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Published on: March 15, 2012
Phenotypic Alterations upon Magnesium Addition in Trichosporonales Yeasts
Keita Aoki1, Takashi Sugita2, Masako Takashima1
1Laboratory of Yeast Systematics, Tokyo NODAI Research Institute, Tokyo University of Agriculture.
Abstract:
Yeasts show few distinct morphological characteristics. The two basic forms of yeast, unicellular yeast and multicellular hyphal form, exhibit dimorphism. In a recent study on Trichosporon asahii, a dimorphic basidiomycetous yeast that causes trichosporonosis, the addition of magnesium induced hyphal formation and changes in organelle distribution. A detailed observation of organelle distribution revealed that the responses to magnesium addition varied widely among Trichosporonales yeasts. In this review, we show that differences in organelle phenotypes upon magnesium addition possibly contribute to the practical identification and classification of Trichosporonales yeasts.

