Toxicity of Pine Monoterpenes to Mountain Pine Beetle

Abstract The mountain pine beetle (Dendroctonus ponderosae; MPB) is an eruptive bark beetle species affecting pine forests of western North America. MPB are exposed to volatile monoterpenes, which are important host defense chemicals. We assessed the toxicity of the ten most abundant monoterpenes of...

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Autores principales:	Christine C. Chiu, Christopher I. Keeling, Joerg Bohlmann
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/35452f42679b4436a6dac519ca186c2e
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spelling	oai:doaj.org-article:35452f42679b4436a6dac519ca186c2e2021-12-02T15:05:42ZToxicity of Pine Monoterpenes to Mountain Pine Beetle10.1038/s41598-017-08983-y2045-2322https://doaj.org/article/35452f42679b4436a6dac519ca186c2e2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08983-yhttps://doaj.org/toc/2045-2322Abstract The mountain pine beetle (Dendroctonus ponderosae; MPB) is an eruptive bark beetle species affecting pine forests of western North America. MPB are exposed to volatile monoterpenes, which are important host defense chemicals. We assessed the toxicity of the ten most abundant monoterpenes of lodgepole pine (Pinus contorta), a major host in the current MPB epidemic, against adult MPB from two locations in British Columbia, Canada. Monoterpenes were tested as individual volatiles and included (−)-β-phellandrene, (+)-3-carene, myrcene, terpinolene, and both enantiomers of α-pinene, β-pinene and limonene. Dose-mortality experiments identified (−)-limonene as the most toxic (LC50: 32 μL/L), and (−)-α-pinene (LC50: 290 μL/L) and terpinolene (LC50: >500 μL/L) as the least toxic. MPB body weight had a significant positive effect on the ability to survive most monoterpene volatiles, while sex did not have a significant effect with most monoterpenes. This study helps to quantitatively define the effects of individual monoterpenes towards MPB mortality, which is critical when assessing the variable monoterpene chemical defense profiles of its host species.Christine C. ChiuChristopher I. KeelingJoerg BohlmannNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Christine C. Chiu Christopher I. Keeling Joerg Bohlmann Toxicity of Pine Monoterpenes to Mountain Pine Beetle
description	Abstract The mountain pine beetle (Dendroctonus ponderosae; MPB) is an eruptive bark beetle species affecting pine forests of western North America. MPB are exposed to volatile monoterpenes, which are important host defense chemicals. We assessed the toxicity of the ten most abundant monoterpenes of lodgepole pine (Pinus contorta), a major host in the current MPB epidemic, against adult MPB from two locations in British Columbia, Canada. Monoterpenes were tested as individual volatiles and included (−)-β-phellandrene, (+)-3-carene, myrcene, terpinolene, and both enantiomers of α-pinene, β-pinene and limonene. Dose-mortality experiments identified (−)-limonene as the most toxic (LC50: 32 μL/L), and (−)-α-pinene (LC50: 290 μL/L) and terpinolene (LC50: >500 μL/L) as the least toxic. MPB body weight had a significant positive effect on the ability to survive most monoterpene volatiles, while sex did not have a significant effect with most monoterpenes. This study helps to quantitatively define the effects of individual monoterpenes towards MPB mortality, which is critical when assessing the variable monoterpene chemical defense profiles of its host species.
format	article
author	Christine C. Chiu Christopher I. Keeling Joerg Bohlmann
author_facet	Christine C. Chiu Christopher I. Keeling Joerg Bohlmann
author_sort	Christine C. Chiu
title	Toxicity of Pine Monoterpenes to Mountain Pine Beetle
title_short	Toxicity of Pine Monoterpenes to Mountain Pine Beetle
title_full	Toxicity of Pine Monoterpenes to Mountain Pine Beetle
title_fullStr	Toxicity of Pine Monoterpenes to Mountain Pine Beetle
title_full_unstemmed	Toxicity of Pine Monoterpenes to Mountain Pine Beetle
title_sort	toxicity of pine monoterpenes to mountain pine beetle
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/35452f42679b4436a6dac519ca186c2e
work_keys_str_mv	AT christinecchiu toxicityofpinemonoterpenestomountainpinebeetle AT christopherikeeling toxicityofpinemonoterpenestomountainpinebeetle AT joergbohlmann toxicityofpinemonoterpenestomountainpinebeetle
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Toxicity of Pine Monoterpenes to Mountain Pine Beetle

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