A transcriptome study of DSF-mediated quorum sensing in Xanthomonas axonopodis pv. citri

ABSTRACT: Quorum sensing (QS) in Xanthomonas axonopodis pv. citri, the causal agent of citrus canker, is mediated by a diffusible signal factor (DSF). QS is required for the full virulence of X. axonopodis pv. citri in planta. Mutations in rpfF, rpfC and rpfG, the core genes of QS, decreased the production of extracellular proteases and bacterial motility. Comparison of the transcriptomes of QS mutants with that of the wild type stain revealed that QS temporally regulates the expression of a large set of genes, including genes involved in chemotaxis and flagellar biosynthesis, genes related to metabolism, genes encoding virulence traits such as type II secretion system substates, type III secretion system and effectors. Cross talk between the QS regulon and the HrpG regulon has also been identified

ORGANISM(S): Xanthomonas axonopodis pv. citri str. 306

SUBMITTER: Yinping Guo 

PROVIDER: E-GEOD-29877 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress