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Expanding evolutionary diversity in the Ustilaginomycotina: Fereydouniaceae fam. nov. and Fereydounia gen. nov., the first urocystidalean yeast lineage |
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| Authors: | Shaghayegh Nasr Mohammad Reza Soudi Seyed Abolhassan Shahzadeh Fazeli Hai D T Nguyen Matthias Lutz Marcin Pi?tek |
| Institution: | 1. Microorganism Bank, Iranian Biological Resource Center (IBRC), ACECR, Tehran, Iran 2. National Laboratory of Industrial Microbiology, Department of Biology, Faculty of Sciences, Alzahra University, Tehran, Iran 3. Department of Biology, University of Ottawa, Ottawa, Ontario, Canada, K1N 6N5 4. Institute of Evolution and Ecology, University of Tübingen, Tübingen, Germany 5. Department of Mycology, W. Szafer Institute of Botany, Polish Academy of Sciences, Lubicz 46, PL-31-512, Cracow, Poland |
| Abstract: | The systematic position of two strains of a yeast-like fungus isolated from plant remnants on the Kharg Island in the Persian Gulf of Iran is evaluated using morphological, physiological and phylogenetic analyses. In culture, this fungus produced cylindrical cells that reproduced by polar budding on short stalks. Production of ballistoconidia and blastospores was observed. The carbon source assimilation spectrum was broad, but fermentation ability was absent. Phylogenetic analyses of the nuclear SSU, LSU (D1/D2 domain), and ITS rDNA revealed that this fungus represents a new lineage in the Urocystidales of the subphylum Ustilaginomycotina. Based on the comparison of phenotypic characters, physiology, and DNA sequences, a new genus and species Fereydounia khargensis (IBRC-M 30116T?=?CBS 13305T) is described for this fungus and accommodated in the novel family Fereydouniaceae. This is the first report of anamorphic saprobic fungus residing in the Urocystidales, stressing the remarkable evolutionary diversity in the subphylum Ustilaginomycotina. |
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