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ISSN: 2155-9597

Journal of Bacteriology & Parasitology
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Research Article

Quorum Sensing in Vibrio and its Relevance to Bacterial Virulence

Huan Liu1, Swaminath Srinivas2, Xiaoxian He1, Guoli Gong1, Chunji Dai1, Youjun Feng3,4,5#, Xuefeng Chen1# and Shihua Wang3#*

1College of Life Science & Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China

2Department of Biochemistry, University of Illinois at Urbana-Champaign, IL61801, USA

3College of Life Sciences, Fujian Agriculture & Forestry University, Fuzhou 350002, China

4Institute of Microbiology, College of Life Science, Zhejiang University, Hangzhou 310058, China

5School of Molecular & Cellular Biology, University of Illinois, Urbana, IL 61801, USA

#Equally contributed

*Corresponding Author:
Shihua Wang
College of Life Sciences
Fujian Agriculture & Forestry University
Fuzhou 350002, China
E-mail: [email protected]

Received date: July 18, 2013; Accepted date: August 06, 2013; Published date: August 12, 2013

Citation: Liu H, Srinivas S, He X, Gong G, Dai C, et al. (2013) Quorum Sensing in Vibrio and its Relevance to Bacterial Virulence. J Bacteriol Parasitol 4:172. doi: 10.4172/2155-9597.1000172

Copyright: © 2013 Liu H, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Quorum sensing is a widespread system of cell to cell communication in bacteria that is stimulated in response to population density and relies on hormone-like chemical molecules to control gene expression. In mutualistic marine organisms like Vibrio, this system enables them to express certain processes, like virulence, only when its impact as a group would be maximized. An N-acylhomoserine lactone-dependent LuxI/R quorum sensing system has first been exemplified in Vibrio fischeri in the 1970s, regulating core bioluminescence genes. Since then, quorum sensing in Vibrio has been shown to influence a wide variety of process ranging from virulence factor formation to sporulation and motility. Most quorum sensing pathways produce and detect an autoinducer in a population dependent manner and transmit this information via a phospho-relay system to a core regulator that controls gene expression using certain pivotal elements. With several members of the genus Vibrio being known to cause severe foodborne infections, this review aims to present an overview of the quorum sensing systems present in four major Vibrio pathogens, V. fischeri, V. harveyi, V. cholerae and V. vulnificus and their roles in regulating the virulence of these organisms.

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