Leaf-tying by tortricid larvae as an adaptation for feeding on phototoxicHypericum perforatum |
| |
Authors: | Sherri L. Sandberg May R. Berenbaum |
| |
Affiliation: | (1) Department of Entomology, University of Illinois Urbana-Champaign, 61801 Urbana, Illinois |
| |
Abstract: | Hypericin, an anthrone dimer inHypericum perforatum (Guttiferae), is shown for the first time to be phototoxic to generalist lepidopteran larvae; survivorship was reduced and development prolonged forHeliothis zea (Noctuidae) andPlatynota flavedana (Tortricidae) that consumed hypericin diets in the presence of light. Survivorship for both species is enhanced when photoactivating wavelengths are excluded by filters. In natureP. flavedana successfully survives onH. perforatum by tying together leaves and feeding inside the ties. Shielded from light, the larvae are protected by their mode of feeding from phototoxic compounds. |
| |
Keywords: | Hypericum perforatum phototoxicity hypericism Platynota flavedana Tortricidae Heliothis zea Noctuidae Lepidoptera |
本文献已被 SpringerLink 等数据库收录! |