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The Effects of Polyacrylic Acid, Acetylsalicylic Acid and Salicylic Acid on Resistance of Cucumber to Colletotrichum lagenarium
Author(s) -
Mills P. R.,
Wood R. K. S.
Publication year - 1984
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.1439-0434.1984.tb00763.x
Subject(s) - salicylic acid , polyacrylic acid , biology , inoculation , cotyledon , botany , horticulture , biochemistry , chemistry , organic chemistry , polymer
Injection of cucumber cotyledons with polyacrylic acid (PA), acetylsalicylic acid (ASA) and salicylic acid (SA) induced resistance to inoculations with Colletrichum Iagenarium when inoculation followed injection by 96 h but not by 24 h. Size and number of lesions were greatly decreased. Resistance was greatest in injected cotyledons but was also pronounced in non‐injected halves of cotyledons and occasionally in first or second leaves. Incorporation of PA, ASA and SA into liquid shake cultures did not significantly affect growth of the pathogen. Gel electrophoresis of soluble proteins extracted from cotyledons showed that induction of resistance was not accompanied by the appearance of novel soluble proteins.