Flight Activity, Flight Fuels and Lipophorins in a Cricket, Gryllus bimaculatus

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概要

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• The flight activity and flight fuels of a cricket, Gryllus bimaculatus, were investigated. Flight activity was monitored at 30℃. Both sexes started leaving the containers by day 3 and virtually all individuals disappeared from the containers within a week. Hemolymph samples were collected from 3-or 4-day-old tethered adults flown for 0-6 hours to observe the changes in concentrations of trehalose, diacylglycerol (DG), hydrocarbons and cholesterol in the hemolymph. The trehalose concentration declined after a 15-min flight, whereas the DG concentration increased significantly after a 1-hour flight. This pattern suggests that this cricket uses trehalose during the initial stage of flight activity and switches the flight fuel to DG for a further extended flight, as reported for locusts by others. Both hydrocarbon and cholesterol concentrations remained rather constant over a 6-hour flight. Tethered crickets which could not fly because their wings had been glued together beforehand did not show a significant change in either trehalose or DG concentration. Low-density lipophorin (LDLp) appeared in the hemolymph after a 1-or 2-hour flight, but much less in quantity than in AKH-injected unflown crickets. It was confirmed that the adipokinetic hormone (Grb-AKH) stimulated the formation of LDLp in this species. By electrophoresis, LDLp was found to contain apoLp-III, an apo-lipoprotein known to restore the solubility of a lipid-loaded lipophorin in other species.

• 日本昆虫学会の論文
• 1999-12-25

著者

• Yasuhara Yuko

  The Institute Of Low Temperature Science Hokkaido University

• Katagiri Chihiro

  The Institute Of Low Temperature Science Hokkaido University

• TANAKA Seiji

  National Institute of Sericultural and Entomological Science

• TANAKA Kazuhiro

  The Institute of Low Temperature Science, Hokkaido University

• NAKAHARA Yuichi

  National Institute of Sericultural and Entomological Science

• Tanaka Kazuhiro

  The Institute Of Low Temperature Science Hokkaido University:(present Address)laboratory Of Ecology

• Tanaka Seiji

  National Inst. Agrobiological Sci. (nias) Ibaraki Jpn

• Nakahara Yuichi

  National Institute of Agrobiological Sciences

関連論文

• Continuous Variation in Wing Length and Flight Musculature in a Tropical Field Cricket, Teleogryllus derelictus : Implications for the Evolution of Wing Dimorphism
• COURTSHIP, AVOIDANCE AND AGGRESSIVE BEHAVIORS WERE INTRODUCED BY DIFFERENT COMPONENTS OF CUTICULAR PHEROMONES IN MALE CRICKET GRYLLUS BIMACULATUS(Physiology,Abstracts of papers presented at the 75^ Annual Meeting of the Zoological Society of Japan)
• Flight Activity, Flight Fuels and Lipophorins in a Cricket, Gryllus bimaculatus
• In vitro rearing of the larval endoparasitoid, Venturia canescens(Gravenhorst)(Hymenoptera:Ichneumonidae)IV.Effects of osmotic pressure and pH on larval development
• Insect lipophorin and vertebrate lipoproteins support larval development of the endoparasitoid Venturia canescens (Hymenoptera : Ichneumonidae) as dietary lipid sources
• Investigation of Low Thermal Threshold for Development of the Larval Endoparasitoid, Venturia canescens (Hymenoptera : Ichneumonidae) Using in Vitro Culture Technique
• Diapause Responses of Two Geographic Strains of a Phoretic Egg Parasitoid Telenomus euproctidis (Hymenoptera : Scelionidae) on Two Allopatric Tussock Moth Species

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