferior ao esperado.
This study evaluated the effect of swine manure dilution with treated effluent up to 50% volumetric ratio of each part, intending to increase the denitrification by carbon feeding to the process. In studied dilution, the range of NO3--N content in the mixture was 47,9 + 14,5 mg L-1 and COD close to 17543 + 675 mg L-1, resulting in favorable denitrification activity on equalization tank due to relation COD/N-NO3- upper to 360. The NO3--N concentration was biologically reduced to 0.5 mg L-1 (around 1% of initial concentration). An improvement in solid-liquid separation efficiency using natural and synthetic organic polymers was also reached in the diluted effluent when compared to the undiluted manure.
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