Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.14/14314
Título: Bacterial community variations in an alfalfa-rice rotation system revealed by 16S rRNA gene 454-pyrosequencing
Autor: Lopes, Ana R.
Manaia, C.M.
Nunes, Olga
Palavras-chave: 454-pyrosequencing
Bacterial community
Crop rotation
Rice paddy soil
Data: 2013
Editora: John Wiley & Sons Ltd.
Citação: LOPES, Ana R.; MANAIA, C.M.; NUNES, Olga - Bacterial community variations in an alfalfa-rice rotation system revealed by 16S rRNA gene 454-pyrosequencing. FEMS Microbiology Ecology . ISSN 1574-6941. Vol. 87 (2014), p. 650–663
Resumo: Crop rotation is a practice harmonized with the sustainable rice production. Nevertheless, the implications of this empirical practice are not well characterized, mainly in relation to the bacterial community composition and structure. In this study, the bacterial communities of two adjacent paddy fields in the 3rd and 4th year of the crop rotation cycle and of a nonseeded subplot were characterized before rice seeding and after harvesting, using 454-pyrosequencing of the 16S rRNA gene. Although the phyla Acidobacteria, Proteobacteria, Chloroflexi, Actinobacteria and Bacteroidetes predominated in all the samples, there were variations in relative abundance of these groups. Samples from the 3rd and 4th years of the crop rotation differed on the higher abundance of groups of presumable aerobic bacteria and of presumable anaerobic and acidobacterial groups, respectively. Members of the phylum Nitrospira were more abundant after rice harvest than in the previously sampled period. Rice cropping was positively correlated with the abundance of members of the orders Acidobacteriales and ‘Solibacterales’ and negatively with lineages such as Chloroflexi ‘Ellin6529’. Studies like this contribute to understand variations occurring in the microbial communities in soils under sustainable rice production, based on real-world data.
Peer review: yes
URI: http://hdl.handle.net/10400.14/14314
Aparece nas colecções:CBQF - Artigos em revistas internacionais com Arbitragem / Papers in international journals with Peer-review

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