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Various amino acids, their analogues and vitamins have shown stimulatory as well as inhibitory effects on laccase production by Cyathus bulleri. dl-methionine, dl-tryptophan, glycine and dl-valine stimulated laccase production, while l-cysteine monohydrochloride completely inhibited the enzyme production. Among vitamins tested biotin, riboflavin and pyridoxine hydrochloride were found to induce laccase...
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