Mulching and cover crops effects on the soil and rhizosphere-associated bacterial communities in field experiment

Página do item simplificado
dc.creatorFerreira, Enderson Petrônio de Brito
dc.creatorDidonet, Claudia Cristina Garcia Martin
dc.date.accessioned2018-03-29T12:07:52Z
dc.date.available2018-03-29T12:07:52Z
dc.date.issued2012
dc.description.resumoAgricultural sustainability is closely related with the efficient use of natural resources, which are primarily transformed by the action of microorganisms. Soil microorganisms are usually used as early indicators of soil quality since they rapidly respond to changes in soil management. A field experiment was carried out aiming to evaluate the effect of siratro (Macroptylium atropurpureum), bahiagrass (Paspalum notatum) and mulching on the bacterial communities of bulk soil and rhizoplane of siratro and bahiagrass. DNA was extracted directly from soil samples and from bacterial cells of siratro and bahiagrass rhizoplane and analyzed by Denaturing Gradient Gel Electrophoresis (DGGE). Results showed that bacterial communities were affected by both types of cover crop (siratro, bahiagrass and mulch) and the evaluated compartment (soil and rhizoplane). However, the greatest similarity (76%) was observed between bacterial communities of the samples under mulch and bahiagrass rhizoplane. The cluster analysis based on operational taxonomic units (OTU) showed that rare bands were preferentially related to mulch treatment. The diversity of bacterial community of the mulch treatment was 19% and 36% greater than the bacterial communities of siratro and bahiagrass, respectively, as revealed by Shannon-Weaver index. Besides, bacterial community diversity of the soil was 12% greater than that of the rhizoplane. These results indicate a clear effect of the rhizoplane on the selection of the bacterial community, leading to lower diversity index as compared with mulch samples.pt_BR
dc.identifier.citationFERREIRA, E. P. B.; MARTIN-DIDONET, C. C. G. Mulching and cover crops effects on the soil and rhizosphere-associated bacterial communities in field experiment. Journal of Agricultural Science and Technology, Tehran, v. 14, p. 671-681, 2012.pt_BR
dc.identifier.issn1680-7073
dc.identifier.issne- 2345-3737
dc.identifier.urihttp://repositorio.bc.ufg.br/handle/ri/14205
dc.language.isoengpt_BR
dc.publisher.countryOutrospt_BR
dc.publisher.departmentEscola de Agronomia - EA (RG)pt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectBahiagrasspt_BR
dc.subjectPCR-DGGEpt_BR
dc.subjectSimilaritypt_BR
dc.subjectSiratropt_BR
dc.titleMulching and cover crops effects on the soil and rhizosphere-associated bacterial communities in field experimentpt_BR
dc.typeArtigopt_BR

Arquivos

Pacote Original
Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
Artigo - Enderson Petrônio de Brito Ferreira - 2012.pdf
Tamanho:
831.05 KB
Formato:
Adobe Portable Document Format
Baixar
Licença do Pacote
Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Baixar

Coleções

EA - Artigos publicados em periódicos