Norway spruce wood is an important building material for the forest and wood industry. To improve wood permeability and uptake of wood modification substances Physisporinus vitreus is employed as a bioincising agent. In this study wood specimens were incubated with P. vitreus to assess hyphal colonisation and structural alterations of Norway spruce wood. After different incubation periods, semi-thin sections were prepared and analysed with light-, confocal laser scanning- and Synchrotron X-ray tomographic microscopy. Each method revealed valuable information on hyphal growth in wood and enhances knowledge about underlying processes of fungus – wood interactions.

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