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@article{1615176,
author = {Kovacik, Jozef and Bujdos, Marek and Ketzer, Paulina and Babula, Petr and Peterkova, Viera and Krenn, Liselotte},
article_location = {OXFORD},
article_number = {JUN 2019},
doi = {http://dx.doi.org/10.1016/j.chemosphere.2019.02.181},
keywords = {Antioxidants; Heavy metals; Oxidative stress; Reactive oxygen species; Secondary metabolites},
language = {eng},
issn = {0045-6535},
journal = {Chemosphere},
title = {Dandelion is more tolerant to cadmium than to nickel excess},
url = {http://dx.doi.org/10.1016/j.chemosphere.2019.02.181},
volume = {224},
year = {2019}
}
TY - JOUR
ID - 1615176
AU - Kovacik, Jozef - Bujdos, Marek - Ketzer, Paulina - Babula, Petr - Peterkova, Viera - Krenn, Liselotte
PY - 2019
TI - Dandelion is more tolerant to cadmium than to nickel excess
JF - Chemosphere
VL - 224
IS - JUN 2019
SP - 884-891
EP - 884-891
PB - PERGAMON-ELSEVIER SCIENCE LTD
SN - 00456535
KW - Antioxidants
KW - Heavy metals
KW - Oxidative stress
KW - Reactive oxygen species
KW - Secondary metabolites
UR - http://dx.doi.org/10.1016/j.chemosphere.2019.02.181
L2 - http://dx.doi.org/10.1016/j.chemosphere.2019.02.181
N2 - Comparative accumulation of cadmium (Cd) and nickel (Ni) and the consequences for the metabolism of common weed dandelion (triploid ones of Taraxacum sect. Taraxacum) were studied here for the first time. Cd accumulated more in both shoots and roots (489 and 2486 mu g/g DW) than Ni (165 and 858 mu g/g DW) after 14 days of exposure and only root Ni content did not increase between 7 and 14 days of exposure. Surprisingly, though Ni was less accumulated than Cd, it had more negative impact on basic physiology (root dry biomass, shoot water content and chlorophyll amount). Ni also evoked more extensive depression of mineral nutrients (K, Ca, Mg, and Mn) in the shoots than Cd while root potassium content was elevated by both metals. Ni suppressed accumulation of total thiols but anatomical changes and ROS formation (detected by fluorescence microscopy of total ROS and lipid peroxidation) were induced more by Cd. Total soluble phenols, major (caftaric and cichoric) and minor (chlorogenic and caffeic) phenolic acids were elevated by both metals and rather increased with prolonged exposure in the shoots (14 versus 7 days). On the contrary, typically depletion of these metabolites was found in the roots after prolonged exposure to Ni, but not to Cd. Data showed distinct toxicity of Cd and Ni in dandelion. More expressive tolerance of dandelion to Cd than to Ni indicates its potential use for the remediation of Cd-contaminated environment. (C) 2019 Elsevier Ltd. All rights reserved.
ER -
KOVACIK, Jozef, Marek BUJDOS, Paulina KETZER, Petr BABULA, Viera PETERKOVA a Liselotte KRENN. Dandelion is more tolerant to cadmium than to nickel excess. \textit{Chemosphere}. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD, 2019, roč.~224, JUN 2019, s.~884-891. ISSN~0045-6535. Dostupné z: https://dx.doi.org/10.1016/j.chemosphere.2019.02.181.
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