Skip to page content
USDA Forest Service
  
Treesearch

Research & Development Treesearch

 
Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Northern
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help
 

Science.gov - We Participate


USA.gov  Government Made Easy


Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.
20090-6090

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (409 KB)

Title: Enzymatic oxalic acid regulation correlated with wood degradation in four brown-rot fungi

Author: Hastrup, Anne Christine Steenkjær; Green III, Frederick; Lebow, Patricia K.; Jensen, Bo;

Date: 2012

Source: International Biodeterioration & Biodegradation , Volume 75, 2012; pp. 109-114.

Publication Series: Scientific Journal (JRNL)

Description: Oxalic acid is a key component in the initiation of brown-rot decay and it has been suggested that it plays multiple roles during the degradation process. Oxalic acid is accumulated to varying degrees among brown-rot fungi; however, details on active regulation are scarce. The accumulation of oxalic acid was measured in this study from wood degraded by the four brown-rot fungi — Gloeophyllum trabeum, Meruliporia incrassata, Coniophora puteana, and Serpula lacrymans — and found to vary significantly. The amount of oxalic acid present was shown to correlate with the mass loss during wood degradation. However, it did not appear to be a direct or causal relationship as G. trabeum produced significantly lower levels of oxalic acid than the other three fungi but generated comparable weight loss. Oxalic acid decarboxylating activity was detected from wood extractions of all four fungi with extractions from G. trabeum-inoculated wood showing the highest activity. Formic acid was measured in extractions from decayed wood by the four brown-rot fungi, supporting the presence of the fungal produced oxalic-acid-degrading enzyme oxalate decarboxylase (EC 4.1.1.2). Thus this study indicates that the brown-rot species tested, and in particular G. trabeum, are capable of regulating oxalic acid during wood decay by decarboxylation.

Keywords: Oxalate decarboxylase, Wood-decay fungi, Basidiomycetes, Oxalic acid, Wood degradation, Calcium oxalate crystals, SEM

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

XML: View XML

Citation:


Hastrup, Anne Christine Steenkjær; Green III, Frederick; Lebow, Patricia K.; Jensen, Bo. 2012. Enzymatic oxalic acid regulation correlated with wood degradation in four brown-rot fungi. International Biodeterioration & Biodegradation 75: 109-114.

 


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.