Book of Abstracts (PDF) - International Mycological Association

IMC7 Tuesday August 13th Lectures
same species studied. Production of MnP was generally
optimal in SSF of grapevine cuttings sawdust (GCS), but
was repressed by agitation of fungi grown in submerged
liquid culture. Conversely, basidiomycetes laccase activity
was generally enhanced by agitation. The highest laccase
activity (up to 400-800 nkat/ml) was revealed in a
submerged fermentation of mandarin juice production
wastes by the strains of genera Cerrena, whereas extremely
high Mn-dependent peroxidase activity (50-180 nkat/ml)
was found in a SSF of the GCS by Pleurotus ostreatus and
Lentinus edodes. Among the factors tested, only carbon
sources and low-molecular-weight aromatic compounds in
the media have been shown to significantly influence
ligninolytic activity of basidiomycetes. However, the
response of different fungi strains is greatly depending on
chemical nature of the carbon source. Concerning nitrogen
source only increased basidiomycetes growth at presence
of additional nitrogen accounts for the higher levels of
enzymes activity. This work shows that different
approaches might be used to regulate basidiomycetes
ligninolytic activity in general or activity of certain
enzyme, however, caution is necessary when evaluating
ligninolytic capabilities of the white rot fungi.
Book of Abstracts 65