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Remarks (public):For a complete description including images see 
Remarks (internal):The species is characterized by rapidly growing colonies, sparsely sporulating with soft-walled cream coloured ascomata. Although mostly found in soils (IMI, 1988), N. fischeri has often been isolated from canned goods, because of its exceptional heat resistance. Kavanagh et al. (1963) isolated N. fischeri from canned strawberries. In a ten year survey of canned produce in Ireland, McEvoy and Stuart (1970) isolated N. fischeri from canned strawberries for 9 out of the 10 years. It has also been isolated from fruit drink (Splittstoesser & Splittstoesser, 1977; Pitt & Hocking, 1985), canned apples, and a barley silo (IMI, 1988).
Description type:Non-original description 
Description:Neosartorya fischeri (Wehmer) Malloch & Cain, Can. J. Bot. 50: 2621, 1973.
Aspergillus fischeri Wehmer, Centr. Bakteriol. Parasitenk. Abt. II 18: 390, 1907.
Sartorya fumigata Vuill., Compt. rendu Acad. Sci. Paris 184: 136, 1927.
Anamorph: Aspergillus fischerianus Samson & W. Gams, Advances in Penicillium and Aspergillus Systematics: 39, 1986.
Colonies on CZ and MEA spreading, floccose, with white mycelium enveloping cream coloured ascomata, sparsely sporulating. Ascomata light cream in colour, 400 µm diam., maturing in 9-12 days, soft-walled. Ascospores spherical to ellipsoidal, 7-8 x 3-4 µm, convex walls with reticulate ornamentation (LM and SEM) and two sinuous equatorial crests. Conidial heads sparsely produced, small, radiate to columnar, grey green to blue green. Conidiophores smooth, hyaline, 300- 500 µm tall. Vesicle pyriform to elongate, 12-18 µm diam. Phialides covering upper two thirds of vesicle, 5-8 x 2-3 µm. Conidia spherical to ellipsoidal, smooth to delicately roughened, 2,5-3 µm diam.
Diseases: On Man and Animals. There is some evidence that N. fischeri can sometimes act as a pathogen (Raper & Fennell, 1965; Wyllie & Morehouse, 1977).
Toxin production: There is some evidence that N. fischeri produces mycotoxins, namely terrein (Shibata et al., 1964) and avenaciolide, fumitremorgins and verruculogen (Frisvad, 1988). Geographical distribution: A thermotolerant soil species of worldwide distribution.
Literature: IMI, Catalogue of the Culture collection of the CAB International Mycological Institute, 1988; Frisvad, in Introduction to food-borne fungi: 240, 1988; Kavanagh et al., Nature, London 198: 1322, 1963; McEvoy & Stuart, Irish J. Agric. Res. 9: 59-67, 1970; Pitt & Hocking, Fungi and Food Spoilage: 279, 1985; Raper & Fennell, The genus Aspergillus: 88, 1965; Shibata et al., List of Fungal Products, Univ. Tokyo Press, 1964; Splittstoesser & Splittstoesser, J. Food Sci. 42: 685-688, 1977; Wyllie & Morehouse, Mycotoxic fungi, mycotoxins, mycotoxicoses, 1977.

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