关键词: 水稻, 褐飞虱, 产卵, 胰蛋白酶抑制剂

Abstract:

Physical damage caused by ovipoistor and chemicals attached on the surface of insects’ eggs are both included in the direct stimulis of insects’ oviposition in the host plants which are the most important factors in inducing a wide range of defesive responses in plants. This article found that compare with feeding and physical treatments, oviposition of Brown Planthopper (BPH, Nilaparvata lugens (St.l)) can induce the expression of BBPI（Bowman Birk Proteinase Inhibitor） synthetase gene and cause the production of BBPI. Both of the expression levels of BBPI with oviposition treatment after 6 h and 12 h are higher than those of feeding and physical treatments. The results discribed above indicate that as to feeding damage, the rice can react to egg deposition of BPH and induce defensive responses, therefore conctrol the further damage of BPH.

Key words: Oryza sativa, Nilaparvata lugens (St.l), oviposition, bowman birk proteinase inhibitor