Quorum quenching bacillus sonorensis isolated from soya sauce fermentation brine

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Yin, W. F., Tung, H. J., Sam, C. K., Koh, C. L., & Chan, K. G. (2012). Quorum quenching bacillus sonorensis isolated from soya sauce fermentation brine. Sensors, 12(4), 4065-4073. http://www.mdpi.com/1424-8220/12/4/4065
Author
Yin, Wai Fong
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Tung, Hun Jiat
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Sam, Choon Kook
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Koh, Chong Lek
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Chan, Kok Gan
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.
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Date Issued
2012
Publisher
MDPI
Journal
Sensors
DOI
10.3390/s120404065