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Identification of oral yeasts by polyacrylamide gel electrophoresis. 1991

M F Maiden, and A Tanner
Forsyth Dental Center, Boston, Massachusetts.

Protein profiles of sonicated cells for 9 species of yeast isolated from oral samples were obtained by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE), and visualized with a silver stain. The profiles obtained on 12% acrylamide gels were distinct, and characteristic for 6 species of Candida, and Torulopsis glabrata, Yarrowia lipolytica, and Saccharomyces cerevisiae. Using this method, 79 fresh isolates of yeasts from saliva samples were identified; 58 as Candida albicans, 9 as Candida parapsilosis, 1 as Candida tropicalis, and 11 as T. glabrata. SDS-PAGE offers a rapid, convenient alternative or adjunct to yeast identification systems based on carbohydrate assimilation tests.

UI MeSH Term Description Entries
D002175 Candida A genus of yeast-like mitosporic Saccharomycetales fungi characterized by producing yeast cells, mycelia, pseudomycelia, and blastophores. It is commonly part of the normal flora of the skin, mouth, intestinal tract, and vagina, but can cause a variety of infections, including CANDIDIASIS; ONYCHOMYCOSIS; VULVOVAGINAL CANDIDIASIS; and CANDIDIASIS, ORAL (THRUSH). Candida guilliermondii var. nitratophila,Candida utilis,Cyberlindnera jadinii,Hansenula jadinii,Lindnera jadinii,Monilia,Pichia jadinii,Saccharomyces jadinii,Torula utilis,Torulopsis utilis,Monilias
D004591 Electrophoresis, Polyacrylamide Gel Electrophoresis in which a polyacrylamide gel is used as the diffusion medium. Polyacrylamide Gel Electrophoresis,SDS-PAGE,Sodium Dodecyl Sulfate-PAGE,Gel Electrophoresis, Polyacrylamide,SDS PAGE,Sodium Dodecyl Sulfate PAGE,Sodium Dodecyl Sulfate-PAGEs
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D012440 Saccharomyces A genus of ascomycetous fungi of the family Saccharomycetaceae, order SACCHAROMYCETALES. Saccharomyce
D012463 Saliva The clear, viscous fluid secreted by the SALIVARY GLANDS and mucous glands of the mouth. It contains MUCINS, water, organic salts, and ptylin. Salivas
D015003 Yeasts A general term for single-celled rounded fungi that reproduce by budding. Brewers' and bakers' yeasts are SACCHAROMYCES CEREVISIAE; therapeutic dried yeast is YEAST, DRIED. Yeast

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