Hexavalent chromium damages chamomile plants by alteration of antioxidants and its uptake is prevented by calcium

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F14%3A00218794" target="_blank" >RIV/62156489:43210/14:00218794 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/62157124:16370/14:43872683

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jhazmat.2014.03.040" target="_blank" >http://dx.doi.org/10.1016/j.jhazmat.2014.03.040</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jhazmat.2014.03.040" target="_blank" >10.1016/j.jhazmat.2014.03.040</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Hexavalent chromium damages chamomile plants by alteration of antioxidants and its uptake is prevented by calcium

Popis výsledku v původním jazyce

Toxicity of low (3 uM) and high (60 and 120 uM) concentrations of hexavalent chromium/Cr(VI) inchamomile plants was studied. Fluorescence staining confirmed reduction of Cr(VI) to Cr(III). Cr wasmainly accumulated in the roots with translocation factor <0.007. Notwithstanding this, both shootsand roots revealed increase in oxidative stress and depletion of glutathione, total thiols, ascorbic acidand activities of glutathione reductase and partially ascorbate peroxidase mainly at 120 uM Cr. Thoughsome protective mechanisms were detected (elevation of nitric oxide, enhancement of GPX activity andincrease in phenols and lignin), this was not sufficient to counteract the oxidative damage. Consequently,soluble proteins, tissue water content and biomass production were considerably depleted. Surprisingincrease in some mineral nutrients in roots (Ca, Fe, Zn and Cu) was also detected. Subsequent experi-ment confirmed that exogenous calcium suppressed oxidative symptoms and Cr uptake but growth

Název v anglickém jazyce

Hexavalent chromium damages chamomile plants by alteration of antioxidants and its uptake is prevented by calcium

Popis výsledku anglicky

Toxicity of low (3 uM) and high (60 and 120 uM) concentrations of hexavalent chromium/Cr(VI) inchamomile plants was studied. Fluorescence staining confirmed reduction of Cr(VI) to Cr(III). Cr wasmainly accumulated in the roots with translocation factor <0.007. Notwithstanding this, both shootsand roots revealed increase in oxidative stress and depletion of glutathione, total thiols, ascorbic acidand activities of glutathione reductase and partially ascorbate peroxidase mainly at 120 uM Cr. Thoughsome protective mechanisms were detected (elevation of nitric oxide, enhancement of GPX activity andincrease in phenols and lignin), this was not sufficient to counteract the oxidative damage. Consequently,soluble proteins, tissue water content and biomass production were considerably depleted. Surprisingincrease in some mineral nutrients in roots (Ca, Fe, Zn and Cu) was also detected. Subsequent experi-ment confirmed that exogenous calcium suppressed oxidative symptoms and Cr uptake but growth

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 Hazardous Materials

ISSN

0304-3894

e-ISSN

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Svazek periodika

273

Číslo periodika v rámci svazku

30 May 2014

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

110-117

Kód UT WoS článku

336821400014

EID výsledku v databázi Scopus

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