Antistress cross-protection of UV-irradiated yeast cells with participation of extracellular peptide factors

Autor: E. Yu. Khodzhaev, M. M. Vustin, Vorob'eva Li
Rok vydání: 2011
Předmět:
Zdroj: Applied Biochemistry and Microbiology. 47:264-269
ISSN: 1608-3024
0003-6838
DOI: 10.1134/s0003683811030185
Popis: 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.
Databáze: OpenAIRE