Species/Subspecies: | Malassezia pachydermatis | ||||||||||
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Categories: | Animal pathogen; human pathogen | ||||||||||
Etymology: | Genus name: Named after the French scientist Louis-Charles Malassez. Species epithet: Greek for thick-skin. |
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Alternative Species Name(s): | Pityrosporum malassez | ||||||||||
Significance: | [Very important] | ||||||||||
Taxonomy: |
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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: |
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18S rRNA Seq: |
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ITS regions: |
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Taxonomy/phylogeny: | About 20 species have been described within this genus. | ||||||||||
Comment: | The disease is zoonotic. | ||||||||||
Reference(s): | No. 20 | ||||||||||
Updated: | 2022-06-22 |