The Photoperiod Stress Response in Arabidopsis thaliana Depends on Auxin Acting as an Antagonist to the Protectant Cytokinin
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F22%3A00561233" target="_blank" >RIV/61389030:_____/22:00561233 - isvavai.cz</a>
Alternative codes found
RIV/61989592:15310/22:73616455
Result on the web
<a href="https://doi.org/10.3390/ijms23062936" target="_blank" >https://doi.org/10.3390/ijms23062936</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/ijms23062936" target="_blank" >10.3390/ijms23062936</a>
Alternative languages
Result language
angličtina
Original language name
The Photoperiod Stress Response in Arabidopsis thaliana Depends on Auxin Acting as an Antagonist to the Protectant Cytokinin
Original language description
Fluctuating environmental conditions trigger adaptive responses in plants, which are regulated by phytohormones. During photoperiod stress caused by a prolongation of the light period, cytokinin (CK) has a protective function. Auxin often acts as an antagonist of CK in developmental processes and stress responses. Here, we investigated the regulation of the photoperiod stress response in Arabidopsis thaliana by auxin and its interaction with CK. Transcriptome analysis revealed an altered transcript abundance of numerous auxin metabolism and signaling genes after photoperiod stress treatment. The changes appeared earlier and were stronger in the photoperiod‐stress-sensitive CK receptor mutant arabidopsis histidine kinase 2 (ahk2),3 compared to wild‐type plants. The concentrations of indole‐3‐acetic acid (IAA), IAA‐Glc and IAA‐Asp increased in both genotypes, but the increases were more pronounced in ahk2,3. Genetic analysis revealed that the gain‐of‐func-tion YUCCA 1 (YUC1) mutant, yuc1D, displayed an increased photoperiod stress sensitivity. In con-trast, a loss of the auxin receptors TRANSPORT‐INHIBITOR‐RESISTANT 1 (TIR1), AUXIN SIG‐ NALING F‐BOX 2 (AFB2) and AFB3 in wild‐type and ahk2,3 background caused a reduced photoperiod stress response. Overall, this study revealed that auxin promotes response to photoperiod stress antagonizing the protective CK.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10608 - Biochemistry and molecular biology
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Molecular Sciences
ISSN
1422-0067
e-ISSN
1422-0067
Volume of the periodical
23
Issue of the periodical within the volume
6
Country of publishing house
CH - SWITZERLAND
Number of pages
15
Pages from-to
2936
UT code for WoS article
000775293100001
EID of the result in the Scopus database
2-s2.0-85126065448