Detailed Information on Publication Record
2017
Comparison of vascular and non-vascular aquatic plant as indicators of cadmium toxicity
KOVÁČIK, Jozef, Petr BABULA and Josef HEDBAVNYBasic information
Original name
Comparison of vascular and non-vascular aquatic plant as indicators of cadmium toxicity
Authors
KOVÁČIK, Jozef (703 Slovakia), Petr BABULA (203 Czech Republic, guarantor, belonging to the institution) and Josef HEDBAVNY (203 Czech Republic)
Edition
Chemosphere, OXFORD, Elsevier Science, 2017, 0045-6535
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10511 Environmental sciences
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 4.427
RIV identification code
RIV/00216224:14110/17:00098525
Organization unit
Faculty of Medicine
UT WoS
000401880500010
Keywords in English
Antioxidants; Aquatic macrophyte; Heavy metals; Mosses; Oxidative stress
Tags
Tags
International impact, Reviewed
Změněno: 18/3/2018 22:57, Soňa Böhmová
Abstract
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.