Driving Pest Insect Populations: Agricultural Chemicals Lead to an Adaptive Syndrome in Nilaparvata Lugens Stål (Hemiptera: Delphacidae).
Driving Pest Insect Populations: Agricultural Chemicals Lead to an Adaptive Syndrome in Nilaparvata Lugens Stål (Hemiptera: Delphacidae).
复制标题
DOI：
10.1038/srep37430
复制
发表时间：
2016-11-23
影响因子：
4.6
通讯作者：
Wu JC
中科院分区：
文献类型：
--
作者：
You LL;Wu Y;Xu B;Ding J;Ge LQ;Yang GQ;Song QS;Stanley D;Wu JC
褐飞虱（BPH）是整个亚洲水稻的一种毁灭性害虫。本文记录了1992 ~ 2012年中国BPH生物地理范围的扩展情况。我们提出了一个假设，即范围的扩大是由于对过去40年来持续存在的农业化学品（杀虫剂和杀菌剂）的适应综合症。在生物地理方面，从1992年到1997年，BPH范围扩大了13%，从1997年到2012年又扩大了3%。在我们看来，这种扩张可能主要是由于JGM和其他农用化学品的增强效应，以及全球变暖。JGM处理增加了耐热性，记录为在40±1°C的热应激下死亡率下降（从80%下降到55%），在34°C时繁殖力增加（49%）。在分子水平上，JGM处理导致实验性BPH中乙酰辅酶a羧化酶（Acetyl Co-A carboxylase, Acc）和Hsp70 mRNA的丰度分别增加了25%和32%。RNAi沉默Hsp70和Acc消除了JGM对生殖力的影响，沉默Hsp70降低了JGM诱导的耐热性。与全球气候变化情景相结合，害虫物种的这种综合征有可能造成区域和全球规模的农业灾害。
The brown planthopper (BPH) is a devastating pest of rice throughout Asia. In this paper we document the BPH biogeographic range expansion in China over the 20-year period, 1992 to 2012. We posed the hypothesis that the range expansion is due to a syndrome of adaptations to the continuous presence of agricultural chemicals (insecticides and a fungicide) over the last 40 years. With respect to biogeography, BPH ranges have expanded by 13% from 1992 to 1997 and by another 3% from 1997 to 2012. In our view, such expansions may follow primarily from the enhancing effects of JGM, among other agricultural chemicals, and from global warming. JGM treatments led to increased thermotolerance, recorded as decreased mortality under heat stress at 40 ± 1 °C (down from 80% to 55%) and increased fecundity (by 49%) at 34 °C. At the molecular level, JGM treatments led to increased abundances of mRNA encoding Acetyl Co-A carboxylase (Acc) (up 25%) and Hsp70 (up 32%) in experimental BPH. RNAi silencing of Hsp70 and Acc eliminated the JGM effects on fecundity and silencing Hsp70 reduced JGM-induced thermotolerance. Integrated with global climate change scenarios, such syndromes in pest insect species have potential for regional- and global-scale agricultural disasters.
登录
查看更多内容
影响因子：
56.9
作者：
Chen, I-Ching;Hill, Jane K.;Thomas, Chris D.
通讯作者：
Thomas, Chris D.
影响因子：
5.2
作者：
Otuka A
通讯作者：
Otuka A
影响因子：
2.5
作者：
Klose, M. K.;Boulianne, G. L.;Atwood, H. L.
通讯作者：
Atwood, H. L.
影响因子：
1.3
作者：
Fu, Q;Zhang, ZT;Sun, ZX
通讯作者：
Sun, ZX
影响因子：
3.3
作者：
Li, Lei;Jiang, Yiping;Wu, Jincai
通讯作者：
Wu, Jincai