title: Dynamic changes of free nucleotides in the silkworm undergoing embryonic diapause induced by environmental factors.
abstract: Free nucleotide contents in newly hatched larvae and final instar larvae were examined in a bivoltine race (Daizo) of the silkworm, Bombyx mori, by high pressure liquid chromatography (HPLC). ATP and UTP were higher in whole bodies especially in newly hatched larvae experienced the regimen of continuous light and warm temperature (25 degrees C)(LW-condition) throughout the embyrogenesis than in those experienced the regimen of continuous darkness and low temperature (15 degrees C) (DL-condition). ATP and UTP increased rapidly during the wandering stage and their difference was significant between LW-condition and DL-condition. These results indicated that the triphosphate nucleotide contents induced by environmental factors might involve in diapause destination.
authors.affiliation: College of Life Sciences, Shanghai University, Shanghai 200444, China. hssong@staff.shu.edu.cn
authors.forename: Hong Sheng
authors.initials: HS
authors.lastname: Song
authors.forename: Ying
authors.initials: Y
authors.lastname: An
authors.forename: Koichi
authors.initials: K
authors.lastname: Suzuki
mesh_terms: D000818:Animals; D012831:Bombyx / Q000196:embryology* / Q000378:metabolism; D047108:Embryonic Development; D004777:Environment; D007814:Larva / Q000166:cytology / Q000378:metabolism*; D008675:Metamorphosis, Biological / Q000276:immunology / Q000502:physiology; D009479:Neuropeptides / Q000378:metabolism*; D009711:Nucleotides / Q000032:analysis*; D013696:Temperature
chemical_list: D009479:Neuropeptides; D009711:Nucleotides; C075027:diapause hormone