Long days induce adaptive secondary dormancy in the seeds of the Mediterranean plant Aethionema arabicum

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F24%3A00600501" target="_blank" >RIV/61389030:_____/24:00600501 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15310/24:73628362

Výsledek na webu

<a href="https://doi.org/10.1016/j.cub.2024.05.043" target="_blank" >https://doi.org/10.1016/j.cub.2024.05.043</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cub.2024.05.043" target="_blank" >10.1016/j.cub.2024.05.043</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Long days induce adaptive secondary dormancy in the seeds of the Mediterranean plant Aethionema arabicum

Popis výsledku v původním jazyce

Secondary dormancy is an adaptive trait that increases reproductive success by aligning seed germination with permissive conditions for seedling establishment. Aethionema arabicum is an annual plant and member of the Brassicaceae that grows in environments characterized by hot and dry summers. Aethionema arabicum seeds may germinate in early spring when seedling establishment is permissible. We demonstrate that long-day light regimes induce secondary dormancy in the seeds of Aethionema arabicum (CYP accession), repressing germination in summer when seedling establishment is riskier. Characterization of mutants screened for defective secondary dormancy demonstrated that RGL2 mediates repression of genes involved in gibberellin (GA) signaling. Exposure to high temperature alleviates secondary dormancy, restoring germination potential. These data are consistent with the hypothesis that long-day-induced secondary dormancy and its alleviation by high temperatures may be part of an adaptive response limiting germination to conditions permissive for seedling establishment in spring and autumn.

Název v anglickém jazyce

Long days induce adaptive secondary dormancy in the seeds of the Mediterranean plant Aethionema arabicum

Popis výsledku anglicky

Secondary dormancy is an adaptive trait that increases reproductive success by aligning seed germination with permissive conditions for seedling establishment. Aethionema arabicum is an annual plant and member of the Brassicaceae that grows in environments characterized by hot and dry summers. Aethionema arabicum seeds may germinate in early spring when seedling establishment is permissible. We demonstrate that long-day light regimes induce secondary dormancy in the seeds of Aethionema arabicum (CYP accession), repressing germination in summer when seedling establishment is riskier. Characterization of mutants screened for defective secondary dormancy demonstrated that RGL2 mediates repression of genes involved in gibberellin (GA) signaling. Exposure to high temperature alleviates secondary dormancy, restoring germination potential. These data are consistent with the hypothesis that long-day-induced secondary dormancy and its alleviation by high temperatures may be part of an adaptive response limiting germination to conditions permissive for seedling establishment in spring and autumn.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10608 - Biochemistry and molecular biology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Current Biology

ISSN

0960-9822

e-ISSN

1879-0445

Svazek periodika

34

Číslo periodika v rámci svazku

13

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

17

Strana od-do

"2893"-"2906.e3"

Kód UT WoS článku

001267693500001

EID výsledku v databázi Scopus

2-s2.0-85196983361