Pancreatic triglyceride lipase is involved in the virulence of the brown planthopper to rice plants

doi:10.1016/S2095-3119(20)63188-4

Journal of Integrative Agriculture ›› 2020, Vol. 19 ›› Issue (11): 2758-2766.DOI: 10.1016/S2095-3119(20)63188-4

所属专题：昆虫分子生物学合辑Insect Molecular Biology；昆虫和植物互作合辑Insect and Plant Interact

收稿日期:2019-12-25 出版日期:2020-11-01 发布日期:2020-10-15

Pancreatic triglyceride lipase is involved in the virulence of the brown planthopper to rice plants

YUAN Long-yu, HAO Yuan-hao, CHEN Qiao-kui, PANG Rui, ZHANG Wen-qing

State Key Laboratory of Biocontrol/School of Life Sciences, SunYat-sen University, Guangzhou 510275, P.R.China

Received:2019-12-25 Online:2020-11-01 Published:2020-10-15
Contact: Correspondence ZHANG Wen-qing, Tel: +86-20-39332963, Fax: +86-20-39943515, E-mail: lsszwq@mail.sysu.edu.cn
About author:YUAN Long-yu, E-mail: bravory@163.com;
Supported by:
This work was funded by the National Key Research and Development Program of China (2017YFD0200900) and the Natural Science Foundation of Guangdong Province, China (2017A030310210).

摘要/Abstract

Abstract:

The brown planthopper (BPH), Nilaparvata lugens, an important rice insect pest, can enhance its virulence to BPH-resistant rice within as short a span as several generations. Here, we cloned a pancreatic triglyceride lipase (PTL) gene (NlPTL) in N. lugens, and found that its mRNA level was higher in the high virulence population (fed on variety Rathu Heenati, P-RH) than in the low virulence population (fed on variety Taichung Native 1, P-TN1). Knocking down NlPTL caused BPH individuals to spend more time in non-penetration and the pathway phases and less time feeding on the phloem of rice plants; these changes consequently decreased food intake, lipid content, survival rate, and fecundity in the insects. These findings reveal for the first time that PTL in BPH is involved in its virulence to rice plants.

Key words: pancreatic triglyceride lipase , Nilaparvata lugens , virulence , rice , lipid

. [J]. Journal of Integrative Agriculture, 2020, 19(11): 2758-2766.

YUAN Long-yu, HAO Yuan-hao, CHEN Qiao-kui, PANG Rui, ZHANG Wen-qing. Pancreatic triglyceride lipase is involved in the virulence of the brown planthopper to rice plants[J]. Journal of Integrative Agriculture, 2020, 19(11): 2758-2766.

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Pancreatic triglyceride lipase is involved in the virulence of the brown planthopper to rice plants

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