Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Amazonian Dark Earth and Plant Species from the Amazon Region Contribute to Shape Rhizosphere Bacterial Communities

Texto completo
Autor(es):
Lima, Amanda Barbosa [1] ; Cannavan, Fabiana Souza [1] ; Navarrete, Acacio Aparecido [1] ; Teixeira, Wenceslau Geraldes [2] ; Kuramae, Eiko Eurya [3] ; Tsai, Siu Mui [1]
Número total de Autores: 6
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Ctr Nucl Energy Agr, Lab Cellular & Mol Biol, Piracicaba - Brazil
[2] Brazilian Agr Res Corp EMBRAPA Soils, Rio De Janeiro - Brazil
[3] Netherlands Inst Ecol NIOO KNAW, Dept Microbial Ecol, Wageningen - Netherlands
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: MICROBIAL ECOLOGY; v. 69, n. 4, SI, p. 855-866, MAY 2015.
Citações Web of Science: 23
Resumo

Amazonian Dark Earths (ADE) or Terra Preta de Aindio 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 (T-RFLP) 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. (AU)

Processo FAPESP: 11/51749-6 - Bioindicadores funcionais para monitoramento da qualidade do solo para o manejo sustentável da produção de biomassa em cana-de-açúcar (BIOSQ)
Beneficiário:Tsai Siu Mui
Linha de fomento: Auxílio à Pesquisa - Programa BIOEN - Regular
Processo FAPESP: 11/50914-3 - The microbiome of Amazonian dark earth: structure and function of the microbial communities from rhizosphere and biochar associated to the biogeochemical cycles
Beneficiário:Tsai Siu Mui
Linha de fomento: Auxílio à Pesquisa - Programa BIOTA - Regular