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Quorum Quenching Bacillus sonorensis Isolated from Soya Sauce Fermentation Brine
Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
Natural Sciences and Science Education AG, National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore 637616, Singapore
* Author to whom correspondence should be addressed.
Received: 16 January 2012; in revised form: 6 March 2012 / Accepted: 22 March 2012 / Published: 27 March 2012
Abstract: An N-acylhomoserine lactone (AHL)-degrading bacterial strain, L62, was isolated from a sample of fermentation brine of Chinese soya sauce by using rich medium agar supplemented with soya sauce (10% v/v). L62, a rod-shaped Gram positive bacterium with amylolytic activity, was phylogentically related to Bacillus sonorensis by 16S ribosomal DNA and rpoB sequence analyses. B. sonorensis L62 efficiently degraded N-3-oxohexanoyl homoserine lactone and N-octanoylhomoserine lactone. However, the aiiA homologue, encoding an autoinducer inactivation enzyme catalyzing the degradation of AHLs, was not detected in L62, suggesting the presence of a different AHL-degrading gene in L62. To the best of our knowledge, this is the first report of AHL-degrading B. sonorensis from soya sauce liquid state fermentation.
Keywords: Bacillus sonorensis; N-acylhomoserine lactone; quorum quenching; quorum sensing; soya sauce fermentation brine
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Yin, W.-F.; Tung, H.-J.; Sam, C.-K.; Koh, C.-L.; Chan, K.-G. Quorum Quenching Bacillus sonorensis Isolated from Soya Sauce Fermentation Brine. Sensors 2012, 12, 4065-4073.
Yin W-F, Tung H-J, Sam C-K, Koh C-L, Chan K-G. Quorum Quenching Bacillus sonorensis Isolated from Soya Sauce Fermentation Brine. Sensors. 2012; 12(4):4065-4073.
Yin, Wai-Fong; Tung, Hun-Jiat; Sam, Choon-Kook; Koh, Chong-Lek; Chan, Kok-Gan. 2012. "Quorum Quenching Bacillus sonorensis Isolated from Soya Sauce Fermentation Brine." Sensors 12, no. 4: 4065-4073.