Wing morph-specific differences in the metabolism and endocrine control of reserve mobilization in adult males of a flightless bug, Pyrrhocoris apterus (L.) (Heteroptera)
Language English Country Germany Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
- MeSH
- Central Nervous System chemistry MeSH
- Energy Metabolism MeSH
- Glycogen metabolism MeSH
- Hemolymph chemistry MeSH
- Heteroptera anatomy & histology genetics metabolism MeSH
- Insect Hormones metabolism MeSH
- Wings, Animal abnormalities anatomy & histology MeSH
- Pyrrolidonecarboxylic Acid analogs & derivatives metabolism MeSH
- Lipid Metabolism MeSH
- Lipid Mobilization physiology MeSH
- Oligopeptides metabolism MeSH
- Eating MeSH
- Peptide Hydrolases metabolism MeSH
- Proteins metabolism MeSH
- Intestines anatomy & histology MeSH
- Intestinal Mucosa metabolism MeSH
- Fat Body metabolism MeSH
- Animals MeSH
- Check Tag
- Male MeSH
- Animals MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- adipokinetic hormone MeSH Browser
- Glycogen MeSH
- Insect Hormones MeSH
- Pyrrolidonecarboxylic Acid MeSH
- Oligopeptides MeSH
- Peptide Hydrolases MeSH
- Proteins MeSH
The differences in the metabolism and endocrine control of reserve mobilization in long-winged (macropterous) and short-winged (brachypterous) males of a flightless firebug (Pyrrhocoris apterus) were studied. We found that protein content in the gut was significantly lower in 5-10 day-old macropterous males due to their fasting and higher in 28 day-old ones than in the same aged brachypterous counterparts as the result of renewed food intake. Overall protease activity was significantly lower in 10-14 day-old macropters, while an abrupt increase in the activity starting on day 21 after adult ecdysis was also associated with renewal of the food intake. The levels of carbohydrates in haemolymph were only slightly lower in 1-10 day-old macropterous males than in the same aged brachypters. However, more than twofold higher lipid content in haemolymph of 7-10 day-old macropterous males than in the same aged brachypterous males was found. Higher mobilization of lipid reserves from the fat bodies in macropterous males was accompanied by more intensive adipokinetic response and higher levels of adipokinetic hormone in the body. It is the first report of endocrine regulation of wing morph-related differences in the lipid mobilization in males of wing-polymorphic insects.
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