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(E)-β-Farnesene Protects Rice from Rice Striped Stem Borer Attack by Inhibiting Its Beneficial Gut Microbes

文献类型： 外文期刊

作者： Yang, Lei 1 ; Zhang, Pei-tao 1 ; Li, Miao-miao 1 ; Wang, Xin-yu 1 ; Zhao, Qing-qing 1 ; Lin, Jun-jie 1 ; Zhao, Jia-qi 1 ; Liu, Bao-sheng 2 ; Li, Shuai 2 ; Ji, Rui 2 ; Fang, Ji-chao 2 ; Sun, Yang 1 ;

作者机构： 1.Anhui Normal Univ, Coll Life Sci, Anhui Prov Key Lab Mol Enzymol & Mech Major Dis, Lab Conservat & Use Important Biol Resources Anhui, Wuhu 241002, Peoples R China

2.Jiangsu Acad Agr Sci, Inst Plant Protect, Nanjing 210014, Peoples R China

3.Nanjing Agr Univ, Coll Plant Protect, Nanjing 210095, Peoples R China

关键词： Chilo suppressalis; gutmicrobes; comparativetranscriptome analysis; (E)-beta-farnesene; rice defense; terpene synthases

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.2； 五年影响因子：6.4 ）

ISSN： 0021-8561

年卷期： 2024 年 72 卷 43 期

页码：

收录情况： SCI

摘要： Herbivores harbor gut microbes that affect their development and contribute to their nutrition, reproduction, and survival. Plant defenses could target the herbivore's beneficial gut microbes, but this has not been well studied in rice. In this context, we identified a rice terpene synthase gene, Os04g0341500. It was strongly induced after feeding by rice striped stem borers (SSB, Chilo suppressalis), and it can catalyze the (E)-beta-farnesene (E beta f) synthesis. When added to artificial diets, E beta f impaired the development and survival of SSB larvae. High-throughput amplicon sequencing revealed that SSB fed on E beta f were decreased in beneficial gut microbes, compared to those feeding on the corresponding control feed. In vitro feeding of E beta f suggested that this antimicrobial sesquiterpene directly inhibited the growth of SSB gut microbes. The present study suggested that the E beta f-induced decrease of relative abundance of gut microbes potentially impairs larval development and survival in SSB.

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