PIFs coordinate shade avoidance by inhibiting auxin repressor ARF18 and metabolic regulator QQS
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F20%3A00115907" target="_blank" >RIV/00216224:14740/20:00115907 - isvavai.cz</a>
Result on the web
<a href="https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.16732" target="_blank" >https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.16732</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/nph.16732" target="_blank" >10.1111/nph.16732</a>
Alternative languages
Result language
angličtina
Original language name
PIFs coordinate shade avoidance by inhibiting auxin repressor ARF18 and metabolic regulator QQS
Original language description
Shade avoidance syndrome (SAS) arises in densely growing plants that compete for light. In Arabidopsis thaliana, PIF proteins link the perception of shade to stem elongation via auxin production. Here, we report that PIFs inhibit the shade-induced expression of AUXIN RESPONSE FACTOR 18 (ARF18), and ARF18 represses auxin signaling. Therefore, PIFs-mediated inhibition of ARF18 enhances auxin-dependent hypocotyl elongation in simulated shade. Furthermore, we show that both PIFs and ARF18 directly repress QuaQuine Starch (QQS), which controls the allocation of carbon and nitrogen. Shade-repressed QQS attenuates the conversion of starch to protein and thus reduced leaf area. Our results suggest that PIFs-dependent gene regulation coordinates multiple SAS responses, including altered stem growth via ARF18, as well as altered leaf growth and metabolism via QQS.
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
10605 - Developmental biology
Result continuities
Project
<a href="/en/project/EF16_026%2F0008446" target="_blank" >EF16_026/0008446: Signal integration and epigenetic reprograming for plant productivity</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
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
New Phytologist
ISSN
0028-646X
e-ISSN
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Volume of the periodical
228
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
13
Pages from-to
609-621
UT code for WoS article
000548533900001
EID of the result in the Scopus database
2-s2.0-85088124142