Causes rice bacterial blight disease. Xanthomonas oryzae pv. oryzae KACC 10331

Xanthomonas oryzae pv. oryzae strain KACC10331. This plant pathogen affects rice plants by causing leaf blight, a major problem in Asian countries where rice production occurs on an industrial scale. Losses of up to 50% of the total crop can occur in extreme cases. This pathogen enters the xylem and spreads throughout the vascular tissue of the plant, which results in wilting of the plant, or to leaf blight if the infection occurs later in development. This organism shares common virulence determinants with Xanthomonas campestris including an hrp (hypersensitive response) system that is a type III secretion system for delivery of effector molecules to the host cell cytoplasm, and avr (avirulence) genes. Other pathogenicity determinants include extracellular polysaccharide, adhesins, a type II secretion system and the extracellular enzymes secreted by it, as well as some toxins. This organism encodes 245 proteins that are not found in other Xanthomonas pathogens.