Transgenerational hormetic effects of sublethal dose of flupyradifurone on the green peach aphid, Myzus persicae (Sulzer) (Hemiptera: Aphididae)
Transgenerational hormetic effects of sublethal dose of flupyradifurone on the green peach aphid, Myzus persicae (Sulzer) (Hemiptera: Aphididae)
复制标题
DOI：
10.1371/journal.pone.0208058
复制
发表时间：
2019-01-24
期刊：
影响因子：
3.7
通讯作者：
Gao, Xiwu
中科院分区：
文献类型：
--
作者：
Tang, Qiuling;Ma, Kangsheng;Gao, Xiwu
研究了丁烯内酯亚致死量杀虫剂氟吡射线呋喃酮对烟粉虱的抑制和刺激作用，并将其应用于害虫综合防治。叶浸法测定结果表明，氟吡喃酮对桃小实蝇成虫有很强的毒力，48hLC_(50)为8.491 mg/L。采用年龄阶段两性生命表的方法，研究了氟吡喃酮对桃小实蝇成虫及其后代(F-1和F-2)的毒杀作用。一方面，氟虫腈对棉铃虫的传代生活史特征有明显的负面影响，如降低F-0的成虫寿命和繁殖力，缩短三龄、四龄若虫历期，缩短F-1的成虫前期和生殖前期，缩短F-2的生殖天数和成虫寿命。另一方面，也观察到氟虫腈处理对F-1代前期成虫历期、成虫生殖天数和繁殖力的促进作用。与对个体性状的刺激一致，氟虫腈处理组的F-1代净繁殖率(R-0)较高，而F-2代的平均世代时间(T)较短，而对F-1和R-0的内禀增长率(R)、有限增长率(Lambda)和T以及F-2的r和lambda没有显著影响。这些结果表明，暴露于亚致死浓度的氟吡啶呋喃酮的成虫对F-1有兴奋效应，对F-2也有负面影响。我们的研究结果将有助于评估氟吡射线呋喃酮对烟粉虱的总体效果，并在使用氟吡放射性呋喃酮防治烟粉虱时应考虑其节律效应。
Both inhibitory and stimulatory (known as hormesis) effects of the sublethal flupyradifurone, a butenolide insecticide, on Myzus persicae Sulzer (Hemiptera: Aphididae) were investigated for incorporating it into integrated pest management (IPM). A leaf-dip bioassay showed that flupyradifurone was very toxic against adult M. persicae with a 48 h LC50 of 8.491 mg/L. Using the age-stage two-sex life table approach, we assessed the effects of LC25 of flupyradifurone on adult M. persicae and its progeny (F-1 and F-2). On the one hand, aphids exposed to flupyradifurone had significantly negative effects on the life history traits acrossing the generations, such as reduced the adult longevity and fecundity of F-0, shortened the duration of third instar and fourth instar nymphs, preadult period and the pre-reproductive period of F-1, and decreased the reproductive days and adult longevity of F-2. On the other hand, stimulatory effects on the duration of pre-adult, adult reproductive days, and reproduction of F-1 were observed in the flupyradifurone-treated aphids. Consistently with the stimulation on individual traits, a higher net reproductive rate (R-0) of F-1 and a shorter mean generation time (T) of F-2 were observed in the flupyradifurone-treated aphids, although the other population parameters including the intrinsic rate of increase (r), finite rate of increase (lambda) and T of F-1 and R-0, r and lambda of F-2 were not significantly affected. These results revealed that adult M. persicae exposed to sublethal concentration of flupyradifurone can induce hormetic effects on F-1, and also cause negative effects on F-2. Our results would be useful for assessing the overall effects of flupyradifurone on M. persicae and the hormetic effects should take into consideration when use flupyradifurone for control M. persicae.