KOVACIK, Jozef, Giuseppe MICALIZZI, Slawomir DRESLER, Petr BABULA, Juraj HLADKY, Alexander CHEMODANOV and Luigi MONDELLO. Metabolic responses of Ulva compressa to single and combined heavy metals. Chemosphere. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD, 2018, vol. 213, DEC 2018, p. 384-394. ISSN 0045-6535. Available from: https://dx.doi.org/10.1016/j.chemosphere.2018.08.141.
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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
Original language English
Type of outcome Article in a journal
Field of Study 10511 Environmental sciences
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 5.108
RIV identification code RIV/00216224:14110/18:00105327
Organization unit Faculty of Medicine
Doi http://dx.doi.org/10.1016/j.chemosphere.2018.08.141
UT WoS 000448493700042
Keywords in English Antioxidants; Fluorescence microscopy; Gas chromatography; Heavy metals
Tags 14110515, rivok
Tags International impact, Reviewed
Changed by Changed by: Soňa Böhmová, učo 232884. Changed: 10/2/2019 15:57.
Abstract
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.
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