Abstract
To study fungi causing decay of Pinus radiata in New Zealand, basidiomycetes were obtained from P. radiata wood, fruiting bodies on P. radiata and culture collections. Thirty-eight fungi were screened for decay potential using a wood block assay and a cellulase assay to identify those suitable for further study. Twenty isolates caused significant wood weight losses relative to uninoculated controls. Thirteen brown rot fungi produced the greatest weight losses (7.7-27.1%). Cellulolytic activity was exhibited by all fungi but was highest for six white rot fungi (0.18-0.35 µmoles glucose/min/ml). There was no correlation between wood weight loss and cellulolytic activity for the test fungi under these assay conditions.
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