Journal
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
Volume 67, Issue 11, Pages 4332-4339Publisher
MICROBIOLOGY SOC
DOI: 10.1099/ijsem.0.002211
Keywords
patagonia; cold environments; red yeast; psychrophile
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Funding
- Universidad Nacional del Comahue [B171-B199]
- Agencia Nacional de Investigaciones Cientificas, ANPCyT [PICT2014-2542]
- CONICET [PIP392]
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq-Brazil)
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During a survey of carotenogenic yeasts from cold and oligotrophic environments in Patagonia, several yeasts of the genus Dioszegia (Tremellales, Agaricomycotina) were detected, including three strains that could not be assigned to any known taxa. Analyses of internal transcribed spacer and D1/D2 regions of the large subunit rRNA gene showed these strains are conspecific with several other strains found in the Italian Alps and in Antarctica soil. Phylogenetic analyses showed that 19 of these strains represent a novel yeast species of the genus Dioszegia. The name Dioszegia patagonica sp. nov. is proposed to accommodate these strains and CRUB 1147(T) (UFMG 195(T) = CBMAI 1564(T) = DBVPG 10618(T) = CBS 14901(T); MycoBank MB 819782) was designated as the type strain. This Dioszegia species accumulates biotechnologically valuable compounds such as carotenoid pigments and mycosporines.
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