Data/hora: 01/06/2024 04:23:17

Biblioteca(s): | Embrapa Meio Ambiente.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 2
Data corrente: | 10/01/2011
Data da última atualização: | 10/01/2011
Autoria: | DIAS, A. C. F.; ANDREOTE, F. D.; RIGONATO, J.; FIORE, M. F.; MELO, I. S. de; ARAUJO, W. L.
Afiliação: | Armando C. F. Dias, Centro de Pesquisas Biotecnológicas - USP; Fernando D. Andreote, ESALQ-USP; Janaina Rigonato, CENA-USP; Marli Fátima Fiore, CENA-USP; ITAMAR SOARES DE MELO, CNPMA; Welington Luiz Araújo, Universidade de Mogi das Cruzes.
Título: | The bacterial diversity in a Brazilian non-disturbed mangrove sediment.
Ano de publicação: | 2010
Fonte/Imprenta: | Antonie van Leeuwenhoek, v. 98, n. 4, p. 541-551, 2010.
ISBN: | 10.1007/s10482-010-9471-z.
Idioma: | Inglês
Conteúdo: | The bacterial diversity present in sediments of a well-preserved mangrove in Ilha do Cardoso, located in the extreme south of São Paulo State coastline, Brazil, was assessed using culture-independent molecular approaches (denaturing gradient gel electrophoresis (DGGE) and analysis of 166 sequences from a clone library). The data revealed a bacterial community dominated by Alphaproteobacteria (40.36%of clones), Gammaproteobacteria (19.28% of clones) and Acidobacteria (27.71% of clones), while minor components of the assemblage were affiliated to Betaproteobacteria, Deltaproteobacteria, Firmicutes, Actinobacteria and Bacteroidetes. The clustering and redundancy analysis (RDA) based on DGGE were used to determine factors that modulate the diversity of bacterial communities in mangroves, such as depth, seasonal fluctuations, and locations over a transect area from the sea to the land. Profiles of specific DGGE gels showed that both dominant (universal Bacteria and Alphaproteobacteria) and low-density bacterial communities (Betaproteobacteria and Actinobacteria) are responsive to shifts in environmental factors. The location within the mangrove was determinant for all fractions of the community studied, whereas season was significant for Bacteria, Alphaproteobacteria, and Betaproteobacteria and sample depth determined the diversity of Alphaproteobacteria and Actinobacteria.
Thesagro: | Biodiversidade; Mangue.
Categoria do assunto: | --
Registro original: | Embrapa Meio Ambiente (CNPMA)
Exemplares: | CNPMA - (9526-1) - UPC - SP - PP - AP - PAT 2010 - 2010.00074 - DIS