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Effects of AiiA-Mediated Quorum Quenching in Sinorhizobium meliloti on Quorum-Sensing Signals, Proteome Patterns and Symbiotic Interactions

Gao, Mengsheng; Chen, Hancai; Eberhard, Anatol; Gronquist, Matthew R; Robinson, Jayne B; Connolly, Mary; Teplitski, Max; Rolfe, Barry; Bauer, Wolfgang D


Many behaviors in bacteria, including behaviors important to pathogenic and symbiotic interactions with eukaryotic hosts, are regulated by a mechanism called quorum sensing (QS). A "quorum-quenching" approach was used here to identify QS-regulated behaviors in the N-fixing bacterial symbiont Sinorhizobium meliloti. The AiiA lactonase from Bacillus produced in S. meliloti was shown to enzymatically inactivate S. meliloti's N-acyl homoserine lactone (AHL) QS signals, thereby disrupting normal QS...[Show more]

CollectionsANU Research Publications
Date published: 2007
Type: Journal article
Source: Molecular Plant-Microbe Interactions (MPMI)
DOI: 10.1094/MPMI-20-7-0843


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