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Effect of Heat‐killed Bacteria on the Interaction of Pea with Pseudomonas syringae pv. pisi
Author(s) -
Akpa A. D.,
Archer S. A.
Publication year - 1991
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/j.1439-0434.1991.tb00116.x
Subject(s) - pseudomonas syringae , biology , inoculation , bacteria , microbiology and biotechnology , pseudomonadaceae , cultivar , pathogen , pseudomonas , pseudomonadales , hypersensitive response , horticulture , plant disease resistance , gene , genetics , biochemistry
The effect of simultaneous treatment with heat‐killed and live bacteria on the responses of two pea cultivars, Early Onward and Hurst Green Shaft, to inoculation with two races, 1 and 2, of Pseudomonas syringae pv. pisi was investigated. Simultaneous application induced resistance in pea to the bacterial pathogen. The level of resistance response elicited in the host increased with increasing number of heat‐killed cells in the inoculum. Heat‐killed cells of neither race elicited the hypersensitive reaction. No symptoms were induced in plants of either cultivar from treatment of control plants with sterile distilled water or from treatment with heat‐killed bacterial cells only. Simultaneous treatment with heat‐killed and inoculation with live bacteria did not have any apparent effect on the trend of bacterial multiplication in vivo .