J 2017

Comparison of vascular and non-vascular aquatic plant as indicators of cadmium toxicity

KOVÁČIK, Jozef, Petr BABULA a Josef HEDBAVNY

Základní údaje

Originální název

Comparison of vascular and non-vascular aquatic plant as indicators of cadmium toxicity

Autoři

KOVÁČIK, Jozef (703 Slovensko), Petr BABULA (203 Česká republika, garant, domácí) a Josef HEDBAVNY (203 Česká republika)

Vydání

Chemosphere, OXFORD, Elsevier Science, 2017, 0045-6535

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10511 Environmental sciences

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 4.427

Kód RIV

RIV/00216224:14110/17:00098525

Organizační jednotka

Lékařská fakulta

UT WoS

000401880500010

Klíčová slova anglicky

Antioxidants; Aquatic macrophyte; Heavy metals; Mosses; Oxidative stress

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 18. 3. 2018 22:57, Soňa Böhmová

Anotace

V originále

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.