青島市懸鈴木上根結(jié)線蟲的種類及致病性初探.pdf

1、Y774568分類號：$4324密級：飛嚼差氣夭等學(xué)位論文單位代碼：10019學(xué)號：211038青島市懸鈴木上根結(jié)線蟲的種類及致病性初探TheIdentificationandPathogenicityTestingofMeloidogyneSpeciesonSycamoreinQingdao研究‘l：：李君實(shí)指導(dǎo)教師：李健強(qiáng)教授合作指導(dǎo)教師：趙洪海副教授申請學(xué)位類別：農(nóng)業(yè)推廣碩土專業(yè)領(lǐng)域名稱：種植業(yè)領(lǐng)域研究方向：植物病理學(xué)所在學(xué)院：農(nóng)

2、業(yè)與生物技術(shù)學(xué)院TheIdentificationandPathogenicityTestingofMeloidogyneSpeciesonSycamoreinQingdaoAbstractTheinvestigationsofrootknotnematodediseaseofsycamoreinQingdaoanditscircumjacentcitieswereconducted。Among15collectedMeloidogyn

3、epopulations，twoMeloidog咿especieswemidentified∞Meloidogyneparaplatani(anewspeciesfoundbyZhao，1999，unpublished)andMarenaria(Neal，1889)Chit、Ⅳ00d，1949BymeansofmorphologicalstudyMparaplatanidifferedfromitsrelatedspecies—Mpla

4、taniHirschmann1981and膨arenar／ainperinealpattemoffemalesizeandmorphologyofmalest)’letrDNAITSRFLPanalysisshowedthatrDNA—ITSofMparaplatanieouldn’tbezymohydro|yzedbytestrictionincisionenzymeHaellIwhichdifferedfrom艇arenapiaHo

5、sttestingindicatedthat膨paraplatanicouldformafewgallsontobaccowithouteggmass_forminganditcouldnotformgallsoreggmassesootomatoandwatermelonwhichdifferedfrom只plataniInpreliminaryhostrangetestingbetween20ornamentalplants，Mpa

6、raplataniformedgallsonlyonZantedeschiaaethiopica(Linn)SprangThemorphologicalstudyshowedthatthepopulationofMarenariahadthecharacteristicsofthespeciesinperinealpattemoffemaleandmorphologyofstyletbaseofmaleTheesterase(ESl)p

7、henotypeanalysisindicatedthatthepopulationofMarenariapresentedA2ESTphenotypeWithlimitedgeographicaldistributionnarrowhostrangeandbadadaptabilityMparaplatanihadlowerrisktoagricultureandforestrybutwasofgreatimportanceinpla