Light Quality and Intensity Modulate Cold Acclimation in Arabidopsis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F21%3A43919642" target="_blank" >RIV/62156489:43210/21:43919642 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.3390/ijms22052736" target="_blank" >https://doi.org/10.3390/ijms22052736</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ijms22052736" target="_blank" >10.3390/ijms22052736</a>

Result language

angličtina

Original language name

Light Quality and Intensity Modulate Cold Acclimation in Arabidopsis

Original language description

Plant survival in temperate zones requires efficient cold acclimation, which is strongly affected by light and temperature signal crosstalk, which converge in modulation of hormonal re-sponses. Cold under low light conditions affected Arabidopsis responses predominantly in apices, possibly because energy supplies were too limited for requirements of these meristematic tissues, despite a relatively high steady-state quantum yield. Comparing cold responses at optimal light intensity and low light, we found activation of similar defence mechanisms-apart from CBF1-3 and CRF3-4 pathways, also transient stimulation of cytokinin type-A response regulators, ac-companied by fast transient increase of trans-zeatin in roots. Upregulated expression of components of strigolactone (and karrikin) signalling pathway indicated involvement of these phyto-hormones in cold responses. Impaired response of phyA, phyB, cry1 and cry2 mutants reflected participation of these photoreceptors in acquiring freezing tolerance (especially cryptochrome CRY1 at optimal light intensity and phytochrome PHYA at low light). Efficient cold acclimation at optimal light was associated with upregulation of trans-zeatin in leaves and roots, while at low light, cytokinin (except cis-zeatin) content remained diminished. Cold stresses induced elevation of jasmonic acid and salicylic acid (in roots). Low light at optimal conditions resulted in strong sup-pression of cytokinins, jasmonic and salicylic acid.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10608 - Biochemistry and molecular biology

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

International Journal of Molecular Sciences

ISSN

1661-6596

e-ISSN

—

Volume of the periodical

22

Issue of the periodical within the volume

5

Country of publishing house

CH - SWITZERLAND

Number of pages

21

Pages from-to

2736

UT code for WoS article

000628302200001

EID of the result in the Scopus database

2-s2.0-85102133831