Organ-specific COP1 control of BES1 stability adjusts plant growth patterns under shade or warmth

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F22%3A00562779" target="_blank" >RIV/61389030:_____/22:00562779 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15310/22:73616736

Výsledek na webu

<a href="https://doi.org/10.1016/j.devcel.2022.07.003" target="_blank" >https://doi.org/10.1016/j.devcel.2022.07.003</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.devcel.2022.07.003" target="_blank" >10.1016/j.devcel.2022.07.003</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Organ-specific COP1 control of BES1 stability adjusts plant growth patterns under shade or warmth

Popis výsledku v původním jazyce

Under adverse conditions such as shade or elevated temperatures, cotyledon expansion is reduced and hypocotyl growth is promoted to optimize plant architecture. The mechanisms underlying the repression of cotyledon cell expansion remain unknown. Here, we report that the nuclear abundance of the BES1 transcription factor decreased in the cotyledons and increased in the hypocotyl in Arabidopsis thaliana under shade or warmth. Brassinosteroid levels did not follow the same trend. PIF4 and COP1 increased their nuclear abundance in both organs under shade or warmth. PIF4 directly bound the BES1 promoter to enhance its activity but indirectly reduced BES1 expression. COP1 physically interacted with the BES1 protein, promoting its proteasome degradation in the cotyledons. COP1 had the opposite effect in the hypocotyl, demonstrating organ-specific regulatory networks. Our work indicates that shade or warmth reduces BES1 activity by transcriptional and post-translational regulation to inhibit cotyledon cell expansion.

Název v anglickém jazyce

Organ-specific COP1 control of BES1 stability adjusts plant growth patterns under shade or warmth

Popis výsledku anglicky

Under adverse conditions such as shade or elevated temperatures, cotyledon expansion is reduced and hypocotyl growth is promoted to optimize plant architecture. The mechanisms underlying the repression of cotyledon cell expansion remain unknown. Here, we report that the nuclear abundance of the BES1 transcription factor decreased in the cotyledons and increased in the hypocotyl in Arabidopsis thaliana under shade or warmth. Brassinosteroid levels did not follow the same trend. PIF4 and COP1 increased their nuclear abundance in both organs under shade or warmth. PIF4 directly bound the BES1 promoter to enhance its activity but indirectly reduced BES1 expression. COP1 physically interacted with the BES1 protein, promoting its proteasome degradation in the cotyledons. COP1 had the opposite effect in the hypocotyl, demonstrating organ-specific regulatory networks. Our work indicates that shade or warmth reduces BES1 activity by transcriptional and post-translational regulation to inhibit cotyledon cell expansion.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10609 - Biochemical research methods

Projekt

<a href="/cs/project/EF16_019%2F0000738" target="_blank" >EF16_019/0000738: Centrum experimentální biologie rostlin</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Developmental Cell

ISSN

1534-5807

e-ISSN

1878-1551

Svazek periodika

57

Číslo periodika v rámci svazku

16

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

17

Strana od-do

2009-2025

Kód UT WoS článku

000864616300002

EID výsledku v databázi Scopus

2-s2.0-85135987108