2018
Comparative investigation of toxicity and bioaccumulation of Cd-based quantum dots and Cd salt in freshwater plant Lemna minor L.
MODLITBOVÁ, Pavlína, Karel NOVOTNÝ, Pavel POŘÍZKA, Jakub KLUS, Přemysl LUBAL et. al.Základní údaje
Originální název
Comparative investigation of toxicity and bioaccumulation of Cd-based quantum dots and Cd salt in freshwater plant Lemna minor L.
Autoři
MODLITBOVÁ, Pavlína (203 Česká republika), Karel NOVOTNÝ (203 Česká republika, garant, domácí), Pavel POŘÍZKA (203 Česká republika), Jakub KLUS (203 Česká republika), Přemysl LUBAL (203 Česká republika, domácí), Helena ZLÁMALOVÁ-GARGOŠOVÁ (203 Česká republika) a Jozef KAISER (203 Česká republika)
Vydání
Ecotoxicology and Environmental Safety, Academic Press, 2018, 0147-6513
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10406 Analytical chemistry
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.527
Kód RIV
RIV/00216224:14310/18:00102211
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000416199700042
Klíčová slova anglicky
Bioaccumulation; Cadmium; Quantum dots; Laser-Induced Breakdown Spectroscopy; Lemna minor L.; Toxicity
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 23. 4. 2024 10:57, Mgr. Michal Petr
Anotace
V originále
The purpose of this study was to determine the toxicity of two different sources of cadmium, i.e. CdCl2 and Cd-based Quantum Dots (QDs), for freshwater model plant Lemna minor L. Cadmium telluride QDs were capped with two coating ligands: glutathione (GSH) or 3-mercaptopropionic acid (MPA). Growth rate inhibition and final biomass inhibition of L. minor after 168-h exposure were monitored as toxicity endpoints. Dose-response curves for Cd toxicity and EC50(168h) values were statistically evaluated for all sources of Cd to uncover possible differences among the toxicities of tested compounds. Total Cd content and its bioaccumulation factors (BAFs) in L. minor after the exposure period were also determined to distinguish Cd bioaccumulation patterns with respect to different test compounds. Laser-Induced Breakdown Spectroscopy (LIBS) with lateral resolution of 200 mu m was employed in order to obtain two-dimensional maps of Cd spatial distribution in L. minor fronds. Our results show that GSH- and MPA-capped Cd-based QDs have similar toxicity for L. minor, but are significantly less toxic than CdCl2. However, both sources of Cd lead to similar patterns of Cd bioaccumulation and distribution in L. minor fronds. Our results are in line with previous reports that the main mediators of Cd toxicity and bioaccumulation in aquatic plants are Cd2+ ions dissolved from Cd-based QDs.
Návaznosti
LM2015043, projekt VaV |
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LQ1601, projekt VaV |
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MUNI/A/1500/2015, interní kód MU |
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