Minority potassium-uptake system Trk2 has a crucial role in yeast survival of glucose-induced cell death
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985823%3A_____%2F21%3A00545535" target="_blank" >RIV/67985823:_____/21:00545535 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1099/mic.0.001065" target="_blank" >https://doi.org/10.1099/mic.0.001065</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1099/mic.0.001065" target="_blank" >10.1099/mic.0.001065</a>
Alternative languages
Result language
angličtina
Original language name
Minority potassium-uptake system Trk2 has a crucial role in yeast survival of glucose-induced cell death
Original language description
The existence of programmed cell death in Saccharomyces cerevisiae has been reported for many years. Glucose induces the death of S. cerevisiae in the absence of additional nutrients within a few hours, and the absence of active potassium uptake makes cells highly sensitive to this process. S. cerevisiae cells possess two transporters, Trk1 and Trk2, which ensure a high intracellular concentration of potassium, necessary for many physiological processes. Trk1 is the major system responsible for potassium acquisition in growing and dividing cells. The contribution of Trk2 to potassium uptake in growing cells is almost negligible, but Trk2 becomes crucial for stationary cells for their survival of some stresses, e.g. anhydrobiosis. As a new finding, we show that both Trk systems contribute to the relative thermotolerance of S. cerevisiae BY4741. Our results also demonstrate that Trk2 is much more important for the cell survival of glucose-induced cell death than Trk1, and that stationary cells deficient in active potassium uptake lose their ATP stocks more rapidly than cells with functional Trk systems. This is probably due to the upregulated activity of plasma-membrane Pma1 H+-ATPase, and consequently, it is the reason why these cells die earlier than cells with functional active potassium uptake.
Czech name
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Czech description
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Classification
Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
10606 - Microbiology
Result continuities
Project
<a href="/en/project/GA20-04420S" target="_blank" >GA20-04420S: Trk1 potassium importers - key transport systems for yeast cell fitness and multiple-stress tolerance</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Microbiology
ISSN
1350-0872
e-ISSN
1465-2080
Volume of the periodical
167
Issue of the periodical within the volume
6
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
001065
UT code for WoS article
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EID of the result in the Scopus database
2-s2.0-85111784795