ENTERIC AND PLANT-DERIVED DETERRENTS IN REGURGITATE OF AMERICAN BIRD GRASSHOPPER, SCHISTOCERCA-AMERICANA

Citation
F. Ortego et al., ENTERIC AND PLANT-DERIVED DETERRENTS IN REGURGITATE OF AMERICAN BIRD GRASSHOPPER, SCHISTOCERCA-AMERICANA, Journal of chemical ecology, 23(8), 1997, pp. 1941-1950
Citations number
20
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Ecology,Biology
Journal title
ISSN journal
0098-0331
Volume
23
Issue
8
Year of publication
1997
Pages
1941 - 1950
Database
ISI
SICI code
0098-0331(1997)23:8<1941:EAPDIR>2.0.ZU;2-X
Abstract
Regurgitates of the grasshopper Schistocerca americana were deterrent to Crematogaster ants. Regurgitates obtained from insects fed upon whe at seedlings were more strongly deterrent than those obtained from ins ects fed on romaine lettuce leaves. After extraction of the regurgitat es with ethyl acetate, deterrence could be demonstrated in both the or ganic and aqueous phases. Wheat seedlings, lettuce, and feces from whe at-or lettuce-fed insects yielded extracts with lower deterrency. Our results suggest that deterrents in the organic phase of the regurgitat e are primarily due to the presence of plant natural products, whereas the deterrency of the aqueous phase is probably due to digestive enzy mes from enteric components, probably digestive enzymes.