VLIV SPOLUPŮSOBENÍ SVĚTELNÉ INTENZITY A ZVÝŠENÉ HLADINY CYTOKININŮ NA FOTOMORFOGENEZI SEMENÁČKŮ ARABIDOPSIS THALIANA

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F07%3A00117764" target="_blank" >RIV/62156489:43210/07:00117764 - 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

The effect of interaction between light quantity and increased level of cytokinins on arabidopsis thaliana seedlings photomorphogenesis

Popis výsledku v původním jazyce

The extension of the hypocotyl is regulated by a network of interacting factors as light and plant hormones. Light is one of the most important environmental factors for plants, as it provides the source of energy and photomorphogenetic signal. Cytokinins are the plant growth regulators that among others inhibit hypocotyl elongation in darkness but have no obvious effect on hypocotyl length in the light. We have been investigated the influence of light quantity (fluence) on hypocotyl elongation of transgenic A. thaliana seedlings (pOp-ipt-GUS::LhG4) with increased level of endogenous cytokinins. Upon low fluence 16 umol photons m-2 s-1 hypocotyls of ipt overexpressing plantlets were significantly longer compared to control - non-overexpressing plantlets. It is known, that ethylene overlaps the elongation effect of cytokinins on hypocotyl in the light. Despite it we have been observed this phenomenon even if inhibitors of ethylene synthesis respectively perception were not supplemented

Název v anglickém jazyce

The effect of interaction between light quantity and increased level of cytokinins on arabidopsis thaliana seedlings photomorphogenesis

Popis výsledku anglicky

The extension of the hypocotyl is regulated by a network of interacting factors as light and plant hormones. Light is one of the most important environmental factors for plants, as it provides the source of energy and photomorphogenetic signal. Cytokinins are the plant growth regulators that among others inhibit hypocotyl elongation in darkness but have no obvious effect on hypocotyl length in the light. We have been investigated the influence of light quantity (fluence) on hypocotyl elongation of transgenic A. thaliana seedlings (pOp-ipt-GUS::LhG4) with increased level of endogenous cytokinins. Upon low fluence 16 umol photons m-2 s-1 hypocotyls of ipt overexpressing plantlets were significantly longer compared to control - non-overexpressing plantlets. It is known, that ethylene overlaps the elongation effect of cytokinins on hypocotyl in the light. Despite it we have been observed this phenomenon even if inhibitors of ethylene synthesis respectively perception were not supplemented

Druh

D - Stať ve sborníku

CEP obor

EB - Genetika a molekulární biologie

OECD FORD obor

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Projekt

<a href="/cs/project/LC06034" target="_blank" >LC06034: Regulace morfogeneze rostlinných buněk a orgánů</a><br>

Návaznosti

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

Rok uplatnění

2007

Kód důvěrnosti údajů

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

Název statě ve sborníku

MendelNet'07 Agro

ISBN

978-80-7375-119-7

ISSN

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e-ISSN

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Počet stran výsledku

1

Strana od-do

111-111

Název nakladatele

MZLU v Brně

Místo vydání

MZLU v Brně

Místo konání akce

Brno

Datum konání akce

1. 1. 2007

Typ akce podle státní příslušnosti

CST - Celostátní akce

Kód UT WoS článku

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