Sensors 2012, 12(4), 4065-4073; doi:10.3390/s120404065
Article

Quorum Quenching Bacillus sonorensis Isolated from Soya Sauce Fermentation Brine

Wai-Fong Yin 1 email, Hun-Jiat Tung 1 email, Choon-Kook Sam 2 email, Chong-Lek Koh 2 email and Kok-Gan Chan 1,* email
1 Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia 2 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
(This article belongs to the Special Issue Microbial Quorum Sensing: Linking the Outside World to Microbial Behaviour)
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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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Cite This Article

MDPI and ACS Style

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.

AMA Style

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.

Chicago/Turabian Style

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.

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