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@article{1397079,
author = {Kováčik, Jozef and Babula, Petr and Hedbavny, Josef},
article_location = {OXFORD},
article_number = {AUG 2017},
doi = {http://dx.doi.org/10.1016/j.chemosphere.2017.04.002},
keywords = {Antioxidants; Aquatic macrophyte; Heavy metals; Mosses; Oxidative stress},
language = {eng},
issn = {0045-6535},
journal = {Chemosphere},
title = {Comparison of vascular and non-vascular aquatic plant as indicators of cadmium toxicity},
volume = {180},
year = {2017}
}
TY - JOUR
ID - 1397079
AU - Kováčik, Jozef - Babula, Petr - Hedbavny, Josef
PY - 2017
TI - Comparison of vascular and non-vascular aquatic plant as indicators of cadmium toxicity
JF - Chemosphere
VL - 180
IS - AUG 2017
SP - 86-92
EP - 86-92
PB - Elsevier Science
SN - 00456535
KW - Antioxidants
KW - Aquatic macrophyte
KW - Heavy metals
KW - Mosses
KW - Oxidative stress
N2 - Antioxidative and microscopic responses in non-vascular (moss Taxiphyllum barbieri) and vascular (Ceratophyllum demersum) aquatic plants exposed to short-term (24 h) cadmium (Cd) excess (10 and 100 mu M) were compared. Ceratophyllum considerably accumulated Cd but less pronounced symptoms of oxidative stress were detected by confocal microscopy (at the level of general ROS, hydrogen peroxide, hydroxyl radical/peroxynitrite and superoxide) that could be related to enhanced activities of anti oxidative enzymes (SOD, CAT, APX). Amounts of ascorbic acid and non-protein thiols were higher in Ceratophyllum than in Taxiphyllum and increased with increasing Cd dose, which may help to better regulate circulation of free metal ions in Ceratophyllum mainly. Besides, it was observed that citric acid increased in Ceratophyllum while malic acid in Taxiphyllum in response to Cd which may also contribute to Cd chelation. Our data indicate that Ceratophyllum is a suitable species for Cd bioaccumulation while Taxiphyllum is more sensitive to Cd excess and thus suitable as indicator species. It was also proven that sensitive microscopic techniques allow the visualization of Cd-induced changes in aquatic plants even after short-term exposure when no morphological signs of damage are visible. (C) 2017 Elsevier Ltd. All rights reserved.
ER -
KOVÁČIK, Jozef, Petr BABULA a Josef HEDBAVNY. Comparison of vascular and non-vascular aquatic plant as indicators of cadmium toxicity. Online. \textit{Chemosphere}. OXFORD: Elsevier Science, 2017, roč.~180, AUG 2017, s.~86-92. ISSN~0045-6535. Dostupné z: https://dx.doi.org/10.1016/j.chemosphere.2017.04.002. [citováno 2024-04-24]
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