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- Burgueño-Tapia, Eleuterio; Castillo, Lucia; González-Coloma, Azucena; Joseph-Nathan, Pedro
- Journal of chemical ecology 2008 v.34 no.6 pp. 766-771
- sesquiterpenoids; antifeeding activity; benzoquinones; Spodoptera littoralis; phytotoxicity; Lactuca sativa; Myzus persicae; Leptinotarsa decemlineata; structure-activity relationships; root growth; chemical constituents of plants; pest resistance; root radicle
- ... The sesquiterpene p-benzoquinone perezone (1), isolated from Perezia adnata var. alamani (Asteraceae), and its non-natural derivatives isoperezone (2), dihydroperezone (3), dihydroisoperezone (4), and anilidoperezone (5) were tested as antifeedants against the herbivorous insects Spodoptera littoralis, Leptinotarsa decemlineata, and Myzus persicae. Compounds 1-5 exhibited strong antifeedant activi ...
- Johnson, Eric T.; Berhow, Mark A.; Dowd, Patrick F.
- Journal of chemical ecology 2008 v.34 no.6 pp. 757
- Helicoverpa zea; Trichoplusia ni; larvae; Petunia hybrida; pest resistance; resistance mechanisms; flowers; color; chemical constituents of plants; anthocyanins; mortality; antifeeding activity; body weight
- ... Anthocyanins are likely a visual aid that attract pollinators. However, there is also the possibility that anthocyanins are present in some flowers as defensive molecules that protect them from excess light, pathogens, or herbivores. In this study, resistance due to anthocyanins from commercial petunia flowers (Petunia hybrida) was examined for insecticide/antifeedant activity against corn earworm ...