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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
19/11/2014 |
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Data da última atualização: |
04/12/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
VARON-LOPEZ, M.; DIAS, A. C. F.; FASANELLA, C. C.; DURRER, A.; MELO, I. S. de; KURAMAE, E. E.; ANDREOTE, F. D. |
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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. |
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Título: |
Sulphur-oxidizing and sulphate-reducing communities in Brazilian mangrove sediments. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Environmental Microbiology, Oxford, v. 16, n. 3, p. 845-855, 2014. |
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Idioma: |
Inglês |
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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 |
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Thesagro: |
Bactéria; Enxofre; Mangue; Sulfato. |
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Thesaurus Nal: |
Mangrove soils; Metabolism; Polluted soils; Sulfate-reducing bacteria; Sulfur. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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| Registros recuperados : 3 | |
| 1. |  | KRZYZANOWSKI, F. C.; HENNING, A. A.; FRANÇA-NETO, J. B.; LOPES, I. O. N.; DÍAZ-ZORITA, M.; COSTA, N. P. Influência do volume de calda para o tratamento de semente de soja sobre o seu desempenho fisiológico. In: CONGRESSO BRASILEIRO DE SOJA, 5.; MERCOSOJA 2009, Goiânia. Resumos... Londrina: Embrapa Soja, 2009. p. 81 , trab. 134. Editado por Adilson de Oliveira Júnior, Odilon Ferreira Saraiva, Clara Beatriz Hoffmann Campo, César de Castro.| Biblioteca(s): Embrapa Soja. |
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| 2. | | KRZYZANOWSKI, F. C.; HENNING, A. A.; FRANCA-NETO, J. B.; LOPES, I. O. N.; DÍAZ-ZORITA, M.; COSTA, N. P. Influência do volume de calda para o tratamento de semente de soja sobre o seu desempenho fisiológico. In: CONGRESSO BRASILEIRO DE SOJA, 5.; MERCOSOJA 2009, Goiânia. Anais... Londrina: Embrapa Soja, 2009. Seção trabalhos, t. 134. 1 CD-ROM. Editado por Adilson de Oliveira Júnior, Odilon Ferreira Saraiva, Clara Beatriz Hoffmann Campo, César de Castro.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
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| 3. | | KRZYZANOWSKI, F. C.; HENNING, A. A.; FRANÇA-NETO, J. B.; LOPES, I. O. N.; DIAZ-ZORITA, M.; COSTA, N. P. da. Desempenho fisiológico de semente de soja em função do volume de calda no seu tratamento In: REUNIÃO DE PESQUISA DE SOJA DA REGIÃO CENTRAL DO BRASIL, 29., 2007, Campo Grande, MS. Resumos... Londrina: Embrapa Soja, 2007. p. 238-241. (Embrapa Soja. Documentos, 287). Organizado por Odilon Ferreira Saraiva, Regina Maria Villas Boas de Campos Leite, Simone Ery Grosskopf.| Tipo: Resumo em Anais de Congresso | Circulação/Nível: -- - -- |
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| Registros recuperados : 3 | |
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