Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/28830
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dc.creatorGuimarães, Amanda Azarias-
dc.creatorFlorentino, Ligiane Aparecida-
dc.creatorAlmeida, Kize Alves-
dc.creatorLebbe, Liesbeth-
dc.creatorSilva, Karina Barroso-
dc.creatorWillems, Anne-
dc.creatorMoreira, Fatima Maria de Souza-
dc.date.accessioned2018-03-13T18:18:10Z-
dc.date.available2018-03-13T18:18:10Z-
dc.date.issued2015-09-
dc.identifier.citationGUIMARÃES, A. A. et al. High diversity of Bradyrhizobium strains isolated from several legume species and land uses in Brazilian tropical ecosystems. Systematic and Applied Microbiology, [Stuttgard], v. 38, n. 6, p. 433-441, Sept. 2015.pt_BR
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0723202015000946#!pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/28830-
dc.description.abstractThe genus Bradyrhizobium stands out among nitrogen-fixing legume-nodulating bacteria because it predominates among the efficient microsymbionts of forest, forage, and green manure legume species, as well as important species of grain legumes, such as soybean, cowpea, and peanut. Therefore, the diversity of Bradyrhizobium strains is a relevant resource from environmental and economic perspectives, and strains isolated from diverse legume species and land uses in Brazilian tropical ecosystems were assessed in this study. To accomplish this, sequences of four housekeeping genes (atpD, dnaK, gyrB, and recA) were individually analysed, with the first three also being considered using multilocus sequence analysis (MLSA). The sensitivity of the strains to different antibiotics, their tolerance to different levels of salinity, and their ability to nodulate soybean plants were also measured. The phylogenetic trees based on each individual gene, and on the concatenated housekeeping genes, revealed several strain clusters separated from any currently described species. The Bradyrhizobium strains studied were generally resistant to antibiotics. All strains were able to grow at salinity levels of up to 0.5% NaCl, whereas only strains UFLA03-142, UFLA03-143, UFLA03-145, and UFLA03-146 grew in the presence of 1% NaCl. Together, the results indicated that some of the strains studied were potential novel species, indicating that the various soils and ecosystems in Brazil may harbour an as yet unknown diversity of rhizobia.pt_BR
dc.languageen_USpt_BR
dc.publisherElsevierpt_BR
dc.rightsrestrictAccesspt_BR
dc.sourceSystematic and Applied Microbiologypt_BR
dc.subjectNitrifying bactéria – Genomespt_BR
dc.subjectNitrogen – Fixationpt_BR
dc.subjectHousekeeping genept_BR
dc.subjectLegume-nodulating bacteriapt_BR
dc.subjectBactérias nitrificantes – Genomapt_BR
dc.subjectNitrogênio – Fixaçãopt_BR
dc.subjectGenes essenciaispt_BR
dc.subjectLeguminosa – Nodulação por bactériaspt_BR
dc.subjectBradyrhizobium sp.pt_BR
dc.titleHigh diversity of Bradyrhizobium strains isolated from several legume species and land uses in Brazilian tropical ecosystemspt_BR
dc.typeArtigopt_BR
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