Effect of Some Different Culture Conditions on Production of Cellulolytic and Plant Tissue Macerating Enzymes byIrpex lacteusFr.

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Abstract
Production of extracellular polysaccharidases by Irpex lacteus Fr. was studied in different culture conditions. The presence of fatty acids such as linolic, linolenic, erucic, palmitic acids etc. caused remarkably to increase the production of ceîlulase (filter paper disintegrating activity, FD), laminarinase and xylanase. On the contrary, fatty acids had not any special effect on the production of cellulolytic enzymes such as Avicelase and CMCase and of plant tissue macerating enzymes (MA). When two kinds of carbon sources, e.g., cellulose powder and potato pulp were mixed together and used as an inducer, polysaccharidase production investigated, with the exception of CMCase, increased higher than when the two substances were used separately.