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  • 1980-1984  (2)
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  • 1
    ISSN: 1432-0991
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Twenty-five of 37Cryptococcus neoformans strains of known serotype produced the basidiomycetousFilobasidiella state either alone or when paired with a strain of compatible mating-type. Sixteen strains were “α” mating-type, four strains were “a” mating-type, and five strains were self-fertile.F. neoformans serotypes A and D were interfertile with compatible mating-types ofF. bacillispora serotypes B and C.C. neoformans var.gattii was interfertile with compatible mating-types ofF. neoformans andF. bacillispora. F. bacillispora strains, which utilized creatinine andl-malic acid, were interfertile with compatible mating-types ofF. neoformans, which did not utilize creatinine andl-malic acid. The interfertility between serotypes and biotypes eliminates the need for recognizing the names ofC. neoformans var.gattii, C. bacillisporus, andF. bacillispora. It is proposed thatC. neoformans var.gattii andC. bacillisporus be regarded as later, facultative synonyms ofC. neoformans and thatF. bacillispora be regarded as a later, facultative synonym ofF. neoformans.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Mycopathologia 84 (1984), S. 121-131 
    ISSN: 1573-0832
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Ninety-seven strains of Cryptococcus neoformans and C. bacillisporus were examined for 44 biochemical characters and the results were analyzed numerically. One phenon emerged at the 86% level of similarity when strains were clustered according to their M-similarity values. All strains grew in ten carbon sources (D-glucose, D-galactose, arbutin, maltose, sucrose, D-melezitose, D-xylose, D-mannitol, D-glucitol, and meso-inositol), and also grew at 37 ° C and produced urease and phenoloxidase. None of them grew in melibiose, lactose, nor valine, and none reduced nitrate to nitrite. Comparison of selected biochemical characters, creatinine utilization, and serotypes of 49 aberrant strains is presented. Forty-eight of the 97 strains produced the Filobasidiella state either alone or when paired with a strain of compatible mating-type. Filobasidiella neoformans serotypes A and D were interfertile with compatible mating-types of F. bacillispora serotypes B and C. The 44 biochemical characters and 4 serotypes did not predict barriers to mating competence. The present study further substantiates that Filobasidiella neoformans and F. bacillispora are one species.
    Type of Medium: Electronic Resource
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