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Occurrence of specific reactions induced by Pseudomonas syringae pv. syringae on bean pods, lilac and pear plants
Author(s) -
YESSADCARREAU S.,
MANCEAU C.,
LUISETTI J.
Publication year - 1994
Publication title -
plant pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.928
H-Index - 85
eISSN - 1365-3059
pISSN - 0032-0862
DOI - 10.1111/j.1365-3059.1994.tb01587.x
Subject(s) - lilac , pseudomonas syringae , pear , inoculation , biology , pathogenicity , botany , horticulture , host (biology) , microbiology and biotechnology , pathogen , ecology
A study on the pathogenicity of 81 strains of Pseudomonas syringae pv. syringae (PSS) isolated from 16 different hosts was conducted on lilac plants, bean pods and pear seedlings, using artificial inoculation. Only 55 among the 81 strains induced a necrotic lesion when inoculated on lilac leaves. On bean pods, all but one of the bean isolates, and only eight strains among the 52 strains isolated from other hosts, induced typical green water‐soaked lesions. On pear leaves, only pear isolates incited a typical progressive necrotic reaction, the isolates from other origins inducing no symptoms or a weak reaction limited to the inoculation point. This study indicates that in addition to the large variability observed in aggressiveness of PSS strains, host specificity occurred on bean and pear.