Differences in the growth of dorsolongitudinal flight muscles and gonads in 1-28 days old long-winged (macropterous) and short-winged (brachypterous) adults of the firebug (Pyrrhocoris apterus L.) and the resource allocation to these organs were studied by means of total protein analysis. We found predominant allocation of food resources to flight muscles compared to reproductive organs in both macropterous males and females during the first 5 days of adult life. Subsequent histolysis of developed flight muscles coincided with increased total protein content in some reproductive organs. Initiation of intensive food intake after starvation or application of higher dose of methoprene on macropterous adults changed the resource allocation in favour of growth of reproductive organs and induced precocious histolysis of flight muscles. It indicates an involvement of juvenile hormone in wing morph-related differential allocation of resources in the bug. Increased total protein contents in the ovaries and accessory glands of starved macropterous females and males treated with methoprene, respectively, indicate that proteins derived from the methoprene-induced histolysis of the flight muscles are re-utilized for the growth of the reproductive organs. It is the first report of persistence of differential resource allocation to flight muscles and reproductive organs in the wing-polymorphic insects with non-functional macropterism.

• MeSH
• energetický metabolismus fyziologie   MeSH
• Heteroptera metabolismus   MeSH
• hladovění metabolismus   MeSH
• křídla zvířecí anatomie a histologie   MeSH
• methopren metabolismus   farmakologie   MeSH
• ovarium metabolismus   MeSH
• proteiny metabolismus   MeSH
• rozmnožování fyziologie   MeSH
• svaly metabolismus   MeSH
• zvířata MeSH
• Check Tag
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• srovnávací studie MeSH
• Názvy látek
• methopren MeSH
• proteiny 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.

• MeSH
• centrální nervový systém chemie   MeSH
• energetický metabolismus MeSH
• glykogen metabolismus   MeSH
• hemolymfa chemie   MeSH
• Heteroptera anatomie a histologie   genetika   metabolismus   MeSH
• hmyzí hormony metabolismus   MeSH
• křídla zvířecí abnormality   anatomie a histologie   MeSH
• kyselina pyrrolidonkarboxylová analogy a deriváty   metabolismus   MeSH
• metabolismus lipidů MeSH
• mobilizace lipidů fyziologie   MeSH
• oligopeptidy metabolismus   MeSH
• přijímání potravy MeSH
• proteasy metabolismus   MeSH
• proteiny metabolismus   MeSH
• střeva anatomie a histologie   MeSH
• střevní sliznice metabolismus   MeSH
• tukové těleso metabolismus   MeSH
• zvířata MeSH
• Check Tag
• mužské pohlaví MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• Názvy látek
• adipokinetic hormone MeSH Prohlížeč
• glykogen MeSH
• hmyzí hormony MeSH
• kyselina pyrrolidonkarboxylová MeSH
• oligopeptidy MeSH
• proteasy MeSH
• proteiny MeSH