Isolation and purification of chiamydospores of Candida albicans. 2003

W Fabry, and E N Schmid, and M Schraps, and R Ansorg
Institute of Medical Microbiology, University of Essen, Hufelondstr. 55, D-45122 Essen, Germany. ernst.schmid@uni-essen.de

Two methods were investigated for their efficiency in isolating and purifying chlamydospores of Candida albicans. Chlamydospores were disconnected from pseudomycelial cells either enzymatically using beta-glucuronidase or mechanically by ultrasonic treatment. Free chlamydospores were separated from other cell material by sucrose gradient centrifugation. The resulting preparations were inspected by light-microscopy and electron-microscopy. Both methods yielded preparations with a level of over 90% chlamydospore cells. Ultrasonic treatment caused little change to the ultrastructure of the chlamydospores, whereas the enzyme treatment profoundly affected the cell wall. It is concluded that ultrasonic treatment is an efficient method for obtaining pure preparations of chlamydospores.

UI MeSH Term Description Entries
D008854 Microscopy, Electron Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen. Electron Microscopy
D002176 Candida albicans A unicellular budding fungus which is the principal pathogenic species causing CANDIDIASIS (moniliasis). Candida albicans var. stellatoidea,Candida stellatoidea,Dematium albicans,Monilia albicans,Myceloblastanon albicans,Mycotorula albicans,Parasaccharomyces albicans,Procandida albicans,Procandida stellatoidea,Saccharomyces albicans,Syringospora albicans
D005966 Glucuronidase Endo-beta-D-Glucuronidase,Endoglucuronidase,Exo-beta-D-Glucuronidase,beta-Glucuronidase,Endo beta D Glucuronidase,Exo beta D Glucuronidase,beta Glucuronidase
D013172 Spores, Fungal Reproductive bodies produced by fungi. Conidia,Fungal Spores,Conidium,Fungal Spore,Spore, Fungal
D014465 Ultrasonics A subfield of acoustics dealing in the radio frequency range higher than acoustic SOUND waves (approximately above 20 kilohertz). Ultrasonic radiation is used therapeutically (DIATHERMY and ULTRASONIC THERAPY) to generate HEAT and to selectively destroy tissues. It is also used in diagnostics, for example, ULTRASONOGRAPHY; ECHOENCEPHALOGRAPHY; and ECHOCARDIOGRAPHY, to visually display echoes received from irradiated tissues. Ultrasonic

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