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Registro Completo |
Biblioteca(s): |
Embrapa Trigo. |
Data corrente: |
24/11/1994 |
Data da última atualização: |
24/11/1994 |
Autoria: |
GOULART, A. C. P.; PAIVA, F. de A.; MESQUITA, A. N. de. |
Título: |
Perdas em trigo (Triticum aestivum) causadas por Pyricularia oryzae. |
Ano de publicação: |
1992 |
Fonte/Imprenta: |
Fitopatologia Brasileira, Brasília, DF, v. 17, n. 1, p. 115-117, abr. 1992. |
Idioma: |
Português |
Categoria do assunto: |
-- |
Marc: |
LEADER 00422naa a2200133 a 4500 001 1822985 005 1994-11-24 008 1992 bl uuuu u00u1 u #d 100 1 $aGOULART, A. C. P. 245 $aPerdas em trigo (Triticum aestivum) causadas por Pyricularia oryzae. 260 $c1992 700 1 $aPAIVA, F. de A. 700 1 $aMESQUITA, A. N. de 773 $tFitopatologia Brasileira, Brasília, DF$gv. 17, n. 1, p. 115-117, abr. 1992.
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Embrapa Trigo (CNPT) |
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Registro Completo
Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
19/11/2014 |
Data da última atualização: |
04/12/2014 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
VARON-LOPEZ, M.; DIAS, A. C. F.; FASANELLA, C. C.; DURRER, A.; MELO, I. S. de; KURAMAE, E. E.; ANDREOTE, F. D. |
Afiliação: |
MARYEIMY VARON-LOPEZ, ESALQ-USP; ARMANDO CAVALCANTE FRANCO DIAS, ESALQ-USP; CRISTIANE CIPOLLA FASANELLA, ESALQ-USP; ADEMIR DURRER, ESALQ-USP; ITAMAR SOARES DE MELO, CNPMA; EIKO EURYA KURAMAE, Netherlands Institute of Ecology; FERNANDO DINI ANDREOTE. |
Título: |
Sulphur-oxidizing and sulphate-reducing communities in Brazilian mangrove sediments. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Environmental Microbiology, Oxford, v. 16, n. 3, p. 845-855, 2014. |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Mangrove soils are anaerobic environments rich in sulphate and organic matter. Although the sulphur cycle is one of the major actors in this ecosystem, little is known regarding the sulphur bacteria communities in mangrove soils. We investigated the abundance, composition and diversity of sulphur-oxidizing (SOB) and sulphate-reducing (SRB) bacteria in sediments from three Brazilian mangrove communities: two contaminated, one with oil (OilMgv) and one with urban waste and sludge (AntMgv), and one pristine (PrsMgv). The community structures were assessed using quantitative real-time polymerase chain reaction (qPCR), polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) and clone libraries, using genes for the enzymes adenosine-5'-phosphosulphate reductase (aprA) and sulphite reductase (Dsr) (dsrB). The abundance for qPCR showed the ratio dsrB/aprA to be variable among mangroves and higher according to the gradient observed for oil contamination in the OilMgv. The PCR-DGGE patterns analysed by Nonmetric Multidimensional Scaling revealed differences among the structures of the three mangrove communities. The clone libraries showed that Betaproteobacteria, Gammaproteobacteria and Deltaproteobacteria were the most abundant groups associated with sulphur cycling in mangrove sediments. We conclude that the microbial SOB and SRB communities in mangrove soils are different in each mangrove forest and that such microbial communities could possibly be used as a proxy for contamination in mangrove forests. MenosAbstract: Mangrove soils are anaerobic environments rich in sulphate and organic matter. Although the sulphur cycle is one of the major actors in this ecosystem, little is known regarding the sulphur bacteria communities in mangrove soils. We investigated the abundance, composition and diversity of sulphur-oxidizing (SOB) and sulphate-reducing (SRB) bacteria in sediments from three Brazilian mangrove communities: two contaminated, one with oil (OilMgv) and one with urban waste and sludge (AntMgv), and one pristine (PrsMgv). The community structures were assessed using quantitative real-time polymerase chain reaction (qPCR), polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) and clone libraries, using genes for the enzymes adenosine-5'-phosphosulphate reductase (aprA) and sulphite reductase (Dsr) (dsrB). The abundance for qPCR showed the ratio dsrB/aprA to be variable among mangroves and higher according to the gradient observed for oil contamination in the OilMgv. The PCR-DGGE patterns analysed by Nonmetric Multidimensional Scaling revealed differences among the structures of the three mangrove communities. The clone libraries showed that Betaproteobacteria, Gammaproteobacteria and Deltaproteobacteria were the most abundant groups associated with sulphur cycling in mangrove sediments. We conclude that the microbial SOB and SRB communities in mangrove soils are different in each mangrove forest and that such microbial communities could possibly be us... Mostrar Tudo |
Thesagro: |
Bactéria; Enxofre; Mangue; Sulfato. |
Thesaurus NAL: |
Mangrove soils; Metabolism; Polluted soils; Sulfate-reducing bacteria; Sulfur. |
Categoria do assunto: |
S Ciências Biológicas |
Marc: |
LEADER 02386naa a2200301 a 4500 001 2000536 005 2014-12-04 008 2014 bl uuuu u00u1 u #d 100 1 $aVARON-LOPEZ, M. 245 $aSulphur-oxidizing and sulphate-reducing communities in Brazilian mangrove sediments.$h[electronic resource] 260 $c2014 520 $aAbstract: Mangrove soils are anaerobic environments rich in sulphate and organic matter. Although the sulphur cycle is one of the major actors in this ecosystem, little is known regarding the sulphur bacteria communities in mangrove soils. We investigated the abundance, composition and diversity of sulphur-oxidizing (SOB) and sulphate-reducing (SRB) bacteria in sediments from three Brazilian mangrove communities: two contaminated, one with oil (OilMgv) and one with urban waste and sludge (AntMgv), and one pristine (PrsMgv). The community structures were assessed using quantitative real-time polymerase chain reaction (qPCR), polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) and clone libraries, using genes for the enzymes adenosine-5'-phosphosulphate reductase (aprA) and sulphite reductase (Dsr) (dsrB). The abundance for qPCR showed the ratio dsrB/aprA to be variable among mangroves and higher according to the gradient observed for oil contamination in the OilMgv. The PCR-DGGE patterns analysed by Nonmetric Multidimensional Scaling revealed differences among the structures of the three mangrove communities. The clone libraries showed that Betaproteobacteria, Gammaproteobacteria and Deltaproteobacteria were the most abundant groups associated with sulphur cycling in mangrove sediments. We conclude that the microbial SOB and SRB communities in mangrove soils are different in each mangrove forest and that such microbial communities could possibly be used as a proxy for contamination in mangrove forests. 650 $aMangrove soils 650 $aMetabolism 650 $aPolluted soils 650 $aSulfate-reducing bacteria 650 $aSulfur 650 $aBactéria 650 $aEnxofre 650 $aMangue 650 $aSulfato 700 1 $aDIAS, A. C. F. 700 1 $aFASANELLA, C. C. 700 1 $aDURRER, A. 700 1 $aMELO, I. S. de 700 1 $aKURAMAE, E. E. 700 1 $aANDREOTE, F. D. 773 $tEnvironmental Microbiology, Oxford$gv. 16, n. 3, p. 845-855, 2014.
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