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Oral secretions from striped stem borer (Chilo suppressalis) induce defenses in rice

文献类型： 外文期刊

作者： Yu, Shan 1 ; Gong, Lei 1 ; Han, Yang-Chun 2 ; Yang, Lei 1 ; Li, Jing 1 ; Hoffmann, Ary A. 3 ; Luo, Guang-Hua 1 ; Yuan, Guo-Rui 4 ; Fang, Ji-Chao 1 ; Ji, Rui 1 ;

作者机构： 1.Jiangsu Acad Agr Sci, Inst Plant Protect, Jiangsu Key Lab Food & Safety, State Key Lab Cultivat Base Minist Sci & Technol, Nanjing 210014, Peoples R China

2.Integrated Tech Serv Ctr Jiangyin Customs, Lab Quarantine Alien Species, Jiangyin, Peoples R China

3.Univ Melbourne, Bio21 Inst, Sch BioSci, Parkville, Vic, Australia

4.Southwest Univ, Coll Plant Protect, Key Lab Entomol & Pest Control Engn, Chongqing, Peoples R China

关键词： rice; Chilo suppressalis; defense response; transcriptome; oral secretion; proteome

期刊名称：PEST MANAGEMENT SCIENCE （ 影响因子：3.8； 五年影响因子：4.3 ）

ISSN： 1526-498X

年卷期： 2024 年

页码：

收录情况： SCI

摘要： BACKGROUND The striped stem borer (SSB, Chilo suppressalis) is one of the most destructive insect pests on rice. As a chewing insect, SSB larval feeding causes a dramatic increase in rice defense responses. However, the effects of oral secretions (OSs) during SSB feeding on rice defense remain largely unexplored. RESULTS In this study, based on transcriptome analysis results, treatment with SSB OSs regulated the expression of genes involved in the plant defense-related pathways of calcium, mitogen-activated protein kinases, reactive oxygen species, jasmonic acid (JA), herbivore-induced plant volatiles (HIPVs), and protease inhibitors. Unsurprisingly, treatment with SSB OSs elicited the accumulation of JA and JA-isoleucine in rice. The defense mechanisms activated by the cascade not only induced the expression of trypsin inhibitors, inhibiting the normal growth of SSB larvae but also induced HIPVs emission, rendering rice attractive to a common larval parasitoid. High-throughput proteome sequencing of SSB OSs led to 534 proteins being identified and 343 proteins with two or more unique peptides being detected. CONCLUSION The study demonstrates that SSB OSs trigger both direct and indirect defense mechanisms in rice, akin to the effects of SSB feeding. It identifies specific proteins in SSB OSs that may influence the interactions between SSB and rice during feeding, providing valuable insights for effectors research. (c) 2024 Society of Chemical Industry.

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