Genome-Wide Screening for Novel Candidate Virulence Related Response Regulator Genes in pv. .

Two-component regulatory system (TCS), a major type of cellular signal transduction system, is widely used by bacteria to adapt to different conditions and to colonize certain ecological niches in response to environmental stimuli. TCSs are of distinct functional diversity, genetic diversity, and species specificity (pathovar specificity, even strain specificity) across bacterial groups. Although TCSs have been demonstrated to be crucial to the virulence of , only a few researches have been reported about the studies of TCSs in pathovar (hereafter ), the pathogen of rice bacterial streak disease.