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丁香酚对烟草抗烟草花叶病毒的诱导作用初探

Preliminary study on eugenol-induced defense responses in tobacco against TMV

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【Author】 SU Hang1,2,3,4,WANG Chunmei2,3,4,CHEN Hao2,3,4,5,SHI Zhiqi2,3,4(1.Collage of Plant Protection,Nanjing Agricultural University,Nanjing 210095,China; 2.Institute of Food Safety and Quality,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China; 3.Key Laboratory of Food Safety Monitoring and Management,Ministry of Agriculture,Nanjing 210014,China; 4.Key Lab of Food Quality and Safety of Jiangsu Province(State Key Laboratory Breeding Base),Nanjing 210014,China; 5.College of Environmental Science and Engineering,Yangzhou University,Yangzhou 225009,Jiangsu Province,China)

【机构】南京农业大学植物保护学院；江苏省农业科学院食品质量安全与检测研究所；农业部食用农产品安全监控重点开放实验室；江苏省食品质量安全重点实验室(省部共建国家重点实验室培育基地)；扬州大学环境科学与工程学院；

【摘要】为探讨植物源化合物丁香酚对烟草抗烟草花叶病毒(TMV)的诱导作用,初步研究了丁香酚对接种TMV的烟草叶片中叶绿素和丙二醛(MDA)含量,防御酶苯丙氨酸解氨酶(PAL)、过氧化物酶(POD)和超氧化物岐化酶(SOD)活性,以及病程相关蛋白基因PR-1、PR-3、PR-5表达的影响。结果表明:丁香酚处理可促进叶绿素的合成,减轻烟草体内MDA的积累,提高PAL、POD和SOD的活性,增强PR-1、PR-3、PR-5基因的表达。表明丁香酚可提高植物的诱导抗病性,进而减轻TMV对烟草的危害。更多还原

【Abstract】 Physiological and biochemical approaches were used to study engenol-induced resistance of tobacco plant against tobacco mosaic virus(TMV).Pretreatment with eugenol before TMV inoculation enhanced the accumulation of chlorophyll and the transcript abundance of PR-1,PR-3,PR-5 in tobacco.Eugenol-induced decrease in the concentration of MDA might result from the increase of the activities of antioxidative enzymes,such as peroxidase(POD) and superoxide dismutase(SOD).Pretreatment with eugenol also induced the increase of the activity of phenylalanine ammonium lyase(PAL),which plays important role in protecting plant from virus attack.These results suggested that eugenol might attenuate the harmful effects of TMV on tobacco plant by modulating plant defense system.更多还原

【关键词】丁香酚；烟草；烟草花叶病毒；诱导抗性；
【Key words】 eugenol； tobacco； tobacco mosaic virus(TMV)； systemic acquired resistance；

【基金】江苏省农业科技自主创新资金(CX(11)244);江苏省自然科学基金(BK2011671)

【文献出处】农药学学报 ,Chinese Journal of Pesticide Science , 编辑部邮箱 ,2012年01期

【分类号】S435.72
【被引频次】35
【下载频次】393

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