Degeneration of the intersegmental muscles: Alterations in hemolymph during muscle degeneration☆
[摘要] AlterationsinhemolymphconstituentsduringthedegenerationoftheintersegmentalmusclesofManducasextaandAntheraeapolyphemushavebeenfollowedbyseveraltechniques.Anantigentomuscleproteinappearsinthebloodwithin5–10hraftertheadulthasemerged.Whentritiatedleucineisinjectedintodevelopingpupae,labeledproteinandaminoacidsarereleasedintothebloodduringtheperiodoverwhichthemusclesdegenerate.Bloodlevelsoflacticdehydrogenase,glutamine-oxaloacetatetransaminase,argininephosphokinase,andaldolaseincreaseapproximately8–9hraftertheinsectsemerge.Thelattertwoenzymesincreasesixfoldoverpreemergencelevels,andarehighestduringtheperiodoverwhichmuscleintegrityiscompromised.Thelevelsofcirculatingmuscleproteinsdecreaseafter30–50hr.Theseseveraldatasuggestthatafractionofthemuscleproteinisnotdigestedwithinthemusclefiber,butissolubilizedorotherwisereleasedintothehemolymph,tobedigestedelsewhere.
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[效力级别] [学科分类] 生物科学(综合)
[关键词] [时效性]