New filobasidiaceous yeasts found in the phylloplane of a fern

The Journal of General and Applied Microbiology
Wladyslav I Golubev, Jose P Sampaio

Abstract

Nitrate-positive strains of anamorphic yeasts representing the genus Cryptococcus were isolated on fern infusion agar from Athyrium filix-femina. Phylogenetic analyses of the D1/D2 domain of the LSU rRNA and of the ITS region placed them in Cylindricus clade in the Filobasidiales. Morphological and physiological characteristics, as well as mycocinotyping and molecular analysis, show a close affinity between strains. Subsequent comparative studies of new isolates revealed that they were not conspecific with any other known Cryptococcus species, and the cultures represented an undescribed species with two varieties, for which the names Cryptococcus filicatus var. filicatus (type strain VKM Y-2954 = CBS 10874) and Cryptococcus filicatus var. pelliculosus (type strain VKM Y-2955 = CBS 10875) are proposed.

References

Jun 8, 2000·International Journal of Systematic and Evolutionary Microbiology·J W FellA Statzell-Tallman
Jul 13, 2004·The Journal of General and Applied Microbiology·Wladyslav I GolubevEllen W Golubeva
Dec 13, 2005·Antonie van Leeuwenhoek·Wladyslav I GolubevEllen W Golubeva

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