寄主植物对松墨天牛的营养效应及对体内酯酶与羧酸酯酶活性的影响

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1、第45卷第1期林业科学Vol145,No112009年1月SCIENTIASILVAESINICAEJan.,2009寄主植物对松墨天牛的营养效应及对体内3酯酶与羧酸酯酶活性的影响1231杨建霞郝德君周曙东戴华国(11南京农业大学植保学院南京210095;21南京林业大学森林资源与环境学院南京210037;31南京农业大学经济管理学院南京210095)摘要:分别用马尾松、雪松、火炬松、湿地松和黑松饲养松墨天牛,研究不同寄主植物对松墨天牛补充营养期的营养效应以及对体内酯酶与羧酸酯酶活性的影响。结果表明:不同寄主植物对补充营养期松墨天牛的营养效应、酯酶与羧酸酯酶的活性有显著影响。用马尾松和雪松饲

2、养的试虫,羽化后第5天体质量开始增加;其余3种树种饲养的试虫,至第7天体质量才开始增加。取食马尾松的松墨天牛雌、雄成虫,其相对取食量、相对代谢率和食物利用率均高于取食其他4种寄主植物的试虫;取食马尾松的松墨天牛雌、雄成虫体内酯酶和羧酸酯酶的活性也显著高于取食其他寄主的试虫;试验结果表明:马尾松是松墨天牛补充营养期的最适寄主。关键词:松墨天牛;寄主植物;营养效应;酯酶;羧酸酯酶中图分类号:Q965文献标识码:A文章编号:1001-7488(2009)01-0097-05EffectsofPlantHostsontheNutrientIndicesandActivityoftheEsterase

3、andCarboxylesteraseofMonochamusalternatus1231YangJianxiaHaoDejunZhouShudongDaiHuaguo(11DepartmentofPlantProtection,NanjingAgriculturalUniversityNanjing210095;21CollegeofForestryandEnvironment,NanjingForestryUniversityNanjing210037;31CollegeofEconomics&Management,NanjingAgriculturalUniversityNanjing

4、210095)Abstract:InordertoillustratetheeffectofdifferentplanthostsonnutrientfunctionandactivityoftheesteraseandcarboxylesteraseofMonochamusalternatusinthefood2replenishingperiod,M.alternatuswasfedrespectivelywithPinusmassoniana,Cedrusdeodara,P.teada,P.elliottiiandP.thunbergii.Theresultsshowedthatthe

5、reweresignificantdifferencesinthenutrientstatus,andactivityoftheesteraseandcarboxylesteraseoftheinsectfedwiththefivedifferentplants.TheinsectsfedwithP.massonianaorC.deodaragainedbodymassfromthefifthdayaftereclosion,andothersfedwiththeotherthreeplantsgainmassfromtheseventhday.Therelativeconsumptionr

6、ate,relativemetabolicrateandefficiencyofconversionofingestedfoodoftheadultfedwithP.massonianawerehigherthanthosefedwiththeotherfourplants.Furthermore,enzymeactivityofesteraseandcarboxylesteraseoftheM.alternatusfedwithP.massonianasignificantlyhigherthanthosefedwiththeotherfourplants.Theexperimentdem

7、onstratedthatP.massonianawasthemostpreferenceplantforM.alternatusinfood2replenishingperiodKeywords:Monochamusalternatus;planthosts;nutritionalindices;esterase;carboxylesterase松墨天牛(Monochamusalternatus)是危害松树