کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2840764 | 1165356 | 2011 | 8 صفحه PDF | دانلود رایگان |
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.
Effects of tetrahydrolipstatin (THL) on larval growth to 21 days and percentage pupation of Epiphyas postvittana larvae.Figure optionsDownload as PowerPoint slideHighlights
► Epiphyas postvittana larvae were fed tetrahydrolipstatin (THL) in their diet.
► Survival, growth rate, development, and percentage pupation were reduced.
► Enzyme activity of midgut lipase was reduced in THL-fed larvae.
► Gene expression of gastric lipase genes is up-regulated in THL-fed larvae.
Journal: Journal of Insect Physiology - Volume 57, Issue 12, December 2011, Pages 1643–1650