Data/hora: 01/06/2024 01:58:48

Biblioteca(s): | Embrapa Solos.
Data corrente: | 13/08/2014
Data da última atualização: | 05/01/2017
Autoria: | LIMA, A. B.; CANNAVAN, F. S.; NAVARRETE, A. A.; TEIXEIRA, W. G.; KURAMAE, E. E.; TSAI, S. M.
Afiliação: | Amanda Barbosa Lima, Laboratory of Cellular and Molecular Biology, Center for Nuclear Energy in Agriculture, University of São Paulo.; Fabiana Souza Cannavan, Laboratory of Cellular and Molecular Biology, Center for Nuclear Energy in Agriculture, University of São Paulo.; Acacio Aparecido Navarrete, Laboratory of Cellular and Molecular Biology, Center for Nuclear Energy in Agriculture, University of São Paulo.; WENCESLAU GERALDES TEIXEIRA, CNPS; Eiko Eurya Kuramae, Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW).; Siu Mui Tsai, Laboratory of Cellular and Molecular Biology, Center for Nuclear Energy in Agriculture.
Título: | Amazonian dark earth and plant species from the Amazon region contribute to shape rhizosphere bacterial communities.
Ano de publicação: | 2015
Fonte/Imprenta: | Microbial Ecology, v. 69, n. 4, p. 855-866, May 2015.
DOI: | 10.1007/s00248-014-0472-8
Idioma: | Inglês
Conteúdo: | Amazonian Dark Earths (ADE) or Terra Preta de Índio formed in the past by pre-Columbian populations are highly sustained fertile soils supported by microbial communities that differ from those extant in adjacent soils. These soils are found in the Amazon region and are considered as a model soil when compared to the surrounding and background soils. The aim of this study was to assess the effects of ADE and its surrounding soil on the rhizosphere bacterial communities of two leguminous plant species that frequently occur in the Amazon region in forest sites (Mimosa debilis) and open areas (Senna alata). Bacterial community structure was evaluated using terminal restriction fragment length polymorphism (TRFLP) and bacterial community composition by V4 16S rRNA gene region pyrosequencing. T-RFLP analysis showed effect of soil types and plant species on rhizosphere bacterial community structure. Differential abundance of bacterial phyla, such as Acidobacteria, Actinobacteria, Verrucomicrobia, and Firmicutes, revealed that soil type contributes to shape the bacterial communities. Furthermore, bacterial phyla such as Firmicutes and Nitrospira were mostly influenced by plant species. Plant roots influenced several soil chemical properties, especially when plants were grown in ADE. These results showed that differences observed in rhizosphere bacterial community structure and composition can be influenced by plant species and soil fertility due to variation in soil attributes.
Palavras-Chave: | Comunidade de bactéria de rizosfera; Terra preta de índio.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
Registro original: | Embrapa Solos (CNPS)
Exemplares: | CNPS - (18401-1) - UPC - AP - DD -  -  - 2014.00542 - DIS