9 pages, 3 figures, 18 references.-- Simposium celebrado del 27-30, agosto, 1985, en Budapest, Hungría.The excretion of extracellular enzymes and the degradation
of indulin (pine kraft lignin) by the fungus Coriolopsis gallica
were studied. By using a lignin-impregnated glass fibre disc
which simulated natural conditions, the fungus excreted phenol
oxidases during the log phase of growth and reached two activity
maxima in the autolytic phase. However, in absence of indulin
the fungus had a different behaviour with respect to phenol oxidases.
It was concluded that in the extracellular enzymatic
system at least two enzymes, laccase and peroxidase, were involved
in the indulin degradation. Evidence of structural changes
in the indulin molecule was obtained by infrared spectrophotometry.Peer reviewe