Journal ArticleDOI
Urease activity in Trichophyton mentagrophytes.
A. K. Sanyal,A. B. Banerjee +1 more
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Urease activity was detected in the dermatophyteTrichophyton mentagrophytes cells at early exponential phase of growth and decreased with culture age, and at exogenous urea concentrations above 2 mm formation of urease was inhibited.Abstract:
Urease activity was detected in the dermatophyteTrichophyton 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 ofT. mentagrophytes. No endoor exocellular urease activity could be detected in aT. rubrum strain grown with or without urea.read more
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Ureolytic microorganisms and soil fertility: A review
TL;DR: The degradative process of the ureolytic microorganims on animal and plant organic N wastes could help to satisfy condition of eliminating excessive wastes and pollution and simultaneously supply plant with available N.
Journal ArticleDOI
Factors affecting growth and urease production by Trichophyton spp.
TL;DR: Among Trichophyton spp.
Journal ArticleDOI
Factors affecting ureolytic activities of Penicillium waksmanii isolated from sewage sludge
M. A. Ismail,S. A. Omar +1 more
TL;DR: In this paper, the maximum extracellular urease production was recorded at a urea concentration of 15 g/L, which peaked after 6 d of incubation at 25°C when the initial pH of the glucose-peptone broth was adjusted to 6.
References
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Journal Article
Protein Measurement with the Folin Phenol Reagent
TL;DR: Procedures are described for measuring protein in solution or after precipitation with acids or other agents, and for the determination of as little as 0.2 gamma of protein.
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In vitro hair cultures for differentiating between atypical isolates of Trichophyton mentagrophytes and Trichophyton rubrum.
Libero Ajello,Lucille K. Georg +1 more
TL;DR: Isolates of T. mentagrophytes and T. rubrum are encountered that cannot be distinguished from each other solely on the basis of morphological criteria.
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The differentiation of Trichophyton ment agrophites from T. rubrum by a simple urease test
TL;DR: The urease test offers a rapid and reliable method of separating these two species and is effective in separating T. rubrum and T. erinacei.
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Micro-chemical methods of blood analysis
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Nutritional Studies of the Dermatophytes with Special Reference to Trichophyton Megnini Blanchard 1896 and Trichophyton Gallinae (Megnin 1881) Comb. Nov.
Margarita Silva,Rhoda W. Benham +1 more
TL;DR: There is still some disagreement among both European and American mycologists as to the number of species they recognize, and also which ones should be regarded as variants and which should fall into synonymy.