Diversity and functional analysis of luxS genes in vibrios from marine sponges Mycale laxissima and Ircinia strobilina.

ABSTRACT: Sponges harbor highly diverse and dense microbial communities, providing an environment in which bacterial signaling may be important. Quorum sensing (QS) is a cell density-dependent signaling process that bacteria employ to coordinate and regulate their gene expression. Previous studies have found that bacteria isolated from sponges are able to produce acyl-homoserine lactones (AHLs), an important class of QS molecules found in proteobacteria. Autoinducer-2 (AI-2) is a second class of QS molecule, and is considered to be an interspecies signal. However, AI-2 signaling has not been reported in sponge bacterial symbionts. In this study, degenerate primers were designed based on known Vibrio luxS sequences to amplify the luxS genes encoding AI-2 synthases of several Vibrio isolates from mari

SUBMITTER: Zan J 

PROVIDER: S-EPMC3160689 | biostudies-literature | 2011 Sep

REPOSITORIES: biostudies-literature