Quorum sensing in Bacillus thuringiensis is required for completion of a full infectious cycle in the insect.

ABSTRACT: Bacterial cell-cell communication or quorum sensing (QS) is a biological process commonly described as allowing bacteria belonging to a same pherotype to coordinate gene expression to cell density. In Gram-positive bacteria, cell-cell communication mainly relies on cytoplasmic sensors regulated by secreted and re-imported signaling peptides. The Bacillus quorum sensors Rap, NprR, and PlcR were previously identified as the first members of a new protein family called RNPP. Except for the Rap proteins, these RNPP regulators are transcription factors that directly regulate gene expression. QS regulates important biological functions in bacteria of the Bacillus cereus group. PlcR was first characterized as the main regulator of virulence in B. thuringiensis and B. cereus. More recently, the Pl

SUBMITTER: Slamti L 

PROVIDER: S-EPMC4147580 | biostudies-literature | 2014 Jul

REPOSITORIES: biostudies-literature