Abstract
The ability to produce extracellular laccase by strains of Azospirillum (A. brasilense Sp7, Sp107, Sp245, SR80, A. lipoferum SR42, Sp59b, A. picis TAR-3, A. tiophilum Bv-S, and A. amazonense Am) and Niveispirillum (N. irakense KBC1 and N. irakense KA3) has been established. Induction of enzyme activity by a number of aromatic compounds and copper ions has been shown. A homogeneous preparation of the extracellular laccase of A. brasilense Sp245 strain has been isolated and partially characterized for the first time.
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