Abstract
Twenty-one psychrophilic yeast isolates related to the Camptobasidiaceae family in the Microbotryomycetes class were obtained from ice collected from cold environments worldwide. A new psychrophilic species from the recently described genus Cryolevonia, Cryolevania giraudoae is proposed to accommodate 18 isolates from Patagonia (Argentina) and Antarctica (holotype CRUB 2086T). In addition, a new psychrophilic species in the genus Camptobasidium is described as Camptobasidium gelus sp. nov. (holotype CBS 8941T), based on three isolates from glacial ice in the Russel glacier (Greenland ice sheet) and Antarctica. The strict psychrophilic profile is the salient feature of both novel species.
Highlights
Twenty-one psychrophilic yeast isolates related to the Camptobasidiaceae family in the Microbotryomycetes class were obtained from ice collected from cold environments worldwide
Several isolates from Argentina and Antarctica were found to represent a novel species within Cryolevonia, here described as Cryolevonia giraudoae Centro Regional Universitario Bariloche (CRUB) 2086T
When the physiological profile of the 18 isolates included in clade one was compared to other Microbotryomycetes, we observed that they differed from Cryolevonia schafbergensis in their positive assimilation of ribitol and xylitol as sole carbon sources and lysine as sole nitrogen source
Summary
GenBank accession number (ITS/D1D2) MN622687/MN626546 MN622688/MN626547 MN622689/MN626548 MN622690/MN626549 MN622691/MN626550 MN622692/MN626551 MN622693/MN626552 MN622694/MN626553 MN622695/MN626554 MN622696/MN626555 MN622697/MN626556 MN622698/MN626557 MN622700/MN626559 MN622699/MN626558 MN622701/FJ841888 MN622702/FJ841890 MN622703/MN626560 MN622704/MN626561 MN626542/MN626544 MN626543/MN626545 AY040665/AY040647
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