烟草科技2017，Vol.50Issue(8)：16-22,7.
不同口器昆虫取食对烟草信号分子及次生代谢物的影响
Effects of different insect mouthparts feeding on tobacco leaf's signal molecules and secondary metabolite contents
摘要
Abstract
To investigate the effects of insects with different mouthparts feeding on tobacco leaves on the signal molecules and secondary metabolites in tobacco, Myzus persicae (with a piercing-sucking mouthpart) and Spodoptera litura (with a chewing mouthpart) were fed on tobacco leaves. The contents of alkaloids and sucrose ester (SE) in tobacco leaves were determined 3, 6, 10, and 15 days after feeding and the contents of nitric oxide (NO) and jasmine acid (JA) in leaves and roots were determined 3, 6, 9, and 12 hours after feeding. The results showed that: After M. persicae and S. litura feeding, 1) the contents of nicotine, nornicotine and total alkaloids increased first, peaked on the 6th day and then decreased. Comparing with the control, the contents of nicotine, nornicotine and total alkaloids in tobacco leaves raised by 89.80％ , 27.92％ and 82.20％ after M. persicae feeding, and by 84.06％ , 34.31％ and 79.15％ after S. litura feeding, respectively; 2) the content of SE in tobacco leaves reached its highest on the 10th day and increased by 60.14％ and 65.90％ comparing with the control, respectively; 3) the contents of NO in leaves and roots increased first, peaked at the 9th hour and then decreased. The contents of JA in leaves and roots increased significantly. In leaves, JA increased first and then decreased, while JA continued to raise in roots.关键词
烟草/烟蚜/斜纹夜蛾/次生代谢物/信号分子/口器Key words
Tobacco/Myzus persicae (Sulzer)/Spodoptera litura/Secondary metabolite/Signal molecule/Mouthpart分类
农业科技引用本文复制引用
张艳敏,白建保,刘剑君,陈翔,周晓峰,程新胜..不同口器昆虫取食对烟草信号分子及次生代谢物的影响[J].烟草科技,2017,50(8):16-22,7.基金项目
河南省烟草公司科技项目"烟粉虱防治的关键技术研究与示范"(20130011). （20130011）
