亚致死浓度烯啶虫胺对水稻抗性物质及褐飞虱生殖参数的影响  

Effects of sublethal concentrations of nitenpyram on resistance substances in rice and reproductive parameters of the brown planthopper Nilaparvata lugens

作　　者：王怀奇 董俏俏 王婷婷 邓迪 丁雨婷 张文 赵旭东 戈林泉[1] Wang Huaiqi;Dong Qiaoqiao;Wang Tingting;Deng Di;Ding Yuting;Zhang Wen;Zhao Xudong;Ge Linquan(College of Plant Protection,Yangzhou University,Yangzhou 225009,Jiangsu Province,China)

机构地区：[1]扬州大学植物保护学院,江苏扬州225009

出　　处：《植物保护学报》2024年第3期719-730,共12页Journal of Plant Protection

基　　金：国家自然科学基金面上项目(32072415);江苏省重点研发计划(BE2022345)。

摘　　要：为明确烯啶虫胺对褐飞虱Nilaparvata lugens的防控效果,采用稻茎浸渍法测定亚致死浓度烯啶虫胺对水稻生理生化指标以及褐飞虱雌成虫繁殖力的影响。结果表明,亚致死浓度烯啶虫胺处理后,水稻中草酸含量在第2天时无明显变化,在第4天时升高了20.5%;类黄酮含量分别升高了9.6%和40.6%;游离氨基酸含量分别下降了20.1%和42.4%;蔗糖含量在第2天时与对照间无显著差异,在第4天时升高了38.5%。亚致死浓度烯啶虫胺对褐飞虱生殖存在显著影响,雌成虫羽化2 d和4 d时,卵巢中可溶性蛋白含量分别下降了31.2%和40.9%;脂肪体中可溶性蛋白含量分别下降了19.0%和38.8%。亚致死浓度烯啶虫胺处理抑制了雌成虫卵巢发育,褐飞虱卵黄原蛋白(Nilaparvatalugensvitellogenin,NlVg)基因表达量在第2天时与对照间无显著差异,在第4天下降了57.5%;同时显著影响了褐飞虱生殖力,雌成虫产卵量减少了58.1%,产卵历期缩短了36.7%,寿命缩短了28.0%,但对雌成虫产卵前期无显著影响。表明亚致死浓度烯啶虫胺处理后可能通过诱导水稻次生代谢产物含量上升来提高水稻对褐飞虱的抗性,而且对褐飞虱繁殖力也有显著影响。To elucidate the control efficacy of sulfoxaflor against the brown planthopper,Nilaparvata lugens,the rice stem impregnation method was employed to determine the effects of sublethal concentrations of nitenpyram on physiological and biochemical indices of rice,as well as on the reproductive capacity of female brown planthoppers.The results showed that the oxalic acid content of rice treated with sublethal concentrations of nitenpyram for two and four days showed no significant difference at two days and increased by 20.5%at four days.Flavonoids levels increased by 9.6%and 40.6%,respectively.The content of free amino acids decreased by 20.1%at two days and 42.4%at four days,respectively.The sucrose content showed no significant difference at two days but increased by 38.5%at four days after treatment with sublethal concentrations of nitenpyram.The sublethal concentration of nitenpyram significantly affected the reproduction of the brown planthopper.Soluble protein content in the ovaries of female adults decreased by 31.2%and 40.9%on days two and four post-emergence,respectively,and by 19.0%and 38.8%in the fat body.Nitenpyram inhibited ovarian development in female adults,with Nilaparvata lugens vitellogenin(NlVg)gene expression showing no significant difference at two days after emergence and a 57.5%decrease at four days after emergence.Additionally,it significantly affected the reproductive capacity of the brown planthopper,with the number of eggs laid by females decreasing by 58.1%,the oviposition period shortening by 36.7%,and lifespan decreasing by 28.0%,although there was no significant impact on the pre-oviposition period.This indicates that sublethal concentrations of nitenpyram induce an increase in secondary metabolites in rice to enhance resistance against the brown planthopper and significantly impact the reproductive capacity of the pest.

关 键 词：烯啶虫胺 褐飞虱 水稻 抗性物质 生殖参数 

分 类 号：S435.112.3[农业科学—农业昆虫与害虫防治]