Slováčková, Barbora, 1993- Permeability of three wood species degraded by Trametes versicolor L. Lloyd / Barbora Slováčková, Oľga Mišíková. -- Obr., tab. -- Lit. - Permeability of wood is an important factor in many technical processes, foremost in treating wood with various chemicals. It depends on the number of pathways in wood and their transmissivity. The more open pores and pathways are, the deeper the chemicals can penetrate wood, and protection will last longer. The focus of this paper is permeability of spruce, beech and sessile oak heartwood intentionally degraded by Trametes versicolor L. Lloyd. Porosity of the degraded wood species increased by more than 10 %. A higher permeability was expected because of the increased porosity, but this could not be confirmed, as the values showed a great variability. Longitudinal permeability of the wood degraded with Trametes versicolor L. Lloyd was similar to permeability of healthy wood. As expected, the sessile oak heartwood was not permeable at all. To support the findings, all wood species were studied under a light microscope. There were visibly thinned cell walls in the degraded spruce wood, missing toruses in bordered pits, and bore holes in tangential walls of tracheids. Permeability in the radial direction of degraded spruce wood was lower compared to permeability in tangential direction. The degraded beech wood also showed signs of degradation – thinned and disrupted cell walls, sometimes even missing cell walls, pronounced pits and bore holes turning into ruptures. There were numerous tyloses visible in the oak heartwood, as well as the presence of hyphae.

In Acta Facultatis Xylologiae Zvolen : vedecký časopis Drevárskej fakulty. -- Zvolen : Technická univerzita vo Zvolene, 2021. -- ISSN 1336-3824. -- Vol. 63, no. 2 (2021), s. 5-15

I. Mišíková, Oľga, 1968-
II. Acta Facultatis Xylologiae Zvolen : vedecký časopis Drevárskej fakulty. -- Vol. 63, no. 2 (2021), s. 5-15

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