[On the identity of Candida utilis and Pichia jadinii yeast species].

Mikrobiolohichnyi zhurnal (Kiev, Ukraine : 1993)

PubMedID: 11944341

Ignatova EA, Nagornaia SS, Sudenko VI, Podgorskii VS. [On the identity of Candida utilis and Pichia jadinii yeast species]. Mikrobiol Z. 2002;64(1):20-6.
Life cycles of Candida utilis (Henneberg) Lodder et Kreger-van Rij imperfect yeast (13 strains) used in industry were the study subject. When the strains were mated, we detected one of the stages of sexual process--conjugation of cells of the opposite mating type. Most of the studied cultures conjugated on the 2d-3d day. No ascospores were formed. Haploidy and heterothallism of the studied C. utilis strains were confirmed by hybridization of auxotrophic mutants. Based on PCR assay results, the yeasts are demonstrated to belong to the ascospore perfect yeast species of Pichia jadinii (A. et R. Sartory. We ill et Meyer, Wickerham) Kurtzman.