水杨酸甲酯、苯骈噻唑及茉莉酸甲酯对合作杨防御物质的影响  

Effects of BTH,MeSA and MeJA on Defensive Components of Populus simonii×P. pyramidalis

作　　者：高海波[1] 沈应柏[2] 

机构地区：[1]临沂师范学院生命科学学院,山东临沂276005 [2]北京林业大学生物科学与技术学院,北京100083

出　　处：《西北林学院学报》2007年第6期32-35,共4页Journal of Northwest Forestry University

基　　金：国家自然科学基金(30170764)

摘　　要：采用熏蒸的方法,研究了3种人工合成挥发性物质对合作杨防御物质的诱导能力。结果表明:水杨酸甲酯和苯骈噻唑对合作杨植株体内产生于茉莉酸信号转导途径的萜烯类挥发物的释放具有抑制作用;而用茉莉酸甲酯对合作杨植株萜烯类挥发物的释放具有明显的促进作用。结合植物体内的直接防御物质多酚氧化酶和过氧化物酶活性的测定,表明茉莉酸信号转导途径在诱导合作杨间接和直接防御能力的过程中起着关键作用。The present article studied the effects of three synthesized volatiles on the induction of defensive components of Populus simonii×P.pyramidalis c.v by the method of fumigation.Treatment of plants with gaseous BTH and MeSA suppressed the productions of terpenoids which involved in jasmonate-signal transduction pathways.However,MeJA could not only prompted the release of volatile signals,but also enhanced enzyme activity of PPO and POD in the leaves.The results indicated that jasmonate-signal transduction pathway played crucial role in the induction of direct and indirect defense of P.simonii×P.pyramidalis c.v.

关 键 词：合作杨 水杨酸甲酯 苯骈噻唑 茉莉酸甲酯 

分 类 号：S792.119.01[农业科学—林木遗传育种]