Laccases belong to the group of phenol oxidizes and constitute one of the most promising classes of enzymes for future use in various fields. For industrial and biotechnological purposes, laccases were among the first enzymes providing larger-scale applications such as removal of polyphenols or conversion of toxic compounds. The wood-degrading basidiomycete Cerrena unicolor C-139, reported in t...

Abstract The article presents the research data on effect of Fusarium blight, Phoma rot, and Sclerotinia blight plant productivity winter spring rapeseed, brown mustard, white mustard. As a result studies, we found that (the pathogens are fungi genus Link) was most harmful for mustard – affection by it significantly decreased productivity. At 4 points degree plants, harmfulness disease reached ...

An intervention trial by Hedges and others (2001) studying 1109 cow-years, in which every lame cow was examined and recorded by a veterinary surgeon, determined the four main causes of lameness to be sole ulcers, white line disease, digital dermatitis and interdigital necrobacillosis (‘foul’ or ‘foot rot’) (see graph on the right). Sole ulcers and white line disease are defects of the hoof and,...

A glutathione S-transferase (GST) was purified to homogeneity from the white-rot fungus, Phanerochaete chrysosporium, by affinity chromatography on glutathione-agarose followed by Mono-Q ion-exchange FPLC. This protein immunoblotted with antisera to rat Theta class GST 5-5 and also showed N-terminal sequence similarity to the Theta class, including the presence of a conserved serine residue tha...

The ligninolytic enzymes produced by the white rot fungus Phanerochaete sordida in liquid culture were studied. Only manganese peroxidase (MnP) activity could be detected in the supernatant liquid of the cultures. Lignin peroxidase (LiP) and laccase activities were not detected under a variety of different culture conditions. The highest MnP activity levels were obtained in nitrogen-limited cul...

Some Basidiomycota were chosen for studies of key ligninases synthesis (25°C, 30 days) in modified medium (shaken or not cultures) with added wheat straw. Liquid Czapek medium with straw yielded a higher amount of laccase than peroxidase, ground straw induced enzyme worse than chopped straw. With peroxidase the reverse dependencies were observed. Laccase of Lentinus edodes synthesized two enzym...

white-rot basidiomycetes are one of the most important lignolytic microorganisms. these fungi have been reported to secrete three main classes of lignin degrading enzymes: lignin peroxidases (lips), manganese peroxidases (mnps) and laccases. in this study, for the first time the lignin degrading capability of two plant pathogens i.e. hyphodermella rosae and h. corrugata was evaluated using both...

The decay resistance of oil-heat treated aspen wood (Populus tremula l.) against white rot fungi (Coriolus versicolor) and brown rot fungi (Coniophora puteana) was investigated. Three different temperature stages and two time levels for oil heat treatment for the selection of optimum conditions were determined. Linseed oil as a heating medium was used. The mass loss of treated samples that were...

Proposed is a method to investigate degradation of lignocelluloses by pure cultures of basidiomycetes using preserving jars with vermiculite as reservoir for water and nutrients. Bamboo samples of Gigantochloa atroviolacea and Phyllostachys pubescens and wood samples of Fagus sylvatica and Pinus sylvestris were inoculated with the brown-rot fungus Coniophora puteana and the white-rot fungus Sch...