水稻挥发性信息化合物对昆虫的作用

Effects of rice volatile infochemicals on insects

植物挥发性化合物是联系植物、害虫和天敌间 3层营养关系的关键信息因子 ,是害虫防治理论与实践的基础 .首先 ,介绍了水稻挥发性信息化合物的基本化学特征及其在植食性昆虫和天敌昆虫寄主选择中的作用 ;其次 ,分析了水稻挥发性信息化合物的产生与作用机制及其生态学功能和水稻挥发性信息化合物研究中存在的问题 ;最后 ,展望了水稻挥发性信息化合物的研究前景 .对水稻挥发性化合物的更进一步研究有两个方向 ,一是对存在于水稻体内 ,启动相关代谢途径的小分子信号物质的生理生化和分子生物学特性进行研究 ;二是研究捕食性节肢动物对信息化合物的接收。

Plant volatile is not only the key of the relationship among plant, herbivore and its natural enemy, but also the foundation for the theory and practice of pest manage. In this paper, the chemical characteristic of rice volatile and its function among herbivore and its natural enemy were reviewed. The application and development direction of rice volatile infochemicals were proposed. Two directions to study the rice volatile infochemicals, which could be used in pest control, were also discussed. One was the physiology and biochemistry of little molecule signals, which was the key of rice second metabolize, and the other was the base of sense, identify and learn of pest insect to rice volatile infochemicals.