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Effects of water stress on plant volatile emission and insect oviposition preference in an agroecosystem

文献类型： 外文期刊

作者： Sun, Yan 1 ; Zhu, Xuewei 1 ; Sui, Li 3 ; Zhu, Ziqiu 1 ; Ren, Bingzhong 1 ; Pan, Duofeng 4 ; Wan, Ho Yi 5 ; Zhu, Hui 1 ;

作者机构： 1.Northeast Normal Univ, Sch Life Sci, Jilin Songnen Grassland Ecosyst Natl Observat & Re, Key Lab Vegetat Ecol,Minist Educ, Changchun 130024, Peoples R China

2.Northeast Normal Univ, Jilin Prov Key Lab Anim Resource Conservat & Utili, Changchun 130024, Jilin, Peoples R China

3.Jilin Acad Agr Sci, Inst Plant Protect, Changchun 136100, Jilin, Peoples R China

4.Heilongjiang Acad Agr Sci, Inst Forage & Grassland Sci, Harbin 150086, Heilongjiang, Peoples R China

5.Calif State Polytech Univ Humboldt, Dept Wildlife, Arcata, CA USA

关键词： drought; maize; Ostrinia furnacalis; oviposition selection; volatile organic compounds

期刊名称：AGRICULTURAL AND FOREST ENTOMOLOGY （ 影响因子：1.6； 五年影响因子：1.8 ）

ISSN： 1461-9555

年卷期： 2023 年 25 卷 3 期

页码：

收录情况： SCI

摘要： 1. Drought has become more common and severe in many parts of the world due to climate change. The effect of water stress on insect oviposition preference that is key determinant for their fitness has received less attention. 2. Here, we examined how water stress may affect oviposition selection of Ostrinia furnacalis for maize plants in the greenhouse, and tested difference in volatile compounds emitted from treated maize, and electronantennogram and bioassay responses of O. furnacalis to the volatile profiles in maize plants. 3. Ostrinia furnacalis were more prone to lay eggs on the well-watered maize. Most plant volatile compounds differed significantly among the three water treatments, including increased emissions of beta-caryophyllene, (E)-2-hexenal, and linalool, and decreased emission of (Z)-3-hexen-1-ol when subjected to increasing intensity of drought. 4. Varied volatile profiles of maize may drive oviposition decision of O. furnacalis, because O. furnacalis showed a clear oviposition preference for (Z)-3-hexen-1-ol, while not for beta-caryophyllene, (E)-2-hexenal, and linalool, at the concentration of 1000 ppm. 5. This study advances understanding of drought effects on plant-insect interactions through volatile profiles. Our finding calls for attention to oviposition selection for insect pest management in agricultural settings, especially in regions under changing precipitation patterns.

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