Osa-miR162a Enhances the Resistance to the Brown Planthopper via & alpha;-Linolenic Acid Metabolism in Rice (Oryza sativa)

文献类型： 外文期刊

第一作者： Chen, Jie

作者： Chen, Jie;Liu, Qin;Yuan, Longyu;Shi, Qingxing;Qi, Guojun;Chen, Ting;Zhang, Zhenfei;Chen, Jie;Shen, Wenzhong;Shen, Wenzhong;Shen, Wenzhong

作者机构：

关键词： rice; brown plant hopper; microRNA; miR162a; resistance

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.1； 五年影响因子：6.3 ）

ISSN： 0021-8561

年卷期： 2023 年 71 卷 31 期

页码：

收录情况： SCI

摘要： The brown planthopper (BPH) is the most serious pestcausing yieldlosses in rice. MicroRNAs (miRNAs) are emerging as key modulatorsof plant-pest interactions. In the study, we found that osa-miR162ais induced in response to BPH attack in the seedling stage and tunesrice resistance to the BPH via the & alpha;-linolenic acid metabolismpathway as indicated by gas chromatography/liquid chromatography-massspectrometry analysis. Overexpression of osa-miR162a inhibited thedevelopment and growth of the BPH and simultaneously reduced the releaseof 3-hexenal and 3-hexen-1-ol to block host recognition in the BPH.Moreover, knockdown of OsDCL1, which is targetedby osa-miR162a, inhibited & alpha;-linolenic acid metabolism to enhancethe resistance to the BPH, which was similar to that in miR162a-overexpressingplants. Our study revealed a novel defense mechanism mediated by plantmiRNAs developed during the long-term evolution of plant-hostinteraction, provided new ideas for the identification of rice resistanceresources, and promoted a better understanding of pest control.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序