Lipid and Carbohydrate Contents in the Adult Hemolymph during Flight of the Oriental Tobacco Budworm (Helicoverpa assulta (Guenee))

비행중인 담배나방의 혈림프내 지질과 탄수화물의 함량변화

  • 정진교 (서울대학교 농업생명과학대학 농생물학과, 농업생물신소재연구센터) ;
  • 부경생 (서울대학교 농업생명과학대학 농생물학과, 농업생물신소재연구센터)
  • Published : 1992.12.01


Studies were carried out to investigate changes of lipid and carbohydrate contents in the hemolymph of the Oriental tobacco budworm(Helicoverpa assulta (Guenee» adults during flight and hormonal effects on mobilization of energy sources in the hemolymph. During a few minutes after flight, both sexes showed a rapid increase in lipid content and the high level was maintained for about 2 hours. But carbohydrate content in the hemolymph during flight showed almost no change but a slight increase seen during the first 10 min of flight in males only. Synthetic adipokinetic(Lom-AKH- n), hypertrehalosemic(Bld-HrTH) hormones and brain/ corpora cardiaca extract of H. assulta adult elevated lipid and carbohydrate contents in hemolymph and the effect was much more pronounced for lipid. These results suggested that lipid is a main fuel for flight activity and lipid mobilization is under the hormonal control. And this study showed that both adipokinetic and hypertrehalosemic factors may exist in H. assulta and these factors may have similar structures to those of Mas-AKH, Hez-HrTH, Lom-AKH- n or Pea-HrTH.