The acidic culture medium with phenol red indicator, as modified from Taplin et al., proved successful. All dermatophytes stained red and also turned the medium red. This medium facilitates and accelerates dermatophyte diagnostics in combination with other conventional media.
Fragner P., Pavlíčková H., Sodomková M. (1972): Nährboden mit Indikator für Dermatophytenzüchtung. – Česká Mykologie 26(4): 228–229.