1999
DOI: 10.1128/jb.181.12.3816-3823.1999
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Analysis of Quorum-Sensing-Dependent Control of Rhizosphere-Expressed ( rhi ) Genes in Rhizobium leguminosarum bv. viciae

Abstract: The rhi genes of Rhizobium leguminosarumbiovar viciae are expressed in the rhizosphere and play a role in the interaction with legumes, such as the pea. Previously (K. M. Gray, J. P. Pearson, J. A. Downie, B. E. A. Boboye, and E. P. Greenberg, J. Bacteriol. 178:372–376, 1996) therhiABC operon had been shown to be regulated by RhiR and to be induced by addedN-(3-hydroxy-7-cis-tetradecenoyl)-l-homoserine lactone (3OH,C14:1-HSL). Mutagenesis of a cosmid carrying the rhiABC and rhiR gene region identified a gene (… Show more

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Cited by 127 publications
(53 citation statements)
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“…Gram-negative bacteria can engage in AHL dependent phytopathogenic [16] and phytosymbiotic [17] relationships with terrestrial plants. E. carotovora for example produces extracellular enzymes required for the infection of a variety of terrestrial plant species.…”
Section: Discussionmentioning
confidence: 99%
“…Gram-negative bacteria can engage in AHL dependent phytopathogenic [16] and phytosymbiotic [17] relationships with terrestrial plants. E. carotovora for example produces extracellular enzymes required for the infection of a variety of terrestrial plant species.…”
Section: Discussionmentioning
confidence: 99%
“…Thirdly, signal exchange between different rhizobia in the rhizosphere is based on the production of quorum sensing signal molecules such as AHLs allowing the whole population to initiate a concerted action once a critical concentration has been reached e.g. [43,[220][221][222][223][224][225]. Recently, a new class of quorum sensing molecules involved in symbiotic gene regulation was identified in Bradyrhizobium japonicum (Fig.…”
Section: Ahl-mediated Swarming In Rhizobium Etlimentioning
confidence: 99%
“…Quorum-sensing mechanisms control numerous functions in rhizobia, including exopolysaccharide production (Marketon et al, 2003;Hoang et al, 2004;Glenn et al, 2007), motility and nitrogen fixation (Hoang et al, 2004(Hoang et al, , 2008, and nodulation (Cubo et al, 1992;Rodelas et al, 1999;Daniels et al, 2002;Hoang et al, 2004), all of which are related to symbiosis. The studies cited in this section show clearly that Mesorhizobium is one of the genera of bacteria in which quorum sensing plays an important role in biofilm formation, attachment, colonization, and nodulation of legumes.…”
Section: Introductionmentioning
confidence: 99%