Phylum:Ascomycota >> Class: Saccharomycetes >>  Order: Saccharomycetales 
 BCRC Number 22573     22796      
 Scientific Name: Saccharomycopsis crataegensis

Saccharomycopsis crataegensis Kurtzman & Wick, Antonie van Leeuwenhoek 39: 81-87. 1973.

 Description: Growth in glucose-yeast extract-peptone broth: After 3 days at 25°C, the cells are ovoid, elongate to cylindrical, (2.4 -3.2) × (4.0-8.0) µm, single, in pairs, short chain, multilateral budding. Growth on glucose-yeast extract-peptone agar: Aerobic growth is white to cream, butyrous, rough, glistening and flat with filamentous margin. Dalmau plate culture on corn meal agar: After 7 days at 25°C, growth under the coverglass shows abundant true hyphae with conidia. Pseudohyphae are formed. Formation of ascospores: The species appears heterothallic. Asci are ellipsoidal and either borne directly on hyphae or supported by short stalks. Chains of two to four asci formed. Asci form two ascospores and about half of the asci eventually deliquesce. Ascospores are elongated, usually slightly flattened, have a roughened surface, and a median longitudinal ledge.

Taiwan, Taitung: soil in papaya orchard, Dec 1991, BCRC 22573 (Mating type: a). Taiwan, Taichung: grape, Aug 1993, BCRC 22796 (Mating type: a).

 Habitat: Fallen hips of hawthorn Crataegus sp.,peoia illinois grape with sour rot and soil, fallen hawthorne (Crataegus sp.) and fruit..

USA, Italy and Taiwan. Pepeoria


Kurtzman, CP and Wickerham, LJ. 1973; Hsu, WH and Lee, FL. 2000.


F. L. Lee

 Note: The species is placed in biological safety level 1.