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Issue:ISSN 2095-1353
           CN 11-6020/Q
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Your Position :Home->Past Journals Catalog->2017年54 No.4

EAG and olfactory behavioral responses of Scythropus yasumatsui to seven volatiles from the Zizyphus jujube
Author of the article:YAN Xiong-Fei1, 2** LIU Yong-Hua1, 2 LI Gang1, 2 QIANG Da-Hong1 XU Yu-Ping1
Author's Workplace:1. College of Life and Science, Yulin University, Yulin 719000, China; 2. Shaanxi Key Laboratory of Ecological Restoration in Shanbei Mining Area, Yulin University, Yulin 719000, China
Key Words:Scythropus yasunatsui, Zizyphus jujube, volatiles, EAG, olfactory response
Abstract:

[Objectives]  Scythropus yasumatsui Kono et Morimoto is one of the most serious pests of the Chinese jujube (Zizyphus jujube) and have, in recent years, caused considerable economic and ecological damage to Chinese jujubes in northern Shaanxi province. The aim of this study is to clarify the role of Chinese jujube volatiles in the S. yasumatsui host orientation process, and provide a theoretical basis for the further development of effective botanical attractants for S. yasumatsui. [Methods]  The olfactory and behavioral responses of S. yasumatsui to seven Chinese jujube volatiles were tested using an electroantennogram (EAG) and Y-tube olfactometer, respectively. [Results]  The EAG test results show that a certain concentration of seven volatiles induced clear EAG responses in adult female and male S. yasumatsui. The highest EAG responses occurred at volatile concentrations of 50 μg/μL. The EAG responses of male and female adults to ocimene (2.87 and 2.53, respectively) were the highest. Olfactory behavioral response tests show that both adult males and females were attracted to ocimene and α-farnesene, these volatile having response rates of 70.8% and 70.4%, respectively, whereas trans-2-hexenol was attractive to females only. [Conclusion]  Ocimene and α-farnesene are attractive to both female and male S. yasumatsui, but trans-2-hexenol is only attractive to females.

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