Quorum sensing enhances the stress response in Vibrio cholerae. Journal   American journal of physiology. Endocrinology and metabolism. Structure (London, England) Applied and environmental microbiology. Citation   Appl Environ Microbiol. 73(11):3742-6 Publication date   2007 Jun Authors   Joelsson A Kan B Zhu J Investigators   Jiyue Zhu Grant agencies   National Institute of Child Health and Human Development National Institute of Mental Health National Center for Research Resources National Institute of Allergy and Infectious Diseases Grants   NIAID K22 AI060715 NIAID R01 AI072479 MeSH headings   Gene Expression Regulation, Bacterial Microbial Viability Oxidative Stress Quorum Sensing Vibrio cholerae MeSH qualifiers   physiology Abstract   Vibrio cholerae lives in aquatic environments and causes cholera. Here, we show that quorum sensing enhances V. cholerae viability under certain stress conditions by upregulating the expression of RpoS, and this regulation acts through HapR, suggesting that a quorum-sensing-enhanced stress response plays a role in V. cholerae environmental survival.