Growth and filament production of Pityrosporum orbiculare and P. ovale on human stratum corneum in vitro
Faergemann, J.; Aly, R.; Maibach, H.I.
Acta Dermato-Venereologica 63(5): 388-392
1983
ISSN/ISBN: 0001-5555 PMID: 6197836 Document Number: 201727
When P. orbiculare [Malassezia furfur] and P. ovale [M. ovalis] were incubated with stratum corneum epithelial cells, suspended in phosphate-buffered saline, for 90 min. at 37 degrees C, short filaments were produced by 11-17.5% of the yeast cells. When the stratum corneum pieces were incubated for 5 days in 7% CO2, a picture resembling that seen microscopically in tinea versicolor was observed; filaments were produced by 39-48% of the yeast cells.