Chrysosporium

Chrysosporium is a genus of hyaline hyphomycetes fungi in the family Onygenaceae.

Chrysosporium colonies are moderately fast-growing, flat, white to tan to beige in color; they often have a powdery or granular surface texture. Hyaline, one-celled (ameroconidia) are produced directly on vegetative hyphae by non-specialized conidiogenous cells. Conidia are typically pyriform to clavate with truncate bases (6 to 7 by 3.5 to 4 um) and are formed either intercalary (arthroconidia), laterally (often on pedicels), or terminally.

Clinical significance

Species of Chrysosporium are occasionally isolated from skin and nail scrapings, especially from feet, but, because they are common soil saprotrophs, they are usually considered as contaminants. There are about 22 species of Chrysosporium, several are keratinophilic with some also being thermotolerant, and cultures may closely resemble some dermatophytes, especially Trichophyton mentagrophytes, and some strains may also resemble cultures of Histoplasma and Blastomyces.

Chrysosporium has been identified as an emerging infectious disease, first in Canada affecting reptiles at around 1995. It infected eastern massasauga rattlesnakes (Sistrurus catenatus catenatus). By 2011, it had affected northern copperheads (Agkistrodon contortrix mokasen), timber rattlesnakes, black rat snakes, black racer snakes and eastern garter snakes in New Jersey.

Species

Chrysosporium alboluteolum

Chrysosporium alvearium

Chrysosporium articulatum

Chrysosporium barabicum

Chrysosporium botryoides

Chrysosporium carmichaelii

Chrysosporium chiropterorum

Chrysosporium christchurchicum

Chrysosporium clavisporum

Chrysosporium crassitunicatum

Chrysosporium echinulatum

Chrysosporium europae

Chrysosporium fermentatitritici

Chrysosporium filiforme

Chrysosporium fluviale

Chrysosporium foetidum

Chrysosporium georgiae

Chrysosporium globiferum

Chrysosporium gourii

Chrysosporium guizhouense

Chrysosporium hirundinis

Chrysosporium hispanicum

Chrysosporium holmii

Chrysosporium hubeiense

Chrysosporium inops

Chrysosporium jingzhouense

Chrysosporium kreiselii

Chrysosporium kuzurovianum

Chrysosporium leigongshanense

Chrysosporium linfenense

Chrysosporium lobatum

Chrysosporium lucknowense

Chrysosporium magnisporum

Chrysosporium medium

Chrysosporium mephiticum

Chrysosporium merdarium

Chrysosporium minus

Chrysosporium minutisporosum

Chrysosporium oceanitis

Chrysosporium olivaceum

Chrysosporium osteophilum

Chrysosporium pannicola

Chrysosporium pollaceii

Chrysosporium pseudomerdarium

Chrysosporium pyriforme

Chrysosporium qinghaiense

Chrysosporium queenslandicum

Chrysosporium sanyaense

Chrysosporium sepedonioides

Chrysosporium sepedonium

Chrysosporium serratum

Chrysosporium shanxiense

Chrysosporium siglerae

Chrysosporium sinense

Chrysosporium speluncarum

Chrysosporium spinosum

Chrysosporium spinulosum

Chrysosporium submersum

Chrysosporium sulphureum

Chrysosporium synchronum

Chrysosporium tropicum

Chrysosporium tuberculatum

Chrysosporium undulatum

Chrysosporium vallenarense

Chrysosporium zonatum

References

Animal fungal diseases

Mycosis-related cutaneous conditions

Deuteromycota

Onygenales

Taxa described in 1833

Taxa named by August Carl Joseph Corda

Eurotiomycetes genera