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Malassezia is a genus of fungi (specifically, a yeast). Some species of Malassezia are found on the skin of animals, including humans. Because malassezia requires fat to grow, [3] it is most common in areas with many sebaceous glands—on the scalp, [4] face, and upper part of the body.
Malassezia furfur (formerly known as Pityrosporum ovale) is a species of yeast (a type of fungus) that is naturally found on the skin surfaces of humans and some other mammals. It is associated with a variety of dermatological conditions caused by fungal infections , notably seborrhoeic dermatitis and tinea versicolor .
A project in 2007 has sequenced the genome of dandruff-causing Malassezia globosa and found it to have 4,285 genes. [5] [6] M. globosa uses eight different types of lipase, along with three phospholipases, to break down the oils on the scalp. Any of these 11 proteins would be a suitable target for dandruff medications.
Malassezia sympodialis is a species in the genus Malassezia. [2] It is characterized by a pronounced lipophily, unilateral, percurrent or sympodial budding and an irregular, corrugated cell wall ultrastructure. [3] [4] It is one of the most common species found on the skin of healthy and diseased individuals. [5]
Malassezia pachydermatis is a bottle-shaped, [2] non-lipid dependent lipophilic yeast in the genus Malassezia. [5] Colonies are cream or yellowish in colour, smooth to wrinkled and convex with a margin possessing a slightly lobed appearance. [5] [8] Cells are ovoidal in shape and range in size from 3.0–6.5 x 2.5 μm. [5]
Malassezia folliculitis or pityrosporum folliculitis, [1] is a skin condition caused by infection by Malassezia (formerly Pityrosporum) yeast. [2]: 314 The skin of the upper trunk area including the back, chest, arms and sometimes the neck is often affected and this condition is often seen in young to middle aged adults, although it has been known to occur in adults well into their sixties ...
The majority of tinea versicolor is caused by the fungus Malassezia globosa, although Malassezia furfur is responsible for a small number of cases. [ 2 ] [ 3 ] These yeasts are normally found on the human skin and become troublesome only under certain conditions, such as a warm and humid environment, although the exact conditions that cause ...
Malassezia arunalokei is a species of yeast-like fungus that was identified as a new to science in 2016. It has been isolated from the skin of both seborrheic dermatitis patients and healthy individuals from India. A combination of several phenotypic characteristics distinguish this species from others in genus Malassezia.