| Species/Subspecies: | Malassezia pachydermatis | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Categories: | Animal pathogen; human pathogen | ||||||||||
| Etymology: | Genus name: Named after the French scientist Louis-Charles Malassez. Species epithet: Greek for thick-skin. |
||||||||||
| Alternative Species Name(s): | Pityrosporum malassez | ||||||||||
| Significance: | [Very important] | ||||||||||
| Taxonomy: |
| ||||||||||
| Macromorphology (smell):
| The colonies are creamy and yellowish and smooth to wrinkled and convex with an edge, which has a slightly lobed appearance. M. pachydermatis can be cultivated on Sabaroud agar. | ||||||||||
| Micromorphology: | The size of the ovoidal cells are 3.0–6.5 x 2.5 µm. | ||||||||||
| Reproduction: | |||||||||||
| Enzymes: | Catalase + | ||||||||||
| Spec. Char.: | Optimal growth temperature is 30-37°C. M pachydermatis is the only species in its genus that grows in the absence of fatty acids, although growth is stimulated by fatty acids. | ||||||||||
| Reservoir: | Can be found in the normal flora of the skin healthy mammals. | ||||||||||
| Disease/effect: | |||||||||||
| Virulence Factors: | Chondroitin-sulfatase, hyaluronidase, phospholipase and proteinase, which are tissue degrading enzymes. | ||||||||||
| Diagnostics: | Cytological examination of the suspected area of the animal. | ||||||||||
| Genome Sequence: |
|
||||||||||
| 18S rRNA Seq: |
| ||||||||||
| ITS regions: |
| ||||||||||
| Taxonomy/phylogeny: | About 20 species have been described within this genus. | ||||||||||
| Comment: | The disease is zoonotic. | ||||||||||
| Reference(s): | No. 20 | ||||||||||
| Updated: | 2022-06-22 |