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Gewählte Publikation:

Fackler, K; Stevanic, JS; Ters, T; Hinterstoisser, B; Schwanninger, M; Salmen, L.
(2011): FT-IR imaging microscopy to localise and characterise simultaneous and selective white-rot decay within spruce wood cells
HOLZFORSCHUNG. 2011; 65(3): 411-420. FullText FullText_BOKU

Abstract:
Spruce wood that had been degraded by white-rot fungi (Trametes versicolor or Ceriporiopsis subvermispora) and suffered mass losses up to 17% was investigated by transmission Fourier transform infrared (FT-IR) imaging microscopy. A significant marker during incipient simultaneous white-rot (T. versicolor) was the cleavage of glycosidic bonds of polysaccharides that preceded their metabolisation. Simultaneous white-rot processes were also characterised by a relative decrease of the overall lignin content and a relative accumulation of wood polysaccharides. No early marker was found for selective white-rot (C. subvermispora) that removes mainly lignin by an oxidative process. This feature was detected only in wood samples exhibiting mass losses higher than 12%. Furthermore, it was shown, that simultaneous and selective white-rot processes were unevenly distributed within the wood samples but quite evenly distributed within single tracheids.
Autor/innen der BOKU Wien:
Hinterstoisser Barbara
Schwanninger Manfred
BOKU Gendermonitor:


Find related publications in this database (Keywords)
Ceriporiopsis subvermispora
FT-IR imaging microscopy
multivariate image analysis
Trametes versicolor
white-rot
wood degradation


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