Fate of organic solvent-soluble extractives and arabinogalactan during brown rot degradation of siberian larch heartwood

Belt, Tiina; Harju, Anni; Venäläinen, Martti; Kilpeläinen, Petri (2024)
 
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URI
https://doi.org/10.1007/s00107-024-02146-3

Belt, Tiina
Harju, Anni
Venäläinen, Martti
Kilpeläinen, Petri

Julkaisusarja
European journal of wood and wood products

Volyymi
82

Numero
6

Sivut
2203-2208


Springer Nature
2024

How to cite: Belt, T., Harju, A., Venäläinen, M. et al. Fate of organic solvent-soluble extractives and arabinogalactan during brown rot degradation of siberian larch heartwood. Eur. J. Wood Prod. 82, 2203–2208 (2024). https://doi.org/10.1007/s00107-024-02146-3

doi:10.1007/s00107-024-02146-3
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Julkaisun pysyvä osoite on
http://urn.fi/URN:NBN:fi-fe20241219105835
Tiivistelmä
The decay resistance of durable heartwoods is primarily due to heartwood extractives, but some extractives have been found to be degradable by wood decaying fungi. We investigated the degradation of heartwood extractives in Siberian larch by the brown rot fungi Coniophora puteana and Rhodonia placenta and found that neither fungus caused the degradation of flavonoids, the primary organic solvent-soluble extractives in the larch samples. However, both fungi caused the gradual depletion of arabinogalactan, the polysaccharide extractive found in larch heartwood.
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