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Mycosporines in carotenogenic yeasts |
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| Authors: | Libkind Diego Sommaruga Ruben Zagarese Horacio van Broock Maria |
| Institution: | aLaboratorio de Microbiología Aplicada y Biotecnología, CRUB, UNComahue, (8400), Quintral 1250, Bariloche, CONICET, Argentina bLaboratory of Aquatic Photobiology and Plankton Ecology, Institute of Zoology and Limnology, University of Innsbruck, Innsbruck, Austria cInstituto de Investigaciones Biotecnológicas-Instituto Tecnológico de Chascomús, CONICET, Chascomús, Argentina |
| Abstract: | The ability to produce mycosporines (MYCs) in 157 pigmented yeast strains (eight genera, 25 species) isolated from natural environments of Patagonia (Argentina) was assessed. The strains belong to four taxonomic groups: the Sporidiobolales and Erythrobasidium clade of the class Urediniomycetes, and Cystofilobasidiales and Tremellales of the class Hymenomycetes. Induction of MYCs did not occur in all yeast strains tested and appeared to be an exclusive trait of members of the Erythrobasidium clade and Tremellales. This is the first report on the production of MYCs by pigmented species from the latter group, as well as the first extensive screening of mycosporinogenic yeasts. The consistent occurrence of MYCs in some specific phylogenetic groups suggests this trait bears evolutionary significance and that the presence/absence of MYCs may have potential applications in yeast systematics. |
| Keywords: | Biodiversity Carotenoids Mycosporines Mycosporine-glutaminol-glucoside Photoprotective compounds Systematics Yeasts |
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