Remarkable N2-fixing bacterial diversity detected in rice roots by molecular evolutionary analysis of nifH gene sequences.
AUTOR(ES)
Ueda, T
RESUMO
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.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=176754Documentos Relacionados
- New Nitrogen-Fixing Microorganisms Detected in Oligotrophic Oceans by Amplification of Nitrogenase (nifH) Genes
- New Nitrogen-Fixing Microorganisms Detected in Oligotrophic Oceans by Amplification of Nitrogenase (nifH) Genes
- Activation of the Bradyrhizobium japonicum nifH and nifDK operons is dependent on promoter-upstream DNA sequences.
- Genetic Diversity of nifH Gene Sequences in Paenibacillus azotofixans Strains and Soil Samples Analyzed by Denaturing Gradient Gel Electrophoresis of PCR-Amplified Gene Fragments
- Binding Characteristics of N2-Fixing Bacteria to Cereal Roots †