The hrp genes of Xanthomonas oryzae pv. oryzicola(Xooc),which is the causal agent of bacterial leaf streak in rice,possesses the ability to elicit hypersensitive response on nonhost plants and the pathogenicity in host rice.

• 水稻条斑病细菌(Xanthomonas oryzae pv.；oryzicola；Xooc)决定在非寄主植物上激发过敏反应(hypersensitive response)和在寄主水稻上具致病性(pathogenicity)的hrp基因簇是诱导表达的。