Sanyal A K, Banerjee A B
Folia Microbiol (Praha). 1983;28(2):82-6. doi: 10.1007/BF02877361.
Urease activity was detected in the dermatophyte Trichophyton mentagrophytes cells at early exponential phase of growth. Specific activity of urease decreased with culture age. At exogenous urea concentrations above 2 mM formation of urease was inhibited. The pH optimum lay at 7-7.5, the Km being 14 mM. No urease activity could be detected in cell-free culture fluid of T. mentagrophytes. No endo- or exocellular urease activity could be detected in a T. rubrum strain grown with or without urea.
在皮肤癣菌须癣毛癣菌生长的指数生长期早期，可检测到脲酶活性。脲酶的比活性随培养时间而降低。当外源尿素浓度高于2 mM时，脲酶的形成受到抑制。最适pH值为7 - 7.5，米氏常数为14 mM。在须癣毛癣菌的无细胞培养液中未检测到脲酶活性。在用或不用尿素培养的红色毛癣菌菌株中，均未检测到细胞内或细胞外脲酶活性。
