Department of Plant Pathology, Cornell University, Ithaca, NY 14853, U.S.A.
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Accepted 24 February 1998.
The hrpC operon of Erwinia chrysanthemi EC16 encodes five genes conserved in Erwinia amylovora and Pseudomonas syringae. Mutagenesis indicated that hrcC is required for elicitation of the hypersensitive reaction in tobacco leaves. The unexpected presence of plcA and homologs of hemolysin/activator genes in the regions flanking the hrcC and hrpN operons is reported.
type III secretion.
© 1998 The American Phytopathologica Society