Abstract
Effect of malt extract(ME) addition on decomposition of lignin and carbohydrate was examined in oak wood (Quercus serrata) inoculated with four fungal isolates (Lentinula edodes, Trametes versicolor, Daedalea dickinsii, Laetioporus sulphureus) under a laboratory condition. ME addition enhanced mass loss of wood by T. versicolor and had minor effects on mass loss of wood by L. edodes, D. dickinsii and L. sulphureus during 24 weeks of decomposition. ME addition enhanced lignin decomposition by T. versicolor, L. edodes and D. dickinsii and enhanced carbohydrate decomposition by T. versicolor, indicating ME was used as a source of energy and nutrients for oak wood decomposition by these fungi. ME addition had minor effects on selective carbohydrate decomposition by L. sulphureus, suggesting the effects of ME was different depending on fungal species.
