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Molecular characterization of natural Erwinia pyrifoliae strains deficient in hypersensitive response
Susanne Jock1, Won-Sik Kim, Marie-Anne Barny
1Max-Planck-Institut für Zellbiologie, Rosenhof, 68526 Ladenburg, Germany.
Applied and Environmental Microbiology
|January 7, 2003
Abstract:
From necrotic tissue of a Nashi pear tree, 24 Erwinia pyrifoliae strains, found to be identical by pulsed-field gel electrophoresis analysis, were isolated. Thirteen strains were not virulent on immature pears and did not induce a hypersensitive response in tobacco leaves. The defective gene hrpL was complemented with intact genes from E. pyrifoliae and Erwinia amylovora.