Aethionema arabicum: A novel model plant to study the light control of seed germination

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F19%3A00509248" target="_blank" >RIV/61389030:_____/19:00509248 - isvavai.cz</a>

Alternative codes found

RIV/61989592:15310/19:73598535

Result on the web

<a href="http://dx.doi.org/10.1093/jxb/erz146" target="_blank" >http://dx.doi.org/10.1093/jxb/erz146</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/jxb/erz146" target="_blank" >10.1093/jxb/erz146</a>

Result language

angličtina

Original language name

Aethionema arabicum: A novel model plant to study the light control of seed germination

Original language description

The timing of seed germination is crucial for seed plants and is coordinated by internal and external cues, reflecting adaptations to different habitats. Physiological and molecular studies with lettuce and Arabidopsis thaliana have documented a strict requirement for light to initiate germination and identified many receptors, signaling cascades, and hormonal control elements. In contrast, seed germination in several other plants is inhibited by light, but the molecular basis of this alternative response is unknown. We describe Aethionema arabicum (Brassicaceae) as a suitable model plant to investigate the mechanism of germination inhibition by light, as this species has accessions with natural variation between light-sensitive and light-neutral responses. Inhibition of germination occurs in red, blue, or far-red light and increases with light intensity and duration. Gibberellins and abscisic acid are involved in the control of germination, as in Arabidopsis, but transcriptome comparisons of light- and dark-exposed A. arabicum seeds revealed that, upon light exposure, the expression of genes for key regulators undergo converse changes, resulting in antipodal hormone regulation. These findings illustrate that similar modular components of a pathway in light-inhibited, light-neutral, and light-requiring germination among the Brassicaceae have been assembled in the course of evolution to produce divergent pathways, likely as adaptive traits.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10611 - Plant sciences, botany

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2019

Confidentiality

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

Name of the periodical

Journal of Experimental Botany

ISSN

0022-0957

e-ISSN

—

Volume of the periodical

70

Issue of the periodical within the volume

12

Country of publishing house

GB - UNITED KINGDOM

Number of pages

16

Pages from-to

3313-3328

UT code for WoS article

000484414200024

EID of the result in the Scopus database

2-s2.0-85069236589