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Chemical basis of resistance in soya bean to cabbage looper, Trichoplusia ni
Author(s) -
Sharma H C,
Norris Dale M
Publication year - 1991
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740550304
Subject(s) - trichoplusia , cabbage looper , daidzein , coumestrol , flavonoid , glycine , chemistry , botany , biology , food science , larva , genistein , noctuidae , biochemistry , amino acid , antioxidant , endocrinology
Thin layer chromatography resolved nine major compounds from the 60%‐methanol extractables from PI 227687 soya bean ( Glycine max (L) Merrill) leaves. The flavonoids, daidzein, an unidentified flavonoid X2 (R f 0·19), glyceollins, sojagol and coumestrol exhibited antifeedant and/or antibiotic effects against the larvae of cabbage looper, Trichoplusia ni Hb. The results indicate that several compounds in PI 227687 soya beans contribute to its antifeedant and/or antibiotic effects against T ni . The role of these compounds in plant resistance to insects is discussed.