期刊
RUSSIAN JOURNAL OF PLANT PHYSIOLOGY
卷 65, 期 6, 页码 916-925出版社
PLEIADES PUBLISHING INC
DOI: 10.1134/S1021443718060067
关键词
Populus spp; Trypophloeus klimeschi; volatile compounds; attractants; deterrents
资金
- Natural Science Basic Research Plan in Shaanxi Province of China [2017ZDJC-03]
- National Natural Science Foundation of China [31670658]
- Shelterbelt in the Dunhuang Oil Base of the China National Petroleum Corporation
Trypophloeus klimeschi Eggers was first discovered in Xinjiang Province and had strong selection specificity for Populus alba var. pyramidalis Bunge. There was an outbreak of this beetle in the northwest shelter forest of China, resulting in significant economic losses and loss of ecological benefits. Based on a prior long-term field investigation, T. klimeschi had a different extent of injuries for different ages of P. alba var. pyramidalis and other Populus in the same area were not selected by T. klimeschi. To further explore the specificity volatile compounds, this study involved selecting host and non-host trees to analyse the volatile chemical profile of host and non-host poplars of T. klimeschi. The main volatile compounds of the host poplar P. alba var. pyramidalis for different physiological statuses and those of three other non-host poplars (P. alba L., P. tomentosa Carr., and P. dakuanensis Hsu) were analysed through solid-phase micro extraction (SPME) coupled with thermal desorption and gas chromatography-mass spectrometry (GC-MS). The major compound groups were aldehydes, esters, alcohols, ketones, phenols, terpenes and alkanes. Comparative analysis of the changes in the different physiological stages of P. alba var. pyramidalis and other non-host Populus volatile substances was conducted, and the results showed that 2-hydroxy-benzaldehyde, nonanal, decanal, 2-methyl-butanal, (Z)-3-hexen-1-ol benzoate, methyl benzoate, methyl salicylate, geraniol and salicyl alcohol might act as attractants for T. klimeschi, and 2-hexenal, hexanal, 2-cyclohexen-1-one, caryophyllene, eugenol, benzyl alcohol, and eucalyptol could be deterrents for T. klimeschi. These experiments may lead to the optimisation of a synthetic lure that may be used to detect and monitor T. klimeschi.
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