Variation of antioxidants and secondary metabolites in nitrogen-deficient barley plants

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F14%3A00218670" target="_blank" >RIV/62156489:43210/14:00218670 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/62157124:16370/14:43872742

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0176161713003362" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0176161713003362</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jplph.2013.08.004" target="_blank" >10.1016/j.jplph.2013.08.004</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Variation of antioxidants and secondary metabolites in nitrogen-deficient barley plants

Popis výsledku v původním jazyce

Barley (Hortleum vulgare cv. Bojos) plants cultured in low nitrogen (N) containing Hoagland solution (20 mg/I) were exposed to N deficiency ( N) over 15 days. Plants revealed relatively high tolerance to total N deficit because shoot length was not altered and dry biomass was depleted by ca. 30% while root length increased by ca. 50% and dry biomass remained unaffected. Soluble proteins and free amino acids decreased more pronouncedly in the roots. Antioxidants (glutathione and ascorbic acid) decreasedin the shoots but increased or were not affected in the roots. Ascorbate peroxidase and glutathione reductase activities were depleted in shoots and/or roots while guaiacol peroxidase activity was stimulated in the shoots. In accordance, fluorescence signal of reactive oxygen species (ROS) and nitric oxide was elevated in shoots but no extensive changes were observed in roots if +N and N treatments are compared. At the level of phenolic metabolites, slight increase in soluble phenols and

Název v anglickém jazyce

Variation of antioxidants and secondary metabolites in nitrogen-deficient barley plants

Popis výsledku anglicky

Barley (Hortleum vulgare cv. Bojos) plants cultured in low nitrogen (N) containing Hoagland solution (20 mg/I) were exposed to N deficiency ( N) over 15 days. Plants revealed relatively high tolerance to total N deficit because shoot length was not altered and dry biomass was depleted by ca. 30% while root length increased by ca. 50% and dry biomass remained unaffected. Soluble proteins and free amino acids decreased more pronouncedly in the roots. Antioxidants (glutathione and ascorbic acid) decreasedin the shoots but increased or were not affected in the roots. Ascorbate peroxidase and glutathione reductase activities were depleted in shoots and/or roots while guaiacol peroxidase activity was stimulated in the shoots. In accordance, fluorescence signal of reactive oxygen species (ROS) and nitric oxide was elevated in shoots but no extensive changes were observed in roots if +N and N treatments are compared. At the level of phenolic metabolites, slight increase in soluble phenols and

Druh

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

CEP obor

CE - Biochemie

OECD FORD obor

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Projekt

<a href="/cs/project/EE2.3.30.0017" target="_blank" >EE2.3.30.0017: Postdoktorandi v oborech biologických věd na MENDELU</a><br>

Návaznosti

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

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Journal of Plant Physiology

ISSN

0176-1617

e-ISSN

—

Svazek periodika

171

Číslo periodika v rámci svazku

3-4

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

9

Strana od-do

260-268

Kód UT WoS článku

332052200009

EID výsledku v databázi Scopus

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