Inhibition of Cellulases of Wood - Decay Fungi
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Toner Removal by Alkaline-Active Cellulases from Desert Basidiomycetes
Two isolates of wood-decay basidiomycetous fungi from the Sonoran Desert were selected from a preliminary screening of an extensive collection of wood-decay fungi. The isolates produced extracellular, alkaline-active carboxymethyl cellulase (CMCase) and filter paper cellulase activity, especially on solid substrates. Cultivation on wheat bran gave a higher cellulase yield than cultivation on co...
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Brown-rot fungi, e.g. the dryrot fungus (Serpula lacrymans), are the most harmful microorganisms in wood in service in Finland and in temperate regions. Brownrot fungi cause wood decay primarly by attacking the carbohydrates of the cell walls, leaving lignin essentially undigested. At the initial stage of the decay, the brown-rot fungi seem to operate by a mechanism which cause extensive change...
متن کاملProperties of cellulolytic enzyme systems.
Cellulolytic enzymes are synthesized by a large number of micro-organisms which include fungi, actinomycetes, gliding bacteria (myxobacteria) and true bacteria. However, only the fungi appear to excrete large amounts of cellulase enzymes in active form into culture media and not surprisingly these are the enzyme systems that have been most extensively studied. Bacterial cellulases are cell-wall...
متن کاملInhibition of wood decay and termite damage by calcium precipitation
Fungal decay of wood in service, especially brown-rot, results in billions of dollars (US) of losses annually. Recent environmental restrictions, both U.S. and international, are limiting or eliminating the use of broad spectrum biocides for wood preservation, primarily due to problems with disposal. In order to design new, environmentally benign methods for control of wood decay fungi, it is e...
متن کاملGenomewide analysis of polysaccharides degrading enzymes in 11 white- and brown-rot Polyporales provides insight into mechanisms of wood decay.
To degrade the polysaccharides, wood-decay fungi secrete a variety of glycoside hydrolases (GHs) and carbohydrate esterases (CEs) classified into various sequence-based families of carbohydrate-active enzymes (CAZys) and their appended carbohydrate-binding modules (CBM). Oxidative enzymes, such as cellobiose dehydrogenase (CDH) and lytic polysaccharide monooxygenase (LPMO, formerly GH61), also ...
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تاریخ انتشار 2011