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Hyphae are described as "gloeoplerous" ("gloeohyphae") if their high refractive index gives them an oily or granular appearance under the microscope. These cells may be yellowish or clear . They can sometimes selectively be coloured by sulphovanillin or other reagents. The specialized cells termed cystidia can also be gloeoplerous. [16] [17]
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Under the microscope, the India ink stain is used for easy visualization of the capsule in cerebral spinal fluid. [10] The particles of ink pigment do not enter the capsule that surrounds the spherical yeast cell, resulting in a zone of clearance or "halo" around the cells. This allows for quick and easy identification of C. neoformans.
It was first described under the genus Saccharomyces, but in 1983, it was reclassified to its current name in the work by Barnett et al. [1] The yeast has a long history as a well-known spoilage yeast within the food industry , because several species in this genus are significantly resistant to many of the common food preservation methods.
Under the microscope Tinea versicolor is recognized by curved hyphae and round yeast forms that give it a spaghetti-and-meatball appearance. Yeast cells appear round or oval and budding forms may be seen. The KOH prep cannot identify the specific organism; the specimen can be submitted for fungal culture to identify the organism.
Saccharomyces is a genus of fungi that includes many species of yeasts. Saccharomyces is from Greek σάκχαρον (sugar) and μύκης (fungus) and means sugar fungus.Many members of this genus are considered very important in food production where they are known as brewer's yeast, baker's yeast and sourdough starter among others.
The yeasts can often be seen under the microscope within the lesions and typically have a so-called "spaghetti and meatball appearance" [11] as the round yeasts produce filaments. In people with dark skin tones, pigmentary changes such as hypopigmentation (loss of color) are common, while in those with lighter skin color, hyperpigmentation ...
The dying yeast cells are then heated to complete their breakdown, after which the husks (yeast with thick cell walls that would give poor texture) are removed. Yeast autolysates are used in Vegemite and Promite (Australia); Marmite (the United Kingdom); the unrelated Marmite (New Zealand); Vitam-R (Germany); and Cenovis (Switzerland).