PIFs coordinate shade avoidance by inhibiting auxin repressor ARF18 and metabolic regulator QQS

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

PIFs coordinate shade avoidance by inhibiting auxin repressor ARF18 and metabolic regulator QQS

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

PIFs coordinate shade avoidance by inhibiting auxin repressor ARF18 and metabolic regulator QQS

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10605 - Developmental biology

Projekt

<a href="/cs/project/EF16_026%2F0008446" target="_blank" >EF16_026/0008446: Integrace signálu a epigenetické reprogramování pro produktivitu rostlin</a><br>

Návaznosti

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

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

New Phytologist

ISSN

0028-646X

e-ISSN

—

Svazek periodika

228

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

609-621

Kód UT WoS článku

000548533900001

EID výsledku v databázi Scopus

2-s2.0-85088124142