水稻,褐飞虱,稻虱缨小蜂的化学生态研究概述

Study in Chemical Ecology of Tritrophic Interactions Among Rice,Nilaparvata Lugens and Anagrus Nilaparvatae

控制实验与植物化学分析结果表明水稻挥发性物质和其它一些次生代谢物影响稻飞虱的寄主选择。水稻营养物质有类似作用,但它们的作用机理不同。天敌搜寻食物的行为依赖于来自不同营养阶层上的信息,化学信息起重要作用。在天敌选择寄主的过程中起作用的化学信息来自于寄主昆虫、食料植物或两者的相互作用,以及与寄主昆虫有联系的其它生物。其中来自寄主植物的化学信息非常重要。褐飞虱诱导的水稻挥发物对稻虱缨小蜂具有明显的引诱作用。稻虱缨小蜂同样依赖于稻飞虱的化学信息素来寻找寄主。

The results of control tests and phytochemistry analysis show that volatiles and allelochemicals affect host selection behavior of Nilaparvata lugens. It is similar to the role of nutriment. But the mechanism of their affecting host selection is different. Hunting food behavior of natural enemy depends on information from various trophic levels, especially chemical information. Chemical information is from host insect, plant or their interactions and other species relating to host insect. Above all, chemical information of host plant is important to attract natural enemy. Attracting role of Rice volatiles induced by Nilaparvata lugens is obvious. Anagrus nilaparvatae also depends on chemical pheromone of Nilaparvata lugens to seek host. But it needs further research that the components of chemical pheromone and their role.