J 2019

Dandelion is more tolerant to cadmium than to nickel excess

KOVACIK, Jozef, Marek BUJDOS, Paulina KETZER, Petr BABULA, Viera PETERKOVA et. al.

Basic information

Original name

Dandelion is more tolerant to cadmium than to nickel excess

Authors

KOVACIK, Jozef (703 Slovakia, guarantor), Marek BUJDOS (703 Slovakia), Paulina KETZER (703 Slovakia), Petr BABULA (203 Czech Republic, belonging to the institution), Viera PETERKOVA (703 Slovakia) and Liselotte KRENN (40 Austria)

Edition

Chemosphere, OXFORD, PERGAMON-ELSEVIER SCIENCE LTD, 2019, 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

References:

Impact factor

Impact factor: 5.778

RIV identification code

RIV/00216224:14110/19:00112845

Organization unit

Faculty of Medicine

UT WoS

000466249600099

Keywords in English

Antioxidants; Heavy metals; Oxidative stress; Reactive oxygen species; Secondary metabolites

Tags

Tags

International impact, Reviewed
Změněno: 31/1/2020 09:18, Mgr. Tereza Miškechová

Abstract

V originále

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.