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Insects

Title:		Chinese Cabbage Changes Its Release of Volatiles to Defend against Spodoptera litura
Author(s):		Du YW; Shi XB; Zhao LC; Yuan GG; Zhao WW; Huang GH; Chen G;
Address:		"Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, Hunan Agricultural University, Changsha 410128, China. College of Plant Protection, Hunan Agricultural University, Changsha 410128, China. Hunan Plant Protection Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China. Plant Protection and Quarantine Institution, Shimen County Agriculture and Rural Bureau, Changde 415399, China"
Journal Title:		Insects
Year:		2022
Volume:		20220110
Issue:		1
Page Number:		-
DOI:		10.3390/insects13010073
ISSN/ISBN:		2075-4450 (Print) 2075-4450 (Electronic) 2075-4450 (Linking)
Abstract:		"Plants respond to herbivorous insect attacks by releasing volatiles that directly harm the herbivore or that indirectly harm the herbivore by attracting its natural enemies. Although the larvae of Spodoptera litura (the tobacco cutworm) are known to induce the release of host plant volatiles, the effects of such volatiles on host location by S. litura and by the parasitoid Microplitis similis, a natural enemy of S. litura larvae, are poorly understood. Here, we found that both the regurgitate of S. litura larvae and S. litura-infested cabbage leaves attracted M. similis. S. litura had a reduced preference for cabbage plants that had been infested with S. litura for 24 or 48 h. M. similis selection of plants was positively correlated with the release of limonene; linalool and hexadecane, and was negatively correlated with the release of (E)-2-hexenal and 1-Butene, 4-isothiocyanato. S. litura selection of plants was positively correlated with the release of (E)-2-hexenal, 1-Butene, 4-isothiocyanato, and decanal, and was negatively correlated with the release of limonene, nonanal, hexadecane, heptadecane, and octadecane. Our results indicate that host plant volatiles can regulate the behavior of S. litura and M. similis"
Keywords:		Chinese cabbage Microplitis similis Spodoptera litura plant-defense responses;
Notes:		"PubMed-not-MEDLINEDu, Yuan-Wen Shi, Xiao-Bin Zhao, Lin-Chao Yuan, Ge-Ge Zhao, Wei-Wei Huang, Guo-Hua Chen, Gong eng Switzerland 2022/01/22 Insects. 2022 Jan 10; 13(1):73. doi: 10.3390/insects13010073"