title: Isolation and purification of morphogenic autoregulatory substance produced by Candida albicans.
abstract: The human pathogenic, dimorphic fungus Candida albicans produces in vitro a factor designated morphogenic autoregulatory substance (MARS) which suppresses yeast to mycelial transition. MARS is best produced when a high concentration of yeast cells (2 X 10(8)/ml) in a chemically defined medium is incubated at 37 degrees C for 9-15 h. MARS was isolated to apparent homogeneity by the following successive steps: charcoal absorption; pyridine elution; ether extraction; high pressure liquid chromatography, and Sephadex LH-20 chromatography. A 469-fold increase in purity was obtained by these procedures. The use of purified MARS to study C. albicans yeast to mycelial transition may lead to a better understanding of morphogeneis of this important opportunistic pathogen.
mesh_terms: D002176:Candida albicans / Q000254:growth & development*; D002851:Chromatography, High Pressure Liquid; D002855:Chromatography, Thin Layer; D006133:Growth Substances / Q000302:isolation & purification*; D007700:Kinetics
chemical_list: D006133:Growth Substances