Bacterial community analysis of the water surface layer from a rice-planted and an unplanted flooded field
Braz. j. microbiol
; 41(2): 411-419, Apr.-June 2010. tab, ilus
Article
em En
| LILACS
| ID: lil-545350
Biblioteca responsável:
BR32.1
ABSTRACT
The bacterial communities in floodwater, from a rice-planted and an unplanted field were characterized at the beginning (flooding stage) and at the end (harvest stage) of the rice cropping cycle. Most probable number estimations and plate counts of aerobic and anaerobic heterotrophic bacteria and of several metabolic bacterial groups (methanogens, sulfate-reducers, anaerobic sulfur and nonsulfur phototrophs, denitrifiers and ammonifiers) were similar in rice and unplanted floodwater at both sampling times. The analysis of denitrifiers and methanogens by fluorescent in situ hybridization revealed a shift in the phylogenetic affiliation only of the former group in the rice-planted floodwater. Terminal restriction fragment length polymorphism of 16S rRNA gene amplicons indicated that the bacterial communities of the rice-planted and unplanted soils were consistently diverse and strongly influenced by the season.
Palavras-chave
Texto completo:
1
Base de dados:
LILACS
Assunto principal:
Oryza
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Bactérias Anaeróbias
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Bactérias Aeróbias
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Sequência de Bases
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Hibridização in Situ Fluorescente
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Fragmentação do DNA
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Inundações
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Água Doce
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Metabolismo
Idioma:
En
Ano de publicação:
2010
Tipo de documento:
Article
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Project document