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Issue:ISSN 2095-1353
           CN 11-6020/Q
Director:Chinese Academy of Sciences
Sponsored by:Chinese Society of Entomological;institute of zoology, chinese academy of sciences;
Address:Chaoyang District No. 1 Beichen West Road, No. 5 hospital,Beijing City,100101, China
Your Position :Home->Past Journals Catalog->2020年57 No.1

Electrophysiological and behavioral responses of Myzus persicae to alarm pheromone and tobacco plant volatiles
Author of the article:WEI Bo;CHEN Bao-Yuan;ZHANG Xiao-Jiao;WEI Cheng-Mei;JING Ying;LI Cheng-Yun;DONG Wen-Xia
Author's Workplace:National Key Laboratory for Conservation and Utilization of Biological Resources in Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China; Department of Landscape and Horticulture, Yangzhou Polytechnic College, Yangzhou 225000, China
Key Words:Myzus persicae; tobacco plant volatiles; alarm pheromones; EAG; behavioral response
[Objectives]  To provide information to inform the choice of pheromones and volatile compounds for the environmentally-friendly control of crop damage by this species, the effects of tobacco volatiles and an alarm pheromone on the behavior of Myzus persicae were measured. [Methods]  Electrophysiological responses of winged and wingless M. persicae to 1, 10 and 100 ng concentrations of the aphid alarm pheromone ((E)-β-farnesene) and four volatile tobacco plant compounds (6-methyl-5-hepten-2-one, butyl acetate, (E)-β-ocimene and nonanal) were recorded by EAG and the behavioral responses of individual aphids to these compounds were recorded in a Y-tube olfactometer. [Results]  Aphid alarm pheromone and the four tobacco volatile compounds tested all elicited EAG responses in both winged and wingless aphids. Winged aphids were more sensitive to the alarm pheromone than wingless ones, whereas wingless aphids were more sensitive to butyl acetate and (E)-β-ocimene. Both 10 ng and 100 ng concentrations of the alarm pheromone repelled both winged and wingless aphids, but the 1ng concentration only repelled wingless aphids. One hundred nanogram concentrations of 6-methyl-5-hepten-2-one, butyl acetate and (E)-β-ocimene were significantly attractive to both winged and wingless aphids. A concentration of 10 ng butyl acetate attracted both winged and wingless aphids, but the same concentration of 6-methyl-5-hepten-2-one only attracted wingless ones.[Conclusion]  The alarm pheromone has a stronger repellent effect on wingless aphids than winged aphids, and 6-methyl-5-hepten-2-one, butyl acetate and (E)-β-ocimene are attractive to both winged and wingless aphids.
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