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J Agric Food Chem

Title:		Plant Volatiles Mediate Host Selection of Sitodiplosis mosellana (Diptera: Cecidomyiidae) among Wheat Varieties
Author(s):		Huang Q; Han X; Zhang G; Zhu-Salzman K; Cheng W;
Address:		"Key Laboratory of Plant Protection Resources & Pest Management of the Ministry of Education, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China. Department of Entomology, Texas A&M University, College Station, Texas 77843, United States"
Journal Title:		J Agric Food Chem
Year:		2022
Volume:		20220822
Issue:		34
Page Number:		10466 - 10475
DOI:		10.1021/acs.jafc.2c03244
ISSN/ISBN:		1520-5118 (Electronic) 0021-8561 (Linking)
Abstract:		"Sitodiplosis mosellana is a major wheat pest that oviposits on spikes, and resistant wheat varieties have been released. However, wheat spike volatiles mediating S. mosellana host selection or resistance are largely unknown. In this study, we found that the highly susceptible wheat varieties Xinong 822, Xinong 88, and Xiaoyan 22 were preferred for S. mosellana oviposition, and their spike volatiles were more attractive to females compared to the resistant varieties Kenong 1006, Shanmai 139, and Jinmai 47. Importantly, we found five odor components evoking obvious concentration-dependent electroantennogram (EAG) and behavioral response. Notably, 3-hexanol, cis-3-hexenylacetate, and hexyl acetate strongly attracted females, whereas ocimene, a dominant component of three resistant varieties, and alpha-farnesene, absent in Xinong 88, repelled females. Significant attraction was also observed in a synthetic blend mimicking Xinong 822 volatiles. These results suggest that these wheat volatiles are involved in host selection of S. mosellana and provide a basis for development of semichemical-based pest management"
Keywords:		Animals *Diptera Female Oviposition Triticum *Volatile Organic Compounds Eag Sitodiplosis mosellana behavioral assays host selection volatiles wheat spike;
Notes:		"MedlineHuang, Qitong Han, Xianqi Zhang, Guojun Zhu-Salzman, Keyan Cheng, Weining eng 2022/08/23 J Agric Food Chem. 2022 Aug 31; 70(34):10466-10475. doi: 10.1021/acs.jafc.2c03244. Epub 2022 Aug 22"