INSPIRING FUTURES

Experimental method to quantify progressive stages of decay of wood by basidiomycete fungi.

Curling, Simon (2002) Experimental method to quantify progressive stages of decay of wood by basidiomycete fungi. International Biodeterioration & Biodegradation, 49 (1). pp. 13-19. ISSN 0964-8305

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Abstract/Description

A biological exposure method was developed that allows wood samples to be progressively removed for monitoring colonization and decay by basidiomycete fungi. Monitoring involves strength tests, determination of weight loss, and chemical analysis. To optimize the procedure, several variations of the method were tested using two species of brown-rot fungi (Gloeophyllum trabeum and Oligoporus placentus (Postia placenta)) and one white-rot species (Trametes versicolor) against southern pine sapwood. The variations involved type of culture medium and exposure method. All variations enabled substantial and rapid decay. Specimens exposed to brown-rot fungi lost 80-100% strength and 25-40% weight after 12 weeks; the white-rot fungus was less effective, but nevertheless caused 20-40% loss in strength. For both brown- and white-rot fungi, strength loss exceeded weight loss. For brown-rot fungi, there was a direct relationship between strength loss and weight loss, suggesting a quantitative relationship between strength loss and chemical composition (hemicellulose sugars) during incipient decay of southern pine by these fungi.

Item Type: Article
Print ISSN: 0964-8305
Electronic ISSN: 1879-0208
Uncontrolled Keywords: Gloeophyllum trabeum; Oligoporus placentus; Trametes versicolor; Brown-rot fungus; white-rot fungus; biological exposure; basidiomycete fungi; strength; weight-loss; chemical analysis; southern pine sapwood;
University Divisions/Research Centres: Faculty of Engineering, Computing and Creative Industries > School of Engineering and the Built Environment
Dewey Decimal Subjects: 500 Science > 570 Life sciences; biology > 572 Biochemistry
500 Science > 570 Life sciences; biology > 579 Microorganisms, fungi & algae
Library of Congress Subjects: Q Science > QD Chemistry
Q Science > QH Natural history
Item ID: 1984
Depositing User: RAE Import
Date Deposited: 09 Jun 2008 11:50
Last Modified: 17 Jun 2013 16:26
URI: http://researchrepository.napier.ac.uk/id/eprint/1984

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