Identification of Six Type III Effector Genes with the PIP Box in Xanthomonas campestris pv. campestris and Five of Them Contribute Individually to Full Pathogenicity oleh Wei Jiang, Bo-Le Jiang, Rong-Qi Xu, Jun-Ding Huang, Hong-Yu Wei, Guo-Feng Jiang, Wei-Jian Cen, Jiao Liu, Ying-Ying Ge, Guang-Hua Li, Li-Li Su, Xiao-Hong Hang, Dong-Jie Tang, Guang-Tao Lu, Jia-Xun Feng, Yong-Qiang He, Ji-Liang Tang