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J Bacteriol. 1995 Mar;177(5):1414-7.

Remarkable N2-fixing bacterial diversity detected in rice roots by molecular evolutionary analysis of nifH gene sequences.

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1
Department of Agricultural Chemistry, Kyushu University, Fukuoka, Japan.

Abstract

To demonstrate the extent of phylogenetic diversity of diazotrophic bacteria associated with rice roots, we characterized phylogenetically 23 nifH gene sequences obtained by PCR amplification of mixed organism DNA extracted directly from rice roots without culturing the organisms. The analyses document the presence of eight novel NifH types, which appear to be a variety of significant components of the diazotrophic community, dominated mainly by proteobacteria.

PMID:
7868622
PMCID:
PMC176754
[Indexed for MEDLINE]
Free PMC Article
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