Metabolic responses of Ulva compressa to single and combined heavy metals

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Metabolic responses of Ulva compressa to single and combined heavy metals

Popis výsledku v původním jazyce

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 &gt; SFAs &gt; 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.

Název v anglickém jazyce

Metabolic responses of Ulva compressa to single and combined heavy metals

Popis výsledku anglicky

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 &gt; SFAs &gt; 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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Chemosphere

ISSN

0045-6535

e-ISSN

—

Svazek periodika

213

Číslo periodika v rámci svazku

DEC 2018

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

384-394

Kód UT WoS článku

000448493700042

EID výsledku v databázi Scopus

2-s2.0-85054765099