State Key Laboratory of Rice Biology & Ministry of Agriculture and Rural Affairs Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Insect Sciences, Zhejiang University, Hangzhou, 310058, China.
State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
Sci Rep. 2020 Oct 2;10(1):16423. doi: 10.1038/s41598-020-73465-7.
The potential risks of Bt rice on non-target arthropods (NTAs) should be evaluated and defined before commercial production. Recently, effects of Bt rice on NTAs under abiotic and biotic stress conditions attracted much attention. Here we reported the effects of Bt rice T1C-19 (Cry1C rice) on the non-target herbivore, Nilaparvata lugens (rice brown planthopper, BPH) with or without RDV (rice dwarf virus) infection conditions. BPH showed no feeding and oviposition preference between Bt rice T1C-19 and its non-Bt parental rice Minghui 63 (MH63), as well as between RDV-infected and RDV-free rice plants. Meanwhile, rice type, RDV infection status, and their interaction had little impacts on the survival, development and fecundity of BPH. By comparison with non-Bt control, Bt rice T1C-19 with or without RDV infection had no significant effects on the life-table parameters of BPH including r, R, T, DT and λ. Thus, it could be concluded that Bt rice T1C-19 doesn't affect the ecological fitness of BPH either under RDV stress or not.
在商业生产之前，应该评估和定义转 Bt 水稻对非靶标节肢动物（NTAs）的潜在风险。最近，转 Bt 水稻在非生物和生物胁迫条件下对 NTAs 的影响引起了广泛关注。在这里，我们报道了转 Bt 水稻 T1C-19（Cry1C 水稻）对非靶标草食性昆虫褐飞虱（Nilaparvata lugens，BPH）在有或没有 RDV（水稻矮缩病毒）感染条件下的影响。在 Bt 水稻 T1C-19 及其非 Bt 亲本水稻明恢 63（MH63）之间，以及在 RDV 感染和非 RDV 感染的水稻植株之间，褐飞虱没有表现出取食和产卵偏好。同时，水稻类型、RDV 感染状况及其相互作用对褐飞虱的存活率、发育和繁殖力几乎没有影响。与非 Bt 对照相比，有或没有 RDV 感染的转 Bt 水稻 T1C-19 对褐飞虱的生命表参数（包括 r、R、T、DT 和 λ）没有显著影响。因此，可以得出结论，在 RDV 胁迫或非胁迫下，转 Bt 水稻 T1C-19 不会影响褐飞虱的生态适应性。
