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Transcriptomic and metabolomic reprogramming in cotton after Apolygus lucorum feeding implicated in enhancing recruitment of the parasitoid Peristenus spretus

文献类型： 外文期刊

作者： Huang, Xinzheng 1 ; Kou, Junfeng 2 ; Jing, Weixia 2 ; Han, Xiaoqiang 4 ; Liu, Danfeng 2 ; Ghasemzadeh, Somayyeh 2 ; Su 1 ;

作者机构： 1.China Agr Univ, Coll Plant Protect, Dept Entomol, MOA Key Lab Pest Monitoring & Green Management, Beijing 100193, Peoples R China

2.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China

3.Cangzhou Acad Agr & Forestry Sci, Inst Plant Protect, Cangzhou 061001, Peoples R China

4.Shihezi Univ, Coll Agr, Key Lab Oasis Agr Pest Management & Plant Protect, Shihezi 832003, Peoples R China

5.Yunnan Univ, Lab Ecol & Evolutionary Biol, Kunming 650091, Yunnan, Peoples R China

关键词： Gossypium hirsutum; Herbivore-induced plant volatiles; Induced resistance; Plant– insect interactions; Indirect defense; Methyl salicylate

期刊名称：JOURNAL OF PEST SCIENCE （ 影响因子：4.578； 五年影响因子：4.647 ）

ISSN： 1612-4758

年卷期：

页码：

收录情况： SCI

摘要： Different types of insect feeding can activate distinct plant resistance mechanisms and trigger the generation of specific volatile compounds. Transcriptomic changes and the genomic basis underlying plant defense in response to chewing herbivores or phloem-feeding insects have been relatively well investigated, while better insight into molecular mechanisms underlying the plant defense response, in particular, volatile emissions triggered by sap-feeding insects such as the green plant bug Apolygus lucorum is needed. Here, we monitored transcriptomic and volatile metabolomic changes in cotton over time during A. lucorum infestation. RNA-seq analysis showed that 1614 transcripts were differentially expressed (log(2)|Ratio| >= 1; q <= 0.05) in cotton leaves infested by A. lucorum. All differentially expressed genes (DEGs) in jasmonic acid (JA; 48 genes) and salicylic acid (SA; 5 genes) pathways were upregulated, highlighting a central role of JA in A. lucorum-induced signaling without attenuating the SA pathway. Moreover, all DEGs (30 genes) involved in herbivore-induced volatile biosynthesis were upregulated. Consistently, A. lucorum-induced cotton volatile blends and synthetic methyl salicylate significantly attracted the parasitoid Peristenus spretus. The present data indicated that cotton plants after A. lucorum infestation undergo rapid, extensive transcriptome reprogramming mediated by complex signaling networks in which the JA and SA pathways act synergistically, leading to a specific volatile profile involved in an indirect plant defense.

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