Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, Huazhong Agricultural University, Wuhan, 430070 Hubei, China; Department of Agricultural Biology, Faculty of Agriculture, University of Ruhuna, Kamburupitiya 81100, Sri Lanka.
J Insect Physiol. 2013 Oct;59(10):985-93. doi: 10.1016/j.jinsphys.2013.07.009. Epub 2013 Aug 3.
Transgenic Cry1Ac, Cry2Aa and Cry1Ca (Bt toxins) rice lines are well developed to manage lepidopteron pests in China. The impact of transgenic Bt rice on the non-target Brown Planthopper (BPH) has become an essential part of environmental risk assessment, however, scanty evidence is found addressing on developmental and molecular responses of BPH to the ingestion of Bt protein from transgenic rice. The focus of the current study is to examine the developmental characteristics and the expression profiles of gene in relation to digestion, detoxification and immune responses were examined. Our study strongly revealed that the tested Bt rice strains have no unfavorable effect on fecundity, survival and growth of BPH. Furthermore, each of the tested genes did not exhibit distinct expression pattern responding to non Bt parental cultivar, thus, it could be concluded that Bt rice have no detrimental effects on the physiological processes of digestion, detoxification and immune responses of BPH.
转 Cry1Ac、Cry2Aa 和 Cry1Ca（Bt 毒素）基因水稻系被开发用于防治中国鳞翅目害虫。转 Bt 水稻对非靶标褐飞虱的影响已成为环境风险评估的重要组成部分，然而，关于褐飞虱摄入转 Bt 蛋白后的发育和分子反应的证据很少。本研究的重点是研究与消化、解毒和免疫反应相关的发育特征和基因表达谱。我们的研究强烈表明，测试的转 Bt 水稻品系对褐飞虱的繁殖力、存活率和生长没有不利影响。此外，测试的每种基因对非 Bt 亲本品种均没有表现出明显的表达模式，因此，可以得出结论，转 Bt 水稻对褐飞虱的消化、解毒和免疫反应的生理过程没有不利影响。
