Cryptococcus lupi sp. nov., an Antarctic Basidioblastomycete

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Abstract
C. lupi sp. nov. was isolated from soil samples from the Dry Valleys of South Victoria Land, Antarctica. The guanine-plus-cytosine content (53.3 mol%) of C. lupi DNA differs by more than 1.5 mol% from the guanine-plus-cytosine contents of biotypes originally described under the name C. vishniacii. The type strain of C. lupi (MYSW 202Y252 = ATCC 44529) differs phenotypically from the type strain of C. vishniacii in that it assimilates cellobiose, methyl-.alpha.-D-glucoside and salicin and fails to assimilate .gamma.-amino butyric acid, gluconate, 2-ketogluconate, 5-ketogluconate, L-rhamnose, and succinate; it also differs by having a higher maximum growth temperature and in its cell size and ratio of cell width to length.