Feeding responses to selected alkaloids by gypsy moth larvae, Lymantria dispar (L.)
نویسندگان
چکیده
منابع مشابه
Tree Mortality in Mixed Pine-Hardwood Stands Defoliated by the European Gypsy Moth (Lymantria dispar L.)
Defoliation by the European gypsy moth (Lymantria dispar L.) and subsequent tree mortality have been well documented in the northeastern United States. In this study we evaluate tree mortality after initial defoliation in mixed pine-hardwood stands in the southeastern United States as the range of European gypsy moth expands. In 1993, 46 mature pine-oak and pine-sweetgum stands were selected on...
متن کاملAminopeptidase-Like Activity in Hemolymph Plasma from Larvae of the Gypsy Moth, Lymantria dispar (Lepidoptera: Lymantriidae)
Aminopeptidase was isolated from the plasma fraction of hemolymph from last instar larvae of the gypsy moth Lymantria dispar. Activity was detected using the synthetic substrate L-alanine-4-nitroanilide. Total aminopeptidase activity per microliter of plasma varied with developmental stage. Activity was detected throughout the last (fifth) larval instar and increased throughout the pupal stage....
متن کاملCharacterization of Gypsy Moth (Lymantria dispar) Nuclear Polyhedrosis Virus.
Characterization of the proteins and nucleic acid of the gypsy moth nuclear polyhedrosis virus isolated in Ithaca, N.Y. (LdNPV-IT) is presented. A total of 29 viral structural proteins were identified by sodium dodecyl sulfate-polyacrylamide gel electrophoresis when the virus was isolated in the absence of alkaline protease activity. Fourteen surface envelope viral proteins were identified by l...
متن کاملCritical patch size generated by Allee effect in gypsy moth, Lymantria dispar (L.)
Allee effects are important dynamical mechanisms in small-density populations in which per capita population growth rate increases with density. When positive density dependence is sufficiently severe (a 'strong' Allee effect), a critical density arises below which populations do not persist. For spatially distributed populations subject to dispersal, theory predicts that the occupied area also...
متن کاملIon channel activity from the midgut brush-border membrane of gypsy moth (Lymantria dispar) larvae.
Ion channels from the midgut apical membrane of gypsy moth (Lymantria dispar) larvae were studied following mechanical fusion of brush-border membrane vesicles with planar phospholipid bilayer membranes. In symmetrical 300 mmol l(-)(1) KCl (pH 9.0), nine different channels with conductances ranging from 27 to 795 pS and linear current/voltage relationships were resolved. In the presence of a KC...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Naturwissenschaften
سال: 2006
ISSN: 0028-1042,1432-1904
DOI: 10.1007/s00114-005-0070-1