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Plasmid pSfr64a and the symbiotic plasmid pSfr64b of Sinorhizobium fredii GR64 control each other's conjugative transfer through quorum-sensing elements
(Academic Press Inc Elsevier Science, 2019-11)
Rhizobia are nitrogen-fixing symbionts of plants. Their genomes frequently contain large plasmids, some of which are able to perform conjugative transfer. Plasmid pSfr64a from Sinorhizobium fredii GR64 is a conjugative ...
Characterization of Rhizobium grahamii extrachromosomal replicons and their transfer among rhizobia
(BioMed Central, 2014-01)
Background Rhizobium grahamii belongs to a new phylogenetic group of rhizobia together with Rhizobium mesoamericanum and other species. R. grahamii has a broad-host-range that includes Leucaena leucocephala and Phaseolus ...
Transfer of the symbiotic plasmid of rhizobium etli CFN42 to endophytic bacteria inside nodules
(Frontiers Media, 2020-07-29)
Conjugative transfer is one of the mechanisms allowing diversification and evolution ofbacteria. Rhizobium etli CFN42 is a bacterial strain whose habitat is the rhizosphere andis able to form nodules as a result of the ...
Insight into the structure, function and conjugative transfer of pLPU83a, an accessory plasmid of Rhizobium favelukesii LPU83
(Academic Press Inc Elsevier Science, 2019-05)
Plasmids are widely distributed in rhizobia, a group of bacteria able to establish symbiotic relationships with the roots of legume plants. Two types of conjugative transfer (CT) regulation of these elements have been ...
The Plasmid Mobilome of the Model Plant-Symbiont Sinorhizobium meliloti: Coming up with New Questions and Answers
(American Society for Microbiology, 2014-07)
Rhizobia are Gram-negative Alpha- andBetaproteobacteria living in the underground that have theability to associate with legumes for the establishment ofnitrogen-fixing symbioses.Sinorhizobium melilotiinparticular—the ...
Conjugal transfer of a Sinorhizobium meliloti cryptic plasmid evaluated during a field release and in soil microcosms
(Elsevier France-editions Scientifiques Medicales Elsevier, 2013-03)
Horizontal gene transfer (HGT) is a central evolutionary mechanism that mediates the diversification and adaptation of bacteria in general and of rhizobia in particular. The few quantitative data on the conjugal transfer ...