Fungal associates of the tree-killing bark beetle, Ips typographus, vary in virulence, ability to degrade conifer phenolics and influence bark beetle tunning behavior

Zhao, Tao, 1969- (author): Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Department of Forest Mycology and Plant Pathology,Swedish University of Agricultural Sciences, Sweden,Ecological Chemistry

Kandasamy, Dineshkumar (author): Max Planck Institute for Chemical Ecology, Jena, Germany

Krokene, Paal (author): Norwegian Institute of Bioeconomy Research, Ås, Norway

Chen, Jingyuan (author): Max Planck Institute for Chemical Ecology, Jena, Germany

Gershenzon, Jonathan (author): Max Planck Institute for Chemical Ecology, Jena, Germany

Hammerbacher, Almuth (author): Department of Zoology and Entomology, Forestry and Agricultural Biotechnology Institute, University of Pretoria, Pretoria, South Africa

(creator_code:org_t)

Amsteradam : Elsevier, 2019
2019
English.
In: Fungal ecology. - Amsteradam : Elsevier. - 1754-5048 .- 1878-0083. ; 38, s. 71-79

Related links:: https://urn.kb.se/re...; show more...; https://doi.org/10.1...; https://res.slu.se/i...; https://urn.kb.se/re...; show less...

Abstract Subject headings

The bark beetle Ips typographus carries numerous fungi that could be assisting the beetle in colonizing live Norway spruce (Picea abies) trees. Phenolic defenses in spruce phloem are degraded by the beetle's major tree-killing fungus Endoconidiophora polonica, but it is unknown if other beetle associates can also catabolize these compounds. We compared the ability of five fungi commonly associated with I. typographus to degrade phenolic compounds in Norway spruce phloem. Grosmannia penicillata and Grosmannia europhioides were able to degrade stilbenes and flavonoids faster than E. polonica and grow on minimal growth medium with spruce bark constituents as the only nutrients. Furthermore, beetles avoided medium amended with phenolics but marginally preferred medium colonized by fungi. Taken together our results show that different bark beetle-associated fungi have complementary roles in degrading host metabolites and thus might improve this insect's persistence in well defended host tissues.

By the author/editor: Zhao, Tao, 1969-; Kandasamy, Dines ...; Krokene, Paal; Chen, Jingyuan; Gershenzon, Jona ...; Hammerbacher, Al ...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Biological Scien ...; and Microbiology

By the university: Örebro University; Swedish University of Agricultural Sciences; Linnaeus University

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