| cupriavidus necator isolates are able to fix nitrogen in symbiosis with different legume species. | the aim of the present study was to identify a collection of 35 cupriavidus isolates at the species level and to examine their capacity to nodulate and fix n(2). these isolates were previously obtained from the root nodules of two promiscuous trap species, phaseolus vulgaris and leucaena leucocephala, inoculated with soil samples collected near sesbania virgata plants growing in minas gerais (brazil) pastures. phenotypic and genotypic methods applied for this study were sds-page of whole-cell pr ... | 2012 | 22361568 |
| soybean chlorotic spot virus, a novel begomovirus infecting soybean in brazil. | a novel soybean-infecting begomovirus from brazil was identified in jaíba, in the state of minas gerais, and molecularly characterized. by using rolling-circle amplification-based cloning of viral dnas, three dna-a variants and a cognate dna-b were isolated from infected samples. the dna variants share more than 98 % sequence identity but have less than 89 % identity to other reported begomovirus, the limit for demarcation of new species. in a phylogenetic analysis, both dna-a and dna-b clustere ... | 2013 | 23053525 |
| investigation of sclerotinia sclerotiorum strains variability in brazil. | white mold is a common bean disease caused by the fungus sclerotinia sclerotiorum, resulting in economic losses in brazil and worldwide. lack of knowledge about the population structure of the pathogen makes it difficult to control the disease. the aim of this study was to characterize strains of s. sclerotiorum obtained from ex-perimental and commercial common bean fields in brazil. we analyzed 50 strains of s. sclerotiorum collected at several locations in the state of minas gerais. the strain ... | 2015 | 26125896 |
| investigating phenotypic variability in colletotrichum lindemuthianum populations. | colletotrichum lindemuthianum, causal agent of anthracnose in the common bean, has wide genetic variability. differential bean cultivars and morphological and physiological characteristics were used to analyze 74 isolates of c. lindemuthianum collected in two counties in the state of minas gerais, brazil. six different races were found, with a predominance of race 65 at both locations. isolates were classified according to their sensitivities to the fungicide thiophanate-methyl, normally used in ... | 2012 | 22250759 |