The effects of the broad-specificity lipase inhibitor, tetrahydrolipstatin, on the growth, development and survival of the larvae of Epiphyas postvittana (Walker) (Tortricidae, Lepidoptera).

Autor: Markwick NP; The New Zealand Institute for Plant & Food Research Limited, Private Bag 92169, Auckland 1142, New Zealand., Poulton J, McGhie TK, Wohlers MW, Christeller JT
Jazyk: angličtina
Zdroj: Journal of insect physiology [J Insect Physiol] 2011 Dec; Vol. 57 (12), pp. 1643-50. Date of Electronic Publication: 2011 Sep 03.
DOI: 10.1016/j.jinsphys.2011.08.018
Abstrakt: The effects of the lipase inhibitor, tetrahydrolipstatin (THL), on neonate Epiphyas postvittana (Walker) (Lepidoptera, Tortricidae) larvae were investigated by feeding on control artificial diets (with and without 2% ethanol) and diets containing 2% ethanol and one of three concentrations of THL (0.011%, 0.037% and 0.11%). Small but significant reductions in growth rate, percent pupation and time to pupation were observed for larvae feeding on 2% ethanol control diet compared with standard control diet, but larger reductions in all parameters occurred with increasing THL concentration. Third instar larvae fed 0.011% THL in the diet had 40% of the midgut lipase activity in the relevant control larvae and showed up-regulation of gene expression of the gastric lipase-like family but not the pancreatic lipase-like family of midgut lipases.
(Copyright © 2011 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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