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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 .
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]
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]
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 japonica is a fungus that can cause opportunistic infections in animals. [1] References This page was last edited on 19 January 2024, at 14:38 (UTC). ...
Malassezia nana is a fungus that can cause opportunistic infections in animals. [ 1 ] [ 2 ] It was first isolated from animals in Japan and Brazil. M. nana resembles M. dermatis and M. sympodialis , but is distinguished from these species by its inability to use Kolliphor EL (Sigma) as the sole lipid source and to hydrolyse aesculin .