Změny v hladině cytokininoxidasy/dehydrogenasy u obilovin během senescence

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F05%3A00001820" target="_blank" >RIV/61989592:15310/05:00001820 - 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

Changes of cytokinin oxidase/dehydrogenase levels during senescence in cereals

Popis výsledku v původním jazyce

Senescence is the sequence of biochemical and physiological events comprising the final phase in development, which culminates in the cellular breakdown and death. Senescence initiation is programmed new gene expression caused naturally or induced by space competition, light, environmental stress and nutrition factors. It was proven that endogenously enhanced cytokinin contents in leaves leads to the delayed senescence. In cereals, the velocity of senescence of the flag leaf determines subsequent powerand quantity of assimilate transport to the ripening seeds. Hence, a triggered manipulation of cytokinin content via engineered regulation of CKX gene expression becomes a promising tool to alter yield attributes in cereals. High levels of cytokinins were found in chloroplasts extracted from green leaves. There is no evidence for any CKX isoforms to target to chloroplast up to present time. However, an enormous increase in the CKX level was detected in early stages of leaf senescence in

Název v anglickém jazyce

Changes of cytokinin oxidase/dehydrogenase levels during senescence in cereals

Popis výsledku anglicky

Senescence is the sequence of biochemical and physiological events comprising the final phase in development, which culminates in the cellular breakdown and death. Senescence initiation is programmed new gene expression caused naturally or induced by space competition, light, environmental stress and nutrition factors. It was proven that endogenously enhanced cytokinin contents in leaves leads to the delayed senescence. In cereals, the velocity of senescence of the flag leaf determines subsequent powerand quantity of assimilate transport to the ripening seeds. Hence, a triggered manipulation of cytokinin content via engineered regulation of CKX gene expression becomes a promising tool to alter yield attributes in cereals. High levels of cytokinins were found in chloroplasts extracted from green leaves. There is no evidence for any CKX isoforms to target to chloroplast up to present time. However, an enormous increase in the CKX level was detected in early stages of leaf senescence in

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

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2005

Kód důvěrnosti údajů

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

Název periodika

Biologia Plantarum

ISSN

0006-3134

e-ISSN

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Svazek periodika

49

Číslo periodika v rámci svazku

S1

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

1

Strana od-do

"S5"

Kód UT WoS článku

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EID výsledku v databázi Scopus

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