Restriction of 16S-23S intergenic rDNA for diversity evaluation of Azospirillum amazonense isolated from different Brachiaria spp.
DOI:
https://doi.org/10.1590/S1678-3921.pab2006.v41.7156Keywords:
biological nitrogen fixation, diazotrophic bacteria, microbial ecology, pasturesAbstract
The aim of this work was to study the intra-specific diversity of Azospirillum amazonense isolates and to establish possible influences of different Brachiaria spp. and edaphoclimatic conditions. The characterization of the diversity among the isolates of A. amazonense studied was conducted using restriction analysis of the 16S-23S rDNA intergenic spacer region. The evaluated strains were separated in two groups, defined at 56% of similarity. Brachiaria spp. showed effects on strain diversity. Most part of the isolates from B. decumbens and B. brizantha are inserted in the first group, while B. humidicola isolates concentrate in the second group.Downloads
Published
2006-03-01
How to Cite
Reis Junior, F. B. dos, Reis, V. M., & Teixeira, K. R. dos S. (2006). Restriction of 16S-23S intergenic rDNA for diversity evaluation of <i>Azospirillum amazonense</i> isolated from different <i>Brachiaria</i> spp. Pesquisa Agropecuaria Brasileira, 41(3), 431–438. https://doi.org/10.1590/S1678-3921.pab2006.v41.7156
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Section
MICROBIOLOGY