Detailed Information on Publication Record
2018
Metabolic responses of Ulva compressa to single and combined heavy metals
KOVACIK, Jozef, Giuseppe MICALIZZI, Slawomir DRESLER, Petr BABULA, Juraj HLADKY et. al.Basic information
Original name
Metabolic responses of Ulva compressa to single and combined heavy metals
Authors
KOVACIK, Jozef (703 Slovakia, guarantor), Giuseppe MICALIZZI (380 Italy), Slawomir DRESLER (616 Poland), Petr BABULA (203 Czech Republic, belonging to the institution), Juraj HLADKY (703 Slovakia), Alexander CHEMODANOV (376 Israel) and Luigi MONDELLO (380 Italy)
Edition
Chemosphere, OXFORD, PERGAMON-ELSEVIER SCIENCE LTD, 2018, 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: 5.108
RIV identification code
RIV/00216224:14110/18:00105327
Organization unit
Faculty of Medicine
UT WoS
000448493700042
Keywords in English
Antioxidants; Fluorescence microscopy; Gas chromatography; Heavy metals
Tags
International impact, Reviewed
Změněno: 10/2/2019 15:57, Soňa Böhmová
Abstract
V originále
Accumulation of metals and metabolic responses were studied for two Cd and Cu concentrations (1 and 10 mu M) either alone or as a combination in marine macroalga after 7 days of exposure. Cd accumulated more at a low dose (115 mu g of Cclig DW) but Cu at a high dose (378 mu g of Cu/g DW); Cu suppressed Cd accumulation (by 57%). Na and Zn levels were unaffected, but higher metal doses depleted K and Ca levels. Higher metal concentrations strongly stimulated reactive oxygen species and depleted nitric oxide (NO) formation, but differences between the action of Cd and Cu were not extensive. Higher metal doses increased cell wall thickness with a potential relation to NO signal that is visible mainly in the apoplast in those treatments. A higher Cu dose depleted proline, ascorbic acid, and phenol levels more than Cd, whereas Cd elevated nonprotein thiols and ascorbic acid in combined treatments. An eventual role of malic or citric acid in metal chelation was not evident: malic acid level decreased in all treatments. The total content of fatty acids reached 16.7 mg/g DW in control with the quantitative order of PUFAs > SFAs > MUFAs; palmitic, vaccenic, linoleic, and alpha-linolenic acids were the major compounds. Cu was more toxic for fatty acids than Cd (even at 1 mu M); mainly, PUFA levels strongly decreased (from 43% of total acids in control to 28.9% and 5.4% at 1 and 10 mu M Cu treatment, respectively). Results are precisely and critically discussed in relation to limited literature focused on macroalgae, and a comparison with microalgae is also provided. (C) 2018 Elsevier Ltd. All rights reserved.