Characterization of aTrichophyton mentagrophytesand its diffusible pigment
- 1 January 1972
- journal article
- Published by Oxford University Press (OUP) in Medical Mycology
- Vol. 10 (1) , 86-93
- https://doi.org/10.1080/00362177285190171
Abstract
A clinical isolate of Trichophyton mentagrophytes which produces a diffusible red-brown pigment as well as typical microconidia en grappe and abundant spirals on Sabouraud's Dextrose Agar has been studied. It splits urea and perforates hair in vitro but does not produce pigment on cornmeal agar or require vitamins for growth. A low molecular weight, red pigment, partially purified from culture filtrates by gel-filtration, was characterized as 2-carboxy 2,3-dihydroindole-5,6-quinone, an intermediate in melanin biosynthesis. It is water soluble, lacks free amino groups, unstable in alkaline buffers, and has spectral absorption peaks at 320–340 nm and 450–490 nm.Keywords
This publication has 12 references indexed in Scilit:
- Morphologie und Biologie des Trichophyton mentagrophytes (Robin) Blanchard var. goetzii var. nova*Mycoses, 2009
- Some unusual dermatophyte infectionsMedical Mycology, 1969
- Sexual stimulation betweenArthroderma simiiStockd., Mackenzie & Austwick and related speciesMedical Mycology, 1968
- The perfect state ofTrichophyton mentagrophytesMedical Mycology, 1967
- Non-keratinous agar media as substrates for the ascigerous state in certain members of the gymnoascaceae pathogenic for man and animalsMedical Mycology, 1967
- Colorimetric Method for Determination of Sugars and Related SubstancesAnalytical Chemistry, 1956
- PROTEIN MEASUREMENT WITH THE FOLIN PHENOL REAGENTJournal of Biological Chemistry, 1951