Auxin-cytokinin interaction and variations in their metabolic products in the regulation of organogenesis in two Eucomis species

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F16%3A00465915" target="_blank" >RIV/61389030:_____/16:00465915 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15310/16:33161081

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.nbt.2016.09.001" target="_blank" >http://dx.doi.org/10.1016/j.nbt.2016.09.001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.nbt.2016.09.001" target="_blank" >10.1016/j.nbt.2016.09.001</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Auxin-cytokinin interaction and variations in their metabolic products in the regulation of organogenesis in two Eucomis species

Popis výsledku v původním jazyce

In the current study, we evaluated the effect of alpha-naphthaleneacetic acid (NAA) individually or in combination with different cytokinins (CKs) including benzyladenine (BA), meta-topolin (mT) and isopentenyladenine (iP) on organogenesis, auxin and CK content in Eucomis autumnalis subspecies autumnalis (EA) and Eucomis zambesiaca (EZ). These species were used as model plants due to their ornamental and medicinal properties. Three leaf explants were inoculated in screw-cap jars containing 30 mL Murashige and Skoog (MS) media supplemented with 5 mM NAA alone or in combination with 5 mu M CK (BA, mT or iP). After 10 weeks (EA) or 15 weeks (EZ), parameters including shoot and root growth as well as plant fresh weight were recorded. For analysis of auxin and CK content, whole plantlets were harvested, pooled and freeze-dried for the different treatments. In both species, shoot and root proliferation as well as plant biomass were generally higher when NAA was combined with the individual CK than in NAA or CK treatment. The highest concentration of indole-3-acetic acid (IAA, 619 pmol g(-1) DW) and 2-oxindole-3-acetic acid (OxIAA, 2381 pmol g(-1) DW) were observed in EA-treated with NAA alone while mT treatment (without NAA) had the most abundant indole-3-acetyl-L-aspartic acid (IAAsp, 904 and 582 pmol g(-1) DW for EA and EZ, respectively) in both species. A significant concentration of total endogenous CK accumulated in both Eucomis regenerants from mT and mT + NAA when compared to the other treatments. The majority of the detected CKs were of the aromatic CK-type, mainly free bases. The potential physiological roles of these quantified phytohormones in relation to the observed morphological responses are discussed. (C) 2016 Elsevier B.V. All rights reserved.

Název v anglickém jazyce

Auxin-cytokinin interaction and variations in their metabolic products in the regulation of organogenesis in two Eucomis species

Popis výsledku anglicky

In the current study, we evaluated the effect of alpha-naphthaleneacetic acid (NAA) individually or in combination with different cytokinins (CKs) including benzyladenine (BA), meta-topolin (mT) and isopentenyladenine (iP) on organogenesis, auxin and CK content in Eucomis autumnalis subspecies autumnalis (EA) and Eucomis zambesiaca (EZ). These species were used as model plants due to their ornamental and medicinal properties. Three leaf explants were inoculated in screw-cap jars containing 30 mL Murashige and Skoog (MS) media supplemented with 5 mM NAA alone or in combination with 5 mu M CK (BA, mT or iP). After 10 weeks (EA) or 15 weeks (EZ), parameters including shoot and root growth as well as plant fresh weight were recorded. For analysis of auxin and CK content, whole plantlets were harvested, pooled and freeze-dried for the different treatments. In both species, shoot and root proliferation as well as plant biomass were generally higher when NAA was combined with the individual CK than in NAA or CK treatment. The highest concentration of indole-3-acetic acid (IAA, 619 pmol g(-1) DW) and 2-oxindole-3-acetic acid (OxIAA, 2381 pmol g(-1) DW) were observed in EA-treated with NAA alone while mT treatment (without NAA) had the most abundant indole-3-acetyl-L-aspartic acid (IAAsp, 904 and 582 pmol g(-1) DW for EA and EZ, respectively) in both species. A significant concentration of total endogenous CK accumulated in both Eucomis regenerants from mT and mT + NAA when compared to the other treatments. The majority of the detected CKs were of the aromatic CK-type, mainly free bases. The potential physiological roles of these quantified phytohormones in relation to the observed morphological responses are discussed. (C) 2016 Elsevier B.V. All rights reserved.

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

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

New Biotechnology

ISSN

1871-6784

e-ISSN

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Svazek periodika

33

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

883-890

Kód UT WoS článku

000386782600016

EID výsledku v databázi Scopus

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