Alpha-tocopherol alteration of soybean antiherbivory to Trichoplusia ni larvae

The antioxidant vitamin E, alpha-tocopherol, was tested as a candidate elicitor of alterable antiherbivory in soybean plants against cabbage looper larvae. Although a nonspecific antioxidant, vitamin E proved elicitory to the involved sulfhydryl-dependent receptor-energy transducer protein in soybea...

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Bibliographic Details
Published in:Journal of chemical ecology 1991-10, Vol.17 (10), p.1941-1951
Main Authors: Neupane, F.P. (Tribhuvan University, Kathmandu, Nepal), Norris, D.M
Format: Article
Language:English
Subjects:
Biological and medical sciences
Chemical control
COMPORTEMENT ALIMENTAIRE
Control
CONTROL BIOLOGICO
CONTROL DE INSECTOS
Fundamental and applied biological sciences. Psychology
GLYCINE MAX
HABITOS ALIMENTARIOS
Invertebrates
Lepidoptera
LUTTE ANTIINSECTE
LUTTE BIOLOGIQUE
Noctuidae
Phytopathology. Animal pests. Plant and forest protection
Protozoa. Invertebrates
RESISTANCE AUX ORGANISMES NUISIBLES
RESISTENCIA A LAS PLAGAS
TOCOFEROLES
TOCOPHEROL
TRICHOPLUSIA NI
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Summary:The antioxidant vitamin E, alpha-tocopherol, was tested as a candidate elicitor of alterable antiherbivory in soybean plants against cabbage looper larvae. Although a nonspecific antioxidant, vitamin E proved elicitory to the involved sulfhydryl-dependent receptor-energy transducer protein in soybean plasma membrane. Effects of alpha-tocopherol were dependent on dosage, time, and space in the plant. The observed elicited effects were all decreases in herbivory. The best negative phytochemical correlate of looper feeding was the percentage of increased total HPLC peak area of extractables from elicited as compared to nonelicited leaves. Some specific compounds, e.g., glyceollins, were quantitatively major components of the total profile of secondary metabolites
ISSN:0098-0331
1573-1561
DOI:10.1007/BF00992579