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Detection of iron-chelating and iron-reducing compounds in four brown rot fungi

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Published/Copyright: July 18, 2012
Holzforschung
From the journal Holzforschung Volume 67 Issue 1

Abstract

The presence of iron-chelating and iron-reducing compounds has been evaluated qualitatively and quantitatively in the four brown rot fungi Meruliporia incrassata (M. incrassata), Gloeophyllum trabeum (G. trabeum), Coniophora puteana (C. puteana) and Serpula lacrymans (S. lacrymans). Samples of actively growing mycelium from liquid growth media, decayed wood, and agar plate cultures were in focus. Iron-chelating compounds were found in all four species, with the highest reactivity in G. trabeum and S. lacrymans, and the lowest in M. incrassata. Iron-reducing activity, measured in the liquid medium, was found in all four fungi. However, in wood extractions, S. lacrymans was not effective in this regard, although the agar grown mycelium of this fungus showed the highest iron-reducing capacity of the four. The presence of both catecholate and hydroxamate chelators was detected in all four species. G. trabeum showed the highest concentration overall of extracellular chelators, including both catecholate and hydroxamate derivatives.

Keywords: brown rot fungi; catecholate; hydroxamate; iron chelator; oxalic acid; wood decay
Corresponding author. Department of Biotechnology, Chemistry and Environmental Engineering, Aalborg University, Lautrupvang 15, 2750 Ballerup, Denmark Phone: +45-20235937
Received: 2011-8-2
Accepted: 2012-6-8
Published Online: 2012-07-18
Published in Print: 2013-01-01

©2013 by Walter de Gruyter Berlin Boston

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https://doi.org/10.1515/hf-2011-0152
Keywords for this article
brown rot fungi; catecholate; hydroxamate; iron chelator; oxalic acid; wood decay

Articles in the same Issue

  1. Masthead
  2. Masthead
  3. Original Papers
  4. Assessment of total phenols and extractives of mahogany wood by near infrared spectroscopy (NIRS)
  5. Steam pretreatment for enzymatic hydrolysis of poplar wood: comparison of optimal conditions with and without SO2 impregnation
  6. Silica content of 36 Brazilian tropical wood species
  7. Dissolution and acetylation of ball-milled lignocellulosic biomass in ionic liquids at room temperature: application to nuclear magnetic resonance analysis of cell-wall components
  8. Effects of hydrothermal processing on the cellulosic fraction of Eucalyptus globulus wood
  9. Wood capillarity and deacetylation during eucalyptus alkaline impregnation. Sulphidity effects and comparison between transverse directions
  10. Effects of climatic test parameters on acetic acid emission from beech (Fagus sylvatica L.)
  11. Rational production of veneer by IR-heating of green wood during peeling: Modeling experiments
  12. Measurement of intra-ring wood density by means of imaging VIS/NIR spectroscopy (hyperspectral imaging)
  13. Coarse graining of wood cell arrangement and density dependence of elasticity
  14. Changes in viscoelastic vibrational properties between compression and normal wood: roles of microfibril angle and of lignin
  15. Elastic properties of cellular wood panels with hexagonal and auxetic cores
  16. Alternative experimental method to evaluate moment-carrying capacity of traditional wood-to-wood joint with small scale experiment
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