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Pestic Biochem Physiol

Title:		"The extraction and identification of active components of the sex pheromones of Asian citrus psyllid, Diaphorina citri"
Author(s):		Luo H; Tang XA; Deng Y; Deng Z; Liu M;
Address:		"Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education-Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin, Guilin, Guangxi 541006, China; Guangxi Key Laboratory of Rare and Endangered Animal Ecology, Guangxi Normal University, Guilin, Guangxi 541006, China; Institute for Sustainable Development and Innovation, Guangxi Normal University, Guilin, Guangxi 541006, China. Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education-Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin, Guilin, Guangxi 541006, China; Guangxi Key Laboratory of Rare and Endangered Animal Ecology, Guangxi Normal University, Guilin, Guangxi 541006, China; Institute for Sustainable Development and Innovation, Guangxi Normal University, Guilin, Guangxi 541006, China. Electronic address: dyecheng@163.com"
Journal Title:		Pestic Biochem Physiol
Year:		2023
Volume:		20230406
Issue:
Page Number:		105421 -
DOI:		10.1016/j.pestbp.2023.105421
ISSN/ISBN:		1095-9939 (Electronic) 0048-3575 (Linking)
Abstract:		"In this study, we extracted and identified the active components of the Asian citrus psyllid, Diaphorina citri sex pheromones to provide a basis for further development of sex attractants. Under laboratory conditions, mating activity in D. citri started 3 d after emergence, which peaked at 6-7 d, and mating activity had no obvious peak during the observed period 7:00-21:00 h. Additionally, D. citri males were attracted to the emanations from conspecific females, especially to the n-hexane extracts of the pheromone. A total of 17 compounds were identified from the n-hexane extracts of female and male D. citri by gas chromatography-mass spectrometer (GC-MS). Among them, 13 compounds were identified from the female D. citri n-hexane extracts, of which 7 (dichloromethane, acetic acid, toluene, butyl acetate, ethyl carbamoylacetate, alpha-pinene, and 1-nonanal) were not found in the male D. citri n-hexane extracts. In addition, a total of 33 compounds were identified from the solid phase microextraction (SPME) volatiles of the male and female D. citri adults. Among these, 17 compounds were identified from the female D. citri volatiles, of which 6 (cycloheptatriene, 5-methyl-2-phenylindole, 1-dodecanol, cis-11-hexadecena, dodecyl aldehyde, and nerylacetone) were not identified in the volatiles of the D. citri males. It was found that males were significantly attracted to 0.1-10 muL/mL acetic acid and 1-nonanal with the selection rates ranging from 62.04%-70.56% and 62.22%-67.22%, respectively. Therefore, the results of this study suggest that acetic acid and 1-nonanal might be the active compounds of the female D. citri sex pheromones"
Keywords:		"Female Male Animals *Citrus *Sex Attractants/pharmacology Behavior, Animal *Hemiptera Acetic Acid Pheromones Attractant activity Gas chromatography-mass spectrometry (GC-MS) Mating rhythm Solid phase microextraction (SPME) Solvent extraction Y-tube olfact;"
Notes:		"MedlineLuo, Haiyu Tang, Xia' An Deng, Yecheng Deng, Zhiyong Liu, Mingxi eng 2023/04/28 Pestic Biochem Physiol. 2023 May; 192:105421. doi: 10.1016/j.pestbp.2023.105421. Epub 2023 Apr 6"