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《GEOGRAPHIC VARIATION IN ALKALOID PRODUCTIONIN Conium maculatum POPULATIONS EXPERIENCING生物碱生产的地理变异 黄花芋种群的体验 差分草食动物》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、JournalofChemicalEcology,Vol.31,No.8,August2005(#2005)DOI:10.1007/s10886-005-5921-xGEOGRAPHICVARIATIONINALKALOIDPRODUCTIONINConiummaculatumPOPULATIONSEXPERIENCINGDIFFERENTIALHERBIVORYBYAgonopterixalstroemerianaEVACASTELLS,1,*MARKA.BERHOW,2STEVENF.VAUGHN,21andMAYR.BERENBAUM1DepartmentofEntomo
2、logy,UniversityofIllinois,320MorrillHall,505S.GoodwinAve.,Urbana,IL61801,USA2USDA,ARS,NCAUR,1815N.UniversityStreet,Peoria,IL61601,USA(ReceivedDecember31,2004;acceptedApril7,2005)AbstractConiummaculatum,aEurasianweednaturalizedinNorthAmerica,containshighconcentrationsofpiperidinealkaloidsthat
3、actaschemicaldefensesagainstherbivores.C.maculatumwaslargelyfreefromherbivoryintheUnitedStates,untilapproximately30yrago,whenitwasreassociatedviaaccidentalintroductionwithamonophagousEuropeanherbivore,theoecophoridcaterpillarAgonopterixalstroemeriana.Atpresent,A.alstroemerianaisfoundinaconti
4、nuumofreassociationtimeandintensitieswithC.maculatumacrossthecontinent;inthePacificNorthwest,A.alstroemerianacancauseseveredamage,resultinginsomecasesincompletedefoliation.Studiesinbiologicalcontrolandinvasionbiologyhaveyettodeterminewhetherplantsreassociatedwithasignificantherbivorefromtheare
5、aofindigeneityincreasetheirchemicaldefenseinvestmentinareasofintroduction.Inthisstudy,wecomparedthreelocationsintheUnitedStates(NewYork,Washington,andIllinois)whereC.maculatumexperiencesdifferentlevelsofherbivorybyA.alstroemerianatodeterminetheassociationbetweentheintensityoftheinteraction,a
6、smeasuredbydamage,andchemicaldefenseproduction.TotalalkaloidproductioninC.maculatumwaspositivelycorrelatedwithA.alstroemerianaherbivorylevels:plantsfromNewYorkandWashington,withhigherherbivorylevels,investedtwoandfourtimesmoreNtoalkaloidsynthesisthandidplantsfromIllinois.Individualplantswith
7、lowerconcentrationsofalkaloidsfromasinglelocationinIllinois*Towhomcorrespondenceshouldbeaddressed.E-mail:castells@life.uiuc.edu16930098-0331/05/0800-1693/0#2005SpringerScience+BusinessMedia,Inc.1694CASTELLSETAL.experiencedmoredamagebyA.alstroemeria
