Characterization of new maize genes putatively involved in CK metabolism and their expression during osmotic stress in relation with cytokinin levels

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F09%3A00010298" target="_blank" >RIV/61989592:15310/09:00010298 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Characterization of new maize genes putatively involved in CK metabolism and their expression during osmotic stress in relation with cytokinin levels

Popis výsledku v původním jazyce

In this study, we for the first time described expression profiles of the entire gene families of CK biosynthetic and degradation genes in maize during development and stress responses. Transcript abundance of particular genes is discussed in relation tothe levels of different CK metabolites. cis-Zeatin and its derivatives were found to be the most abundant CKs in young maize seedlings. We hypothesize that this zeatin isomer could play a crucial role in the abiotic stress response and that it originated independently to de novo biosynthesis in stressed tissues most probably by elevated specific RNA degradation. By enhancing their CK levels plants could perhaps settle to a reduction of growth rates maintained by abscisic acid accumulation in stressed tissues. A second role for cytokinin receptors in sensing turgor response is hypothesized besides their documented function in CK signaling.

Název v anglickém jazyce

Characterization of new maize genes putatively involved in CK metabolism and their expression during osmotic stress in relation with cytokinin levels

Popis výsledku anglicky

In this study, we for the first time described expression profiles of the entire gene families of CK biosynthetic and degradation genes in maize during development and stress responses. Transcript abundance of particular genes is discussed in relation tothe levels of different CK metabolites. cis-Zeatin and its derivatives were found to be the most abundant CKs in young maize seedlings. We hypothesize that this zeatin isomer could play a crucial role in the abiotic stress response and that it originated independently to de novo biosynthesis in stressed tissues most probably by elevated specific RNA degradation. By enhancing their CK levels plants could perhaps settle to a reduction of growth rates maintained by abscisic acid accumulation in stressed tissues. A second role for cytokinin receptors in sensing turgor response is hypothesized besides their documented function in CK signaling.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CE - Biochemie

OECD FORD obor

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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)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2009

Kód důvěrnosti údajů

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

Název periodika

Plant Physiology

ISSN

0032-0889

e-ISSN

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Svazek periodika

151

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

15

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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