资源描述：
《辣椒细菌性叶斑病》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、EuropeanJournalofPlantPathology108:4149,2002.©2002KluwerAcademicPublishers.PrintedintheNetherlands.Inductionofsystemicacquiredresistanceinpepperplantsbyacibenzolar-S-methylagainstbacterialspotdisease12133RobertoBuonaurio,LucianoScarponi,MeryFerrara,PaolaSidotiandAngeloBe
2、rtona1DipartimentodiArboricolturaeProtezionedellePiante-UniversitadegliStudidiPerugia-BorgoXXGiugno,`74,06121Perugia,Italy(Phone:+39755856461;Fax:+39755856482;E-mail:buonaurio@unipg.it);2CentrodiStudiosullaChimicaeBiochimicadeiFitofarmacidelCNRBorgoXXGiugno,72-06121Perug
3、ia,3Italy;SyngentaProtezionePianteS.p.A.,ViaS.Sofia,21,20122Milano,ItalyAccepted3October2001Keywords:acibenzolar-S-methyl,Capsicumannuum,persistence,systemicacquiredresistance,translocation,Xanthomonascampestrispv.vesicatoriaAbstractTheabilityofacibenzolar-S-methyltoinduc
4、eresistanceinpepperplantsagainstXanthomonascampestrispv.vesicatoriawasinvestigatedinbothgrowthchamberandopenfieldconditions.Growthchamberexperimentsshowedthatacibenzolar-S-methyl(300µM)treatmentprotectspepperplantssystemicallyandlocallyagainstX.campestrispv.vesicatoria.Ev
5、idenceforthiswasareductioninthenumberanddiameterofbacterialspotsandbacterialgrowthinplanta.Systemicprotectionwasalsoexertedbytheacibenzolar-S-methylacidderivative,CGA210007,whichmaybeproducedbyhydrolysisintheplant.Theefficacyofacibenzolar-S-methylwasalsofoundinopenfieldcon
6、ditions,wherebothleavesandfruitwereprotectedfromthedisease.Thehighestefficacy(about67%)wasobtainedbysprayingtheplants67timesevery812dayswithamixtureofacibenzolar-S-methylandcopper−1hydroxide(2.5+40ghlactiveingredient).Persistenceandtranslocationdataobtainedfromthegrowthch
7、amberexperimentsrevealedapersistenceofacibenzolar-S-methyllastingfivedaysaftertreatmentwithrapidtranslocationandnegligiblelevelsofacidderivativeformation.Sincetheprotectionexertedbyacibenzolar-S-methylagainstbacterialspotdiseasewasobservedwhentheinducerwascompletelydegrad
8、ed,itwouldappeartobeduetoSARactivation.IntroductiongenesBs1,Bs2andBs3,couldtriggertheappearanceofnewbac
