Hormonal dynamics during salt stress responses of salt-sensitive Arabidopsis thaliana and salt-tolerant Thellungiella salsuginea

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F17%3A00481222" target="_blank" >RIV/61389030:_____/17:00481222 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/17:10366492

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.plantsci.2017.07.020" target="_blank" >http://dx.doi.org/10.1016/j.plantsci.2017.07.020</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.plantsci.2017.07.020" target="_blank" >10.1016/j.plantsci.2017.07.020</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Hormonal dynamics during salt stress responses of salt-sensitive Arabidopsis thaliana and salt-tolerant Thellungiella salsuginea

Popis výsledku v původním jazyce

Salt stress responses in salt-sensitive Arabidopsis thaliana (2–150 mM NaCl) and the closely related salt-tolerant Thellungiella salsuginea (Eutrema halophila, 150–350 mM NaCl) were compared to identify hormonal and transcriptomic changes associated with enhanced stress tolerance. Phytohormone levels, expression of selected genes, membrane stability, and Na + and K + concentrations were measured in shoot apices, leaves, and roots. Thellungiella exhibited higher salt stress tolerance associated with elevated basal levels of abscisic acid and jasmonic acid, and lower levels of active cytokinins (excluding cis-zeatin) in shoot apices. Analysis of the dynamics of the early salt stress response (15 min to 24 h) revealed that the halophyte response was faster and stronger. Very mild stress, in our hydropony arrangement 2–25 mM NaCl, affected the transcription of genes involved in cytokinin metabolism (AtIPTs, AtCKXs). Mild stress induced in Arabidopsis (50 mM) stress responses only in shoot apices, while in Thellungiella (150 mM) across the whole plant. Arabidopsis exhibited in hydropony evidence of severe stress above 75 mM NaCl and died in 150 mM, whereas the halophyte only became severely stressed above 225 mM. The responses of individual phytohormones (cytokinins, auxin, abscisic acid, jasmonic acid, salicylic acid and their metabolites) to salinity are discussed.

Název v anglickém jazyce

Hormonal dynamics during salt stress responses of salt-sensitive Arabidopsis thaliana and salt-tolerant Thellungiella salsuginea

Popis výsledku anglicky

Salt stress responses in salt-sensitive Arabidopsis thaliana (2–150 mM NaCl) and the closely related salt-tolerant Thellungiella salsuginea (Eutrema halophila, 150–350 mM NaCl) were compared to identify hormonal and transcriptomic changes associated with enhanced stress tolerance. Phytohormone levels, expression of selected genes, membrane stability, and Na + and K + concentrations were measured in shoot apices, leaves, and roots. Thellungiella exhibited higher salt stress tolerance associated with elevated basal levels of abscisic acid and jasmonic acid, and lower levels of active cytokinins (excluding cis-zeatin) in shoot apices. Analysis of the dynamics of the early salt stress response (15 min to 24 h) revealed that the halophyte response was faster and stronger. Very mild stress, in our hydropony arrangement 2–25 mM NaCl, affected the transcription of genes involved in cytokinin metabolism (AtIPTs, AtCKXs). Mild stress induced in Arabidopsis (50 mM) stress responses only in shoot apices, while in Thellungiella (150 mM) across the whole plant. Arabidopsis exhibited in hydropony evidence of severe stress above 75 mM NaCl and died in 150 mM, whereas the halophyte only became severely stressed above 225 mM. The responses of individual phytohormones (cytokinins, auxin, abscisic acid, jasmonic acid, salicylic acid and their metabolites) to salinity are discussed.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Plant Science

ISSN

0168-9452

e-ISSN

—

Svazek periodika

264

Číslo periodika v rámci svazku

NOV

Stát vydavatele periodika

IE - Irsko

Počet stran výsledku

11

Strana od-do

188-198

Kód UT WoS článku

000413614600019

EID výsledku v databázi Scopus

2-s2.0-85030087149