美国白蛾幼虫消化酶、解毒酶酶活与其生长发育及营养效应相关性

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中图分类号：S763.3 文献标志码：A

Abstract：【Objective】Thisstudyaimstoivestigatethechangesindigestiveanddetoxificationenzymeactivities，growthand developmentndutritionalefectsinte4-6thistarlarvaeofHyphantiacuneafterfeedingovaroushosttres.Italsoseks toanalyzetheadaptationmechanismsofH.cuneatodierenthostres.【Method】The4th6thinstarlarvaewereraisedindoors ontheleavesofUmusilauglasanduicamuesisamatsudnaetulaathllndbaaa correlation between theactivitiesofdigestiveenzymes（ （a -amylase，lipase，trypsin）anddetoxificationenzymes（glutathione-S-transferase （GSTs）acetesase（ch）bolase（CaE））diothvelontdtriiolctseld 【Result】1） As the instar stage increased， the midgut α -amylase activity significantly decreased，while lipaseactivity significantly increased.TysinactiityitialleceasdndtniceasdGsdAchEctiitsceasdihotableecehE， whereas CarEactivity first decreasedandthen increased; 2）No significant correlation was observed between midgut α -amylase activity inthe4th-6thinstarlarvaeandGTsactivityinthe5th-6thinstarlarvae.However，GSTsactivityinthe4thinstarlarvaeshoweda significantcorrelationwith growthanddevelopment indicators，except for food intake;3）Except for α -amylaseandGSTs，theactivities ofotherenzyesinthe4tthistarvaweresignificantlypositivelycorrelatedwithodyweight，bodyength，eadidthfood intakefooduilatatedovesategaelyoelateditfoodosumptate;4）Ithstaraeoth anddevelopmentidicatorsereolysigicantlyoelateditharEatiityithodngthfoodutilatoneyd conversionatengsiielyeladandooumtonateenggatilyoreated【Coon】iiy of H. cunea larvae varied after feding on six host trees.By regulating enzyme activity， H. cunea larvae can control nutrient absorption andutilizationlloigfooalgrothndevelopntsglatiosoaceteidptabilittointd expands their host range.

Keywords：Hypntiacnea;digestivee;detoifcations;osttre;othnddevelopnt;utriialefect

美国白蛾Hyphantriacunea属鳞翅目Lepidoptera目夜蛾科Erebidae灯蛾亚科Arctiinae，原产于北美洲，是一种世界性检疫害虫[1，自1979年从朝鲜传入我国辽宁后，现扩散到我国13个省份[2-3]。（剩余17244字）