Volatiles from cotton aphid (Aphis gossypii) infested plants attract the natural enemy Hippodamia variegata.
Volatiles from cotton aphid (Aphis gossypii) infested plants attract the natural enemy Hippodamia variegata.
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被棉蚜 (Aphis gossypii) 侵染的植物产生的挥发物会吸引天敌花斑马蜂 (Hippodamia variegata)。
DOI：
10.3389/fpls.2023.1326630
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发表时间：
2023
影响因子：
5.6
通讯作者：
中科院分区：
文献类型：
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作者：
The Aphis gossypii is a major threat of cotton worldwide due to its short life cycle and rapid reproduction. Chemical control is the primary method used to manage the cotton aphid, which has significant environmental impacts. Therefore, prioritizing eco-friendly alternatives is essential for managing the cotton aphid. The ladybird, Hippodamia variegata, is a predominant predator of the cotton aphid. Its performance in cotton plantation is directly linked to chemical communication, where volatile compounds emitted from aphid-infested plants play important roles in successful predation. Here, we comprehensively studied the chemical interaction between the pest, natural enemy and host plants by analyzing the volatile profiles of aphid-infested cotton plants using gas chromatography-mass spectrometry (GC-MS). We then utilized the identified volatile compounds in electrophysiological recording (EAG) and behavioral assays. Through behavioral tests, we initially demonstrated the clear preference of both larvae and adults of H. variegata for aphid-infested plants. Subsequently, 13 compounds, namely α-pinene, cis-3-hexenyl acetate, 4-ethyl-1-octyn-3-ol, β-ocimene, dodecane, E-β-farnesene, decanal, methyl salicylate, β-caryophyllene, α-humulene, farnesol, DMNT, and TMTT were identified from aphid-infested plants. All these compounds were electrophysiologically active and induced detectable EAG responses in larvae and adults. Y-tube olfactometer assays indicated that, with few exceptions for larvae, all identified chemicals were attractive to H. variegata, particularly at the highest tested concentration (100 mg/ml). The outcomes of this study establish a practical foundation for developing attractants for H. variegata and open avenues for potential advancements in aphid management strategies by understanding the details of chemical communication at a tritrophic level.
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DOI：
10.1126/science.ade1877
发表时间：
2023-02-17
期刊：
Science (New York, N.Y.)
影响因子：
--
作者：
通讯作者：
--
影响因子：
2.2
作者：
McClure, Micah;Herreid, Judith;Jabbour, Randa
通讯作者：
Jabbour, Randa
节肢动物天然敌人，食草动物和植物之间的旋转性相互作用，考虑在不同尺度水平上的挥发性混合物。
影响因子：
6
作者：
通讯作者：
--
影响因子：
--
作者：
Franzmann, BA
通讯作者：
Franzmann, BA
影响因子：
4.2
作者：
Baker, Brian P.;Green, Thomas A.;Loker, Ali J.
通讯作者：
Loker, Ali J.