期刊
FUNGAL ECOLOGY
卷 39, 期 -, 页码 285-295出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.funeco.2019.01.003
关键词
Fungal chemical ecology; Fungus-insect interactions; Grosmannia; Ophiostoma; Microbial volatile organic compounds; Mountain pine beetle; Pine engraver beetle
资金
- Canada Foundation of Innovation and Natural Science and Engineering Research Council of Canada-Discovery Award
- University of Alberta Research Experience program
Fungal volatile compounds can mediate fungal-insect interactions. Whether fungi can emit insect pheromones and how volatile chemicals change in response to chemicals the fungi naturally encounter is poorly understood. We analyzed volatiles emitted by Grosmannia clavigera (symbiont of the mountain pine beetle) and Ophiostoma ips (symbiont of the pine engraver beetle) growing in liquid media amended with compounds that the fungi naturally encounter: (-)-alpha-pinene, (+)-alpha-pinene, (-)-trans-verbenol, verbenone, or ipsdienol. Nine volatile compounds were identified among the fungal and amendment treatments. Volatiles qualitatively and quantitatively differed between fungal species and among amendment treatments. The bark beetle anti-aggregation pheromone (-)-verbenone was detected from both fungi growing in (-)-trans-verbenol-amended media. G clavigera and O. ips can emit beetle pheromones and other beetle semiochemicals, suggesting that ophiostomatoid fungi could contribute to the chemical ecology of bark beetles. However, such contributions could be modulated by the presence of other environmental chemicals. (C) 2019 Elsevier Ltd and British Mycological Society. All rights reserved.
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