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Page number:769 
Description type:Non-original description 
Description:Myceliophthora thermophila (Apinis) v. Oorschot
Colony characteristics. Colonies (MEA 2%, 30°C) growing rapidly, velvety to woolly, pale brown.
Microscopy. Conidiophores undifferentiated, hyaline, smooth-walled. Conidia borne on short protrusions, singly or in small groups on ampulliform swellings, obovoidal to pyriform, hyaline, 4.5-11.0 x 3.0-4.5 µm, initially rough-walled, becoming smooth-walled in old cultures, with thick walls.
Teleomorph. Corynascus heterothallicus (v. Klopotek) v. Arx (Ascomycota, Euascomycetes, Sordariales: Chaetomiaceae).
Ascomata spherical, non-ostiolate, glabrous. Peridium of textura epidermoidea. Asci 8-spored, spherical, 25-35 x 10-15 µm, with evanescent wall. Ascospores ellipsoidal to ovoidal, brown, 7.5-11.0 x 4.5-7.0 µm, with a distinct germ pore at both ends.
Physiology. The species is thermophilic.
Pathogenicity. BSL-1. Occurring in self-heated environments such as compost. Systemic infections in immunocompromised (McGough et al., 1991; Bourbeau et al., 1992) and major surgery patients (Farina et al., 1998). A mixed brain infection was reported by Tekkok et al. (1996).
References. Van Oorschot (1977), Manoch et al. (1986).
Nomenclature. Sporotrichum thermophilum Apinis - Nova Hedwigia 5: 74, 1962 ? Chrysosporium thermophilum (Apinis) von Klopotek - Arch. Mikrobiol. 98: 366, 1974 ? Myceliophthora thermophila (Apinis) van Oorschot - Persoonia 9: 403, 1977.
Thielavia heterothallica von Klopotek - Arch. Mikrobiol. 107: 223, 1976 ? Corynascus heterothallicus (von Klopotek) von Arx - Sydowia 34: 25, 1981.
 
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