Reduction of Plant Suitability for Corn Leaf Aphid (Hemiptera: Aphididae) Under Elevated Carbon Dioxide Condition

文献类型： 外文期刊

第一作者： Chen, Yu

作者： Chen, Yu;Wang, Zhenying;He, KangLai;Chen, Yu;Serteyn, Laurent;Francis, Frederic

作者机构：

关键词： climate change; carbon dioxide; corn leaf aphid; feeding behavior; electrical penetration graph (EPG)

期刊名称：ENVIRONMENTAL ENTOMOLOGY （ 影响因子：2.377； 五年影响因子：2.298 ）

ISSN： 0046-225X

年卷期： 2019 年 48 卷 4 期

页码：

收录情况： SCI

摘要： In the current context of global climate change, atmospheric carbon dioxide (CO2) concentrations are continuously rising with potential influence on plant-herbivore interactions.The effect of elevated CO2 (eCO(2)) on feeding behavior of corn leaf aphid, Rhopalosiphum maidis (Fitch) in barley seedlings Hordeum vulgare L. was tracked using electrical penetration graph (EPG). The nutrient content of host plant and the developmental indexes of aphids under eCO(2) and ambient CO2 (aCO(2)) conditions were also investigated. Barley seedlings under eCO(2) concentration had lower contents of crude protein and amino acids. EPG analysis showed the plants cultivated under eCO(2) influenced the aphid feeding behavior, by prolonging the total pre-probation time of the aphids (wandering and locating the feeding site) and the ingestion of passive phloem sap. Moreover, fresh body weight, fecundity and intrinsic population growth rate of R. maidis was significantly decreased in eCO(2) in contrast to aCO(2) condition. Our findings suggested that changes in plant nutrition caused by eCO(2), mediated via the herbivore host could affect insect feeding behavior and population dynamics.

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