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Induced Resistance in Tomato Against Corynebacterium michiganense pv. michiganense by Prior Inoculation with Pseudomonas syringae Pathovars
Author(s) -
SüLE S.
Publication year - 1988
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.1439-0434.1988.tb01026.x
Subject(s) - pseudomonas syringae , biology , inoculation , microbiology and biotechnology , pseudomonadaceae , pseudomonadales , inducer , pseudomonas , solanaceae , streptococcaceae , bacteria , population , horticulture , pathogen , gene , medicine , biochemistry , genetics , environmental health , antibiotics
Prior inoculation of wounded tomato petioles with a minimum concentration of 5 × 10 4 cells per wound of various Pseudomonas syringae pathovars completely protected plants against subsequent infection with Corynebacterium michiganense pv. michiganense inoculated on the same site. Only living cells induced effective protection. In protected tissue, cells of Corynebacterium michiganense pv. michiganense remained localized at the inoculation site and their multiplication was restricted. Irrespective of the cell number introduced, initial population decreased slowly and then levelled off below the initial inoculum level. This level remained constant throughout the experimental period (15 days). Similarly, the, cell number of the inducer Pseudomonas syringae pv. phaseolicola levelled off at ca. 10 6 cells per plant. The protection was not systemic and could be eliminated by removing the upper 5 mm of the inoculated wound tissues containing, the inducer.