Naturally Occurring Nonpathogenic Isolates of the Plant Pathogen Pseudomonas syringae Lack a Type III Secretion System and Effector Gene Orthologues

Toni J. Mohr, Haijie Liu, Shuangchun Yan, Cindy E. Morris, Jose A. Castillo, Joanna Jelenska and Boris A. Vinatzer

Journal of Bacteriology 190 ( 8 ): 2858 - 2870 , 2008