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- Title
Comparative Investigations on Wood Decay and Cellulolytic and Xylanolytic Activity of Some Basidiomycete Fungi.
- Authors
Hegarty, B.; Steinfurth, A.; Liese, W.; Schmidt, O.
- Abstract
To evaluate physiological differences between various wood-decay fungi and especially different strains per species, comparative investigations were performed with 13 brown-rot and 6 white-rot fungi with respect to their wood decay as well as cellulolytic and xylanolytic capacities. Pine wood samples were considerably decayed by the brown-rot fungi with the two Poria placenta strains showing highest and the two Serpula himantioides isolates lowest mass losses. Most white-rot fungi degraded beech wood samples stronger than pine. Schizophyllum commune was inactive on both substrates. Whereas Cellulolytic activity measurement using the clearing of Walseth cellulose gave negative results for some brownrotters, all white-rotters, especially Merulius tremellosus produced cellulase. The decay of Remazol Brilliant Blue stained Avicel in liquid medium proved to be an unsuitable lest method for most Serpula lacrymans strains, one P. placenta isolate and for Coriolus versicolor and M. tremellosus. The new method of quantitative photometrical determination of dye release from stained cellulose in agar provided a suitable cellulase assay for most fungi, although the whiterotters C. versicolor, Heterobasidion annosum and M. tremellosus could metabolise the stain. In shake culture, carboxymethylcellulase was not produced by S. lacrymans, P. placenta, Laetiporus sulphureus or Gloeophyllum abietinum, whereas all fungi were xylanolytic. There was only a slight relation between wood decay and enzymatic capacity and, altogether, a great physiological diversity within the fungi was evident.
- Publication
Holzforschung: International Journal of the Biology, Chemistry, Physics, & Technology of Wood, 1987, Vol 41, Issue 5, p265
- ISSN
0018-3830
- Publication type
Article