Genomic and mutational analysis of Pseudomonas syringae pv. tagetis EB037 pathogenicity on sunflower.

ABSTRACT:

Background

Pseudomonas syringae pv. tagetis (Pstag) causes apical chlorosis on sunflower and various other plants of the Asteraceae family. Whole genome sequencing of Pstag strain EB037 and transposon-mutant derivatives, no longer capable of causing apical chlorosis, was conducted to improve understanding of the molecular basis of disease caused by this pathogen.

Results

A tripartite pathogenicity island (TPI) for a Type III secretion system (T3SS) with the complete hrp-hrc gene cluster and conserved effector locus was detected in the Pstag genome. The exchange effector region of the TPI contained genes potentially functioning in detoxification of the environment as well as two integrases, but no previously described T3SS effector homologues. In all, the Pstag EB037 genome c

SUBMITTER: Maul JE 

PROVIDER: S-EPMC11760712 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature