---

Comparison of the volatiles composition between healthy and buprestid infected Juglans regia (Juglandaceae)

作者 Cui, Yaqin; Kong, Shuqing; Liu, Xinhai; Liu, Suicun

期刊 REVISTA COLOMBIANA DE ENTOMOLOGIA , JAN-JUN 2020,1:46

DOI 10.25100/socolen.v46i1.8649

摘要 Meliboeus ohbayashii primoriensis (Coleoptera: Buprestidae) is an important pest of the walnut tree Juglans regia (Juglandaceae), but the volatiles mediating this plant- herbivore interaction are unknown. In this study, volatiles emitted by healthy J. regia and by plants infested with M. ohbayashii primoriensis (Coleoptera: Buprestidae) were obtained by a dynamic headspace method and analyzed by gas chromatography-mass spectrometry. We identified 26 major compounds and compared the volatile composition of healthy and buprestid-infected J. regia. Green leaf volatiles were detected in all damaged plants, including the monoterpenoids beta-phellandrene and (E)-beta-ocimene, the sesquiterpenoids (-)-beta-bourbonene, beta-ylangene, and (E,E)-alpha-farnesene, the alcohols linalool, myrtenol, and (E)-(-)-pinocarveol, the ketones (E)-pinocamphone and (Z)-pinocamphone, and the ester methyl salicylate. The major volatiles detected in healthy plants were beta-pinene (36.26 %), alpha-pinene (23.81 %), D-limonene (12.03 %), sabinene (8.63 %), and beta-myrcene (4.35 %). The main volatiles from M. ohbayashii primoriensis larva-infested plants were beta-pinene (37.82 %), alpha-pinene (20.36 %), D-limonene (14.71 %), germacrene D (5.24 %), sabinene (4.52 %), and beta-phellandrene (3.80 %). These results enrich our understanding of volatiles of healthy plants and plants infested with M. ohbayashii primoriensis. Furthermore, they provide a theoretical basis and scientific foundation for integrated pest management and for effective ecologically sustainable pest control strategies.

涉及物种 胡桃 Juglans regia