Use of ABA Treatment for the Activation of Drought Protective Mechanisms in Barley Under Non-stress Conditions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F15%3A00447317" target="_blank" >RIV/60077344:_____/15:00447317 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Use of ABA Treatment for the Activation of Drought Protective Mechanisms in Barley Under Non-stress Conditions

Popis výsledku v původním jazyce

This study evaluated the sensitivity of three different barley genotypes (Jersey, Malz and Tadmor) to stress simulated by the application of exogenous abscisic acid at the early stage of plant development. The increase of ABA concentration in the leaveswas detected in all genotypes; the lowest amount was found in the most tolerant Tadmor. Increased level of the instantaneous WUE and lower discrimination of 13C in ABA treated plants were found in all genotypes, in drought-tolerant Tadmor even in controlvariant. The genotype-dependent differences were observed also in the expression levels of Dhn4 gene in the leaves. The highest and earliest expression level of this gene was observed again in Tadmor. Tadmor represented type of drought tolerance manifested by high sensitivity to ABA followed by fast induction of Dhn4 gene expression, Jersey and Malz have slower response to exogenous ABA in WUE and expression of Dhn4 changes. The reaction is genotype dependent.

Název v anglickém jazyce

Use of ABA Treatment for the Activation of Drought Protective Mechanisms in Barley Under Non-stress Conditions

Popis výsledku anglicky

This study evaluated the sensitivity of three different barley genotypes (Jersey, Malz and Tadmor) to stress simulated by the application of exogenous abscisic acid at the early stage of plant development. The increase of ABA concentration in the leaveswas detected in all genotypes; the lowest amount was found in the most tolerant Tadmor. Increased level of the instantaneous WUE and lower discrimination of 13C in ABA treated plants were found in all genotypes, in drought-tolerant Tadmor even in controlvariant. The genotype-dependent differences were observed also in the expression levels of Dhn4 gene in the leaves. The highest and earliest expression level of this gene was observed again in Tadmor. Tadmor represented type of drought tolerance manifested by high sensitivity to ABA followed by fast induction of Dhn4 gene expression, Jersey and Malz have slower response to exogenous ABA in WUE and expression of Dhn4 changes. The reaction is genotype dependent.

Druh

O - Ostatní výsledky

CEP obor

ED - Fyziologie

OECD FORD obor

—

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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