虫食与熏蒸对马尾松苗木针叶酚酸含量的影响  

Effects of insect-damaged,MeJA and terpenes treatment on the induction of phenolic acids in needles of Pinus massoniana seedlings

作　　者：邓文红[1] 沈应柏[2] 李镇宇[3] 蒋湘宁[2] 

机构地区：[1]北京林业大学生物中心 [2]北京林业大学生物科学与技术学院 [3]北京林业大学森林培育与保护教育部重点实验室

出　　处：《北京林业大学学报》2010年第1期39-43,共5页Journal of Beijing Forestry University

基　　金：国家自然科学基金重点项目(30330490);国家林业局重点项目(2006-59);"十一五"国家科技支撑计划项目(2006BAD01A15;2006BAD24B04);长江学者与创新团队发展计划项目(PCSIRT0607)

摘　　要：以马尾松为实验材料,用反相高效液相色谱检测了马尾松毛虫咬食、外源茉莉酸甲酯和萜烯混合物熏蒸处理4h后,损伤针叶、相邻姊妹针叶、系统上枝针叶和系统下枝针叶中酚酸含量的变化情况。结果表明:虫害、10μmol/L茉莉酸甲酯和10μmol/L萜烯混合物熏蒸,损伤枝、姊妹枝和系统枝中酚酸含量除虫害后的系统下枝略有降低外,其他均明显升高。说明茉莉酸甲酯和萜烯类物质作为植物体内伤的报警信号,能代替虫害等外界刺激启动相似的信号防御系统,起到防御外界伤害的作用。In this study,needles of Pinus massoniana seedlings were treated with Dendrolimus punctatus herbivory,methyl jasmonate suffocation,or terpenes suffocation for 4 hours. We then used HPLC to determine the changes of content of phenolic acids in the wounded shoots,sister shoots,systematic upper shoots,and the systematic lower shoots. Results showed that except the systematic lower shoots by insect-damaged,content of phenolic acids in the wounded shoots,sister shoots and the systematic shoots increased significantly after D. punctatus damage,MeJA treatment （10 μmol/L） and terpenes treatment （10 μmol/L）,indicating that MeJA and terpenes,as the warning signals of the inner damage of plants,can activate the similar defensive systems as what insect-damage does,and therefore,protect plants from the outside damage.

关 键 词：酚酸 马尾松苗木 昆虫取食 气体防御信号 

分 类 号：S763.712.48[农业科学—森林保护学]