ISOLATION OF SPORES FROM CALLUS-LIKE FRUITING BODIES OF PULP-BLEACHING FUNGI SKB-207 AND SKB-1152 AND THE BLEACHING ACTIVITIES OF ISOLATED STRAINS

We tried single spores isolation from the callus-like fruiting bodies of SKB-207 and SKB-1152 which had been isolated from a natural forest for pulp-bleaching. Moreover the bleaching activities of isolated spor ous strains were measured. The following resulted. 1) After both strai ns had been cultured in darkness on potato-dextrose-agar media, the ca llus-like fruiting bodies were formed easily with culture under indoor light and the processing of chilling treatment. 2) The difference bet ween isolated strains was seen in the bleaching activity. Some strains showed less bleaching activity than did the parent strains and others had greater activities. Especially, No. 43 strain from SKB-1152 able to bleach the oxygen-bleached pulp up to 81.2%. We think this spore is olation method is useful because it can be done easily.