title: [Antistress cross-protection of UV irradiated yeast cells with participation of extracellular peptide factors].
abstract: Antistress effect of extracellular peptides on UV irradiated yeast of different phylogenetic groups was studied. Yeast from different ecotopes and taxonomic groups exposed to UV radiation of a lethal intensity showed a protective effect and reactivating effect with participation of extracellular peptides. The highest protective activity was found in peptide reactivation factors (RFs) of bakery yeast-Saccharomyces cerevisiae, Kluyveromyces fragilis, and Candida utilis; the highest reactivating activity was exhibited by factors of the above-mentioned cultures and Debariomyces hansenii. Cross-protective and reactivating effects of RFs of yeast belonging to different taxonomic groups were demonstrated. Cross-protection increased two to three times after preexposure of reactivation factors to UV light (activation) in contrast to their reactivating effect.
authors.forename: L I
authors.initials: LI
authors.lastname: Vorob'eva
authors.forename: E Iu
authors.initials: EIu
authors.lastname: Khodzhaev
authors.forename: M M
authors.initials: MM
authors.lastname: Vustin
mesh_terms: D015169:Colony Count, Microbial; D045604:Extracellular Fluid / Q000378:metabolism*; D005658:Fungi / Q000254:growth & development / Q000378:metabolism / Q000528:radiation effects*; D010455:Peptides / Q000378:metabolism / Q000494:pharmacology*; D011837:Radiation-Protective Agents / Q000378:metabolism / Q000494:pharmacology*; D013312:Stress, Physiological; D013559:Symbiosis / Q000528:radiation effects; D014466:Ultraviolet Rays / Q000009:adverse effects
chemical_list: D010455:Peptides; D011837:Radiation-Protective Agents