Root-derived trans-zeatin cytokinin protects Arabidopsis plants against photoperiod stress
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F20%3A00533734" target="_blank" >RIV/61389030:_____/20:00533734 - isvavai.cz</a>
Alternative codes found
RIV/61989592:15310/20:73604575
Result on the web
<a href="http://doi.org/10.1111/pce.13860" target="_blank" >http://doi.org/10.1111/pce.13860</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/pce.13860" target="_blank" >10.1111/pce.13860</a>
Alternative languages
Result language
angličtina
Original language name
Root-derived trans-zeatin cytokinin protects Arabidopsis plants against photoperiod stress
Original language description
Recently, a novel type of abiotic stress caused by a prolongation of the light period—coined photoperiod stress—has been described in Arabidopsis. During the night after the prolongation of the light period, stress and cell death marker genes are induced. The next day, strongly stressed plants display a reduced photosynthetic efficiency and leaf cells eventually enter programmed cell death. The phytohormone cytokinin (CK) acts as a negative regulator of this photoperiod stress syndrome. In this study, we show that Arabidopsis wild-type plants increase the CK concentration in response to photoperiod stress. Analysis of cytokinin synthesis and transport mutants revealed that root-derived trans-zeatin (tZ)-type CKs protect against photoperiod stress. The CK signalling proteins ARABIDOPSIS HISTIDINE PHOSPHOTRANSFER PROTEIN 2 (AHP2), AHP3 and AHP5 and transcription factors ARABIDOPSIS RESPONSE REGULATOR 2 (ARR2), ARR10 and ARR12 are required for the protective activity of CK. Analysis of higher order B-type arr mutants suggested that a complex regulatory circuit exists in which the loss of ARR10 or ARR12 can rescue the arr2 phenotype. Together the results revealed the role of root-derived CK acting in the shoot through the two-component signalling system to protect from the negative consequences of strong photoperiod stress.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10609 - Biochemical research methods
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
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Plant Cell and Environment
ISSN
0140-7791
e-ISSN
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Volume of the periodical
43
Issue of the periodical within the volume
11
Country of publishing house
GB - UNITED KINGDOM
Number of pages
13
Pages from-to
2637-2649
UT code for WoS article
000564566100001
EID of the result in the Scopus database
2-s2.0-85090057032