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Arch Insect Biochem Physiol

Title:		Relationship between volatile compounds of Picea likiangensis var. linzhiensis cone and host selection of Dioryctria abietella
Author(s):		Tang X; Gao T; Lu J; Hong D; Tong X; Ren Y;
Address:		"Plant Sciences College, Tibet Agriculture & Animal Husbandry University, Nyingchi, Tibet, China. Key Laboratory of Forest Ecology in Tibet Plateau, Tibet Agriculture & Animal Husbandry University, Ministry of Education, Nyingchi, Tibet, China. Laboratory of Resource and Applied Insect in the Tibet Plateau, Nyingchi, Tibet, China. Research Institute of Tibet Plateau Ecology, Tibet Agriculture & Animal Husbandry University, Nyingchi, Tibet, China"
Journal Title:		Arch Insect Biochem Physiol
Year:		2020
Volume:		20200907
Issue:		3
Page Number:		e21733 -
DOI:		10.1002/arch.21733
ISSN/ISBN:		1520-6327 (Electronic) 0739-4462 (Linking)
Abstract:		"This study aimed to determine the relationship between volatile compounds of Picea likiangensis var. linzhiensis cone and host selection of Dioryctria abietella. During the infestation of P. likiangensis var. linzhiensis by D. abietella, their cones and branches emitted volatile compounds, which were extracted using CH(2) Cl(2) extraction and XAD(2) adsorption methods, and were analyzed using gas chromatography-mass spectrometry. Before and after overwintering, D. abietella larva preferred annually infested cones and their extracts, and adult D. abietella preferred to lay eggs on annually infested cones and healthy cones of the year, and the oviposition rate of adult D. abietella was 72% on branches with healthy cones of the year, and no egg was laid on branches with annually healthy cones or branches without cones. The volatile compounds after infestation, alpha- and beta-pinene, were significantly higher in cones than those in other tissues; however, myrcene in cones was significantly lower than those in other tissues. The annually infested cones produced beta-caryophyllene and (1S)-(-)-beta-pinene, while the annually healthy cones and branches produced myrcene and 3-carene. The annually infested cones and their extracts attracted D. abietella larvae, while that of healthy cones and annually infested cones attracted the adults, indicating that the terpene compounds: alpha-pinene, beta-pinene, (1S)-(-)-beta-pinene, limonene, and beta-caryophyllene are attractive to D. abietella, and the terpene compounds-myrcene and 3-carene-from the branch tissues may be repulsive to D. abietella"
Keywords:		"Animals Larva/physiology Moths/growth & development/*physiology Oviposition/physiology Picea/*chemistry/parasitology Plant Components, Aerial/chemistry Volatile Organic Compounds/*chemistry Dioryctria abietella Picea likiangensis var.linzhiensis host sel;"
Notes:		"MedlineTang, Xiaoqin Gao, Tan Lu, Jie Hong, Dawei Tong, Xianming Ren, Yihua eng 31460200/Natural Science Foundation of China/ XZA-JYBSYS-2019-07/Key Laboratory of Forest Ecology in Tibet Plateau (Tibet Agriculture & Animal Husbandry University), Ministry of Education, China/ 2020/09/09 Arch Insect Biochem Physiol. 2020 Nov; 105(3):e21733. doi: 10.1002/arch.21733. Epub 2020 Sep 7"