J 2017

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

KOVÁČIK, Jozef, Petr BABULA and Josef HEDBAVNY

Basic 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.