Production of Pigments and Photo-Protective Compounds by Cold-Adapted Yeasts

摘要: The structure of microbial communities in cold environments is not only shaped by temperature, but also other factors determine which species can survive. Ultraviolet radiation (UVR) one these and microorganisms bearing photo-protective defence mechanisms colonize exposed to high UVR levels. In yeasts collected from Patagonia, among environments, secondary metabolites such as carotenoids mycosporines appeared be produced the most frequent compounds. Production quite common cold-adapted yeasts, some produce unique carotenoids, like plectaniaxanthin astaxanthin, are found mesophilic species. On hand, production appears several has been intensively studied isolated high-altitude Patagonian lakes, revealing that including Phaffia Dioszegia, mycosporine-producing Both compounds effectively protect yeast cells against UVR.