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sinI- and expR-Dependent Quorum Sensing in sinorhizobium meliloti

Gao, Mengsheng; Chen, Hancai; Eberhard, Anatol; Gronquist, Matthew R; Robinson, Jayne B; Rolfe, Barry; Bauer, Wolfgang


Quorum sensing (QS) in Sinorhizobium meliloti, the N-fixing bacterial symbiont of Medicago host plants, involves at least half a dozen different N-acyl homoserine lactone (AHL) signals and perhaps an equal number of AHL receptors. The accumulation of 55 proteins was found to be dependent on SinI, the AHL synthase, and/or on ExpR, one of the AHL receptors. Gas chromatography-mass spectrometry and electrospray ionization tandem mass spectrometry identified 3-oxo-C14-homoserine lactone (3-oxo-C...[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
Source: Journal of Bacteriology
DOI: 10.1128/JB.187.23.7931-7944.2005


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