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Effect of wood modification on gene expression during incipient Postia placenta decay
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).ORCID iD: 0000-0002-6208-8314
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Hållbar Samhällsbyggnad.ORCID iD: 0000-0003-2902-2257
Technische Univerität München, Germany.
2014 (English)In: International Biodeterioration & Biodegradation, ISSN 0964-8305, E-ISSN 1879-0208, Vol. 86, no B, p. 86-91Article in journal (Refereed) Published
Abstract [en]

The mode of action of nontoxic wood modifications and the fungal response to modified wood are not fully elucidated. The aim of this study was to investigate the reaction of Postia placenta in terms of gene expression of selected genes upon the encounter of acetylated, DMDHEU-treated and thermally modified wood. Quantitative PCR (qPCR) showed that the investigated P.placentagenes involved in oxidative degradation were expressed at higher levels in modified wood than in untreated wood, while expression levels in modified wood for the investigated genes involved in enzymatic degradation were slightly lower than those in untreated wood. The results indicate that the response of P.placenta upon the encounter of modified wood is to up-regulate the expressionof the oxidative degradation machinery. In addition, our results support the theory that the decay resistance of the herein studied modified woods is due to inhibition of fungal molecules, needed for oxidative degradation of wood polymers, to penetrate the wood cell wall.

Place, publisher, year, edition, pages
2014. Vol. 86, no B, p. 86-91
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Natural Sciences
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URN: urn:nbn:se:ri:diva-6605DOI: 10.1016/j.ibiod.2013.09.002Scopus ID: 2-s2.0-84888063324Local ID: 15250OAI: oai:DiVA.org:ri-6605DiVA, id: diva2:964444
Available from: 2016-09-08 Created: 2016-09-08 Last updated: 2019-08-09Bibliographically approved

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Ringman, RebeckaPilgård, Annica

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