Metabolic responses of Ulva compressa to single and combined heavy metals
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14110%2F18%3A00105327" target="_blank" >RIV/00216224:14110/18:00105327 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.chemosphere.2018.08.141" target="_blank" >http://dx.doi.org/10.1016/j.chemosphere.2018.08.141</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.chemosphere.2018.08.141" target="_blank" >10.1016/j.chemosphere.2018.08.141</a>
Alternative languages
Result language
angličtina
Original language name
Metabolic responses of Ulva compressa to single and combined heavy metals
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10511 - Environmental sciences (social aspects to be 5.7)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Chemosphere
ISSN
0045-6535
e-ISSN
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Volume of the periodical
213
Issue of the periodical within the volume
DEC 2018
Country of publishing house
GB - UNITED KINGDOM
Number of pages
11
Pages from-to
384-394
UT code for WoS article
000448493700042
EID of the result in the Scopus database
2-s2.0-85054765099