Stratification of yeast cells during chronological aging by size points to the role of trehalose in cell vitality

0462514 - MBÚ 2017 RIV US eng J - Článek v odborném periodiku
Švenkrtová, Andrea - Belicová, Lenka - Volejníková, Andrea - Sigler, Karel - Jazwinski, S.M. - Pichová, Alena
Stratification of yeast cells during chronological aging by size points to the role of trehalose in cell vitality.
Biogerontology. Roč. 17, č. 2 (2016), s. 395-408. ISSN 1389-5729. E-ISSN 1573-6768
Grant CEP: GA MŠMT LH13049
Institucionální podpora: RVO:61388971
Klíčová slova: STATIONARY-PHASE CULTURES * SACCHAROMYCES-CEREVISIAE * LIFE-SPAN
Kód oboru RIV: EE - Mikrobiologie, virologie
Impakt faktor: 3.231, rok: 2016

Cells of the budding yeast Saccharomyces cerevisiae undergo a process akin to differentiation during prolonged culture without medium replenishment. Various methods have been used to separate and determine the potential role and fate of the different cell species. We have stratified chronologically-aged yeast cultures into cells of different sizes, using centrifugal elutriation, and characterized these subpopulations physiologically. We distinguish two extreme cell types, very small (XS) and very large (L) cells. L cells display higher viability based on two separate criteria. They respire much more actively, but produce lower levels of reactive oxygen species (ROS).
Trvalý link: http://hdl.handle.net/11104/0261962