Cytokinin and Ethylene Affect Auxin Transport-Dependent Rhizogenesis in Hypocotyls of Common Ice Plant (Mesembryanthemum crystallinum L.)

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Cytokinin and Ethylene Affect Auxin Transport-Dependent Rhizogenesis in Hypocotyls of Common Ice Plant (Mesembryanthemum crystallinum L.)

Popis výsledku v původním jazyce

Hypocotyl explants of Mesembryanthemum crystallinum regenerated roots when cultured vertically with either the apical end or basal end in media containing indole-3-acetic acid (IAA). IAA alone induced roots regularly from the basal end of the explants. Cytokinin (zeatin, kinetin, BAP) added to auxin-containing medium reduced rhizogenesis from the explants maintained with BE and AE and additionally changed the IAA-induced pattern of rooting in AE-cultured explants. Kinetin did not influence the content of IAA but it strongly enhanced ethylene production. AgNO3 and AVG applied together with IAA or with IAA and kinetin strongly reduced the production of ethylene and inhibited rhizogenesis. Conversely, ACC enhanced the production of ethylene and partly mimicked the effect of cytokinin when applied with IAA alone. This confirms that in hypocotyls of ice plant cytokinin affects IAA-induced rhizogenesis through an ethylene-dependent pathway.

Název v anglickém jazyce

Cytokinin and Ethylene Affect Auxin Transport-Dependent Rhizogenesis in Hypocotyls of Common Ice Plant (Mesembryanthemum crystallinum L.)

Popis výsledku anglicky

Hypocotyl explants of Mesembryanthemum crystallinum regenerated roots when cultured vertically with either the apical end or basal end in media containing indole-3-acetic acid (IAA). IAA alone induced roots regularly from the basal end of the explants. Cytokinin (zeatin, kinetin, BAP) added to auxin-containing medium reduced rhizogenesis from the explants maintained with BE and AE and additionally changed the IAA-induced pattern of rooting in AE-cultured explants. Kinetin did not influence the content of IAA but it strongly enhanced ethylene production. AgNO3 and AVG applied together with IAA or with IAA and kinetin strongly reduced the production of ethylene and inhibited rhizogenesis. Conversely, ACC enhanced the production of ethylene and partly mimicked the effect of cytokinin when applied with IAA alone. This confirms that in hypocotyls of ice plant cytokinin affects IAA-induced rhizogenesis through an ethylene-dependent pathway.

Druh

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

CEP obor

EB - Genetika a molekulární biologie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

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

Název periodika

Journal of Plant Growth Regulation

ISSN

0721-7595

e-ISSN

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Svazek periodika

28

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

10

Strana od-do

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Kód UT WoS článku

000271791200004

EID výsledku v databázi Scopus

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