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

Result code in 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>
Alternative codes found
RIV/62157124:16370/14:43872683
Result on the web
<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>

Result language
angličtina
Original language name
Hexavalent chromium damages chamomile plants by alteration of antioxidants and its uptake is prevented by calcium
Original language description
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
Czech name
—
Czech description
—

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CE - Biochemistry
OECD FORD branch
—

Project
<a href="/en/project/EE2.3.30.0017" target="_blank" >EE2.3.30.0017: Postdocs in Biological Sciences at MENDELU</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)