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时间:2020-04-19
《褐色橘蚜在健康与CTV植株上的EPG比较.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、山地农业生物学报33(2):036~039,2014JournalofMountainAgricuhureandBiology褐色橘蚜在健康与CTV植株上的EPG比较何应琴,陈文龙h,鲁卓越,周常勇,李中安,王雪峰,李太盛(1.贵州大学昆虫研究所,贵州山地农业病虫害重点实验室,贵州贵阳550025;2.中国农业科学院柑桔研究所,重庆北碚400712)摘要:利用刺探电位图谱(EPG)技术对褐色橘蚜Toxopteracitricida(Kirkaldy)在健康与感染CTV的植株上的取食行为进行了比较研究。结果显示,褐色橘蚜在二者上均产生8种取食波形,分别为非刺探波(np波)、路径波(A波、B波、C
2、波)、Pd波、韧皮部分泌唾液波(El波)、韧皮部被动吸食波(E2波)以及木质部主动吸食波(G波)。刺探过程中,二者非刺探总时间(np波)存在差异;褐色橘蚜在健康植株上的刺探次数最多且c波的总持续时间最长,与感病植株差异显著。感病植株上,E1波的次数和持续时间均显著多于健康植株。褐色橘蚜在感病植株上E2波的总持续时间为(241.33±24.12min),显著长于在健康植株上(160.30±24.63min)的持续时间。由此可初步推断,感染CTV的植株在一定程度上会增加褐色橘蚜获毒与传毒的几率。关键词:褐色橘蚜;刺吸电位图谱(EPG);取食行为;传毒;柑橘衰退病毒中图分类号:$433.3文献标识码
3、:A文章编号:1008—0457(2014)02—0036—04EPGanalysisoftheToxopteracitricidaonhealthyandCTV——infectedcitrusHEYing.qin,CHENWen1ong,LUZhuo—yue,ZHOUChang—yong,LIZhong—an,WANGXue-feng,LITai.shen(1.GuizhouKeyLaboratoryofPlantDiseaseandPestManagementforMountainAgriculture,Institu—teofEntomology,GuizhouUniversity,Gu
4、iyangGuizhou550025,China;2.CitrusResearchInstitute,ChineseA—cademyofAgriculturalSciences,BeibeiChongqing400712,China)Abstract:FeedingbehaviorsofToxopteracitricida(Kirkaldy)onhealthyandCTV—infectedcitruswereinves—tigatedbyelectricalpenetrationgraph(EPG)technique.TheresultsexhibitedthattherewereeightE
5、PGwaveformsofthecitricidafeedingonhealthyandinfectedplants:Non—penetrationwaveform(waveformnp),pathwaywaveforms(waveformA,BandC),waveformPd,salivasecretioninphloem(waveformE1),phloemsapingestion(waveformE2),andxylemsapingestion(waveformG).Duringtheprocessofthepenetration,thedurationofthenon—penetrat
6、ionperiodwaveforms(waveformnp)weredifferentbetweenthehealthyandthediseasedplants.PenetrationtimesandthedurationofwaveformConthehealthyplantswerebothsignificantlylongerthanthatonthediseasedplants.Nevertheless,numbersandtotaldurationofwaveformE1onthediseasedplantsweresignificantlylongerthanthoseontheh
7、ealthyplants(P<0.05).TotaldurationofE2ofcitricidaonthediseasedplants(241.33±24.12min)wasobviouslylongerthanitonthehealthy(160.30±24.63min).Hence,itcouldbeinferredthattheprobabilityofviIMSacquisitionan
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