Caracterização morfofisiológica de rizóbios isolados de genótipos silvestres de feijoeiro-comum
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2016-12
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Resumo
This study aimed to characterize, based on the morphology and on the use of carbon sources,
rhizobial isolates obtained from nodules of wild common bean genotypes cultivated on soil samples from the states of
Goiás, Minas Gerais and Paraná. Based on morphological and carbon source use, similarity matrixes were generated to
perform clustering analysis based on the Jaccard index. A total of 523 isolates were obtained with the predominance of
isolates that acidify the culture medium and showed fast growth. Isolates from the soils of Araucária and Prudentópolis
produced a greater amount of mucus than those from Jussara, Nova Veneza, Uberlândia and Unaí soils. The rhizobia
isolates obtained from soils of Goiás and Minas Gerais showed greater phenotypic diversity than those from the soils of
Paraná. Analysis based on the use of different carbon sources revealed that rhizobia isolates obtained from soils of Goiás
have higher metabolic diversity. Overall, the most part of isolates grouped with the reference strains, especially with the
Rhizobium tropici and R. freirei strains used as inoculants for the common bean.
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Phaseolus vulgaris, BNF, Morphological characterization, Carbon sources use
Citação
SAMPAIO, F. B. et al. Morphophysiological characterization of rhizobia isolated from wild genotypes of the common bean . Bioscience Journal, Uberlândia, v. 32, n. 6, p. 1502–1511, 2016. DOI: 10.14393/BJ-v32n6a2016-33084. Disponível em: https://seer.ufu.br/index.php/biosciencejournal/article/view/33084. Acesso em: 11 out. 2024.