Heat wave event facilitates defensive responses in invasive C3 plant Ambrosia artemisiifolia L. under elevated CO2 concentration to the detriment of Ophraella communa
文献类型： 外文期刊
作者： Tian, Zhenya 1 ; Ma, Chao 1 ; Zhao, Chenchen 1 ; Zhang, Yan 1 ; Gao, Xuyuan 1 ; Tian, Zhenqi 1 ; Chen, Hongsong 1 ; Guo, Jianying 1 ; Zhou, Zhongshi 1 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing, Peoples R China
2.Chinese Acad Agr Sci, Natl Nanfan Res Inst, Sanya, Peoples R China
3.Henan Agr Univ, Coll Plant Protect, Zhengzhou, Peoples R China
4.Guangxi Acad Agr Sci, Inst Plant Protect, Guangxi Key Lab Biol Crop Dis & Insect Pests, Nanning, Peoples R China
关键词： common ragweed; invasive plant; biological invasions; climate change; secondary metabolite; herbivore; Ophraella communa
期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：6.627； 五年影响因子：7.255 ）
ISSN： 1664-462X
年卷期： 2022 年 13 卷
页码：
收录情况： SCI
摘要： To predict and mitigate the effects of climate change on communities and ecosystems, the joint effects of extreme climatic events on species interactions need to be understood. Using the common ragweed (Ambrosia artemisiifolia L.)-leaf beetle (Ophraella communa) system, we investigated the effects of heat wave and elevated CO2 on common ragweed growth, secondary metabolism, and the consequent impacts on the beetle. The results showed that elevated CO2 and heat wave facilitated A. artemisiifolia growth; further, A. artemisiifolia accumulated large amounts of defensive secondary metabolites. Being fed on A. artemisiifolia grown under elevated CO2 and heat wave conditions resulted in the poor performance of O. communa (high mortality, long development period, and low reproduction). Overall, under elevated CO2, heat wave improved the defensive ability of A. artemisiifolia against herbivores. On the other hand, enhanced adaptability to climatic changes may aggravate invasive plant distribution, posing a challenge to the control of invasive plants in the future. Key message Being fed on A. artemisiifolia grown under elevated CO2 and heat wave conditions resulted in the poor performance of O. communa (high mortality, long development period, and low reproduction). Elevated CO2 and heat waves resulted in the accumulation of secondary metabolites in A. artemisiifolia. After feeding on the secondary metabolites accumulated by A. artemisiifolia, the mortality of O. communa increased.
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