2016
Metallothionein modulation in relation to cadmium bioaccumulation and age-dependent sensitivity of Chironomus riparius larvae
TOUŠOVÁ, Zuzana, Jan KUTA, David HYNEK, Vojtěch ADAM, René KIZEK et. al.Základní údaje
Originální název
Metallothionein modulation in relation to cadmium bioaccumulation and age-dependent sensitivity of Chironomus riparius larvae
Autoři
TOUŠOVÁ, Zuzana (203 Česká republika, domácí), Jan KUTA (203 Česká republika, domácí), David HYNEK (203 Česká republika), Vojtěch ADAM (203 Česká republika), René KIZEK (203 Česká republika), Luděk BLÁHA (203 Česká republika, domácí) a Klára HILSCHEROVÁ (203 Česká republika, garant, domácí)
Vydání
Environmental Science and Pollution Research, Landsberg, Germany, Ecomed, 2016, 0944-1344
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30304 Public and environmental health
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.741
Kód RIV
RIV/00216224:14310/16:00093481
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000377021500018
Klíčová slova anglicky
Chironomus; Artificial sediment; Cadmium; Bioaccumulation; Metallothionein
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 2. 3. 2017 12:23, Mgr. Michaela Hylsová, Ph.D.
Anotace
V originále
The goal of this study was to contribute to understanding of the mechanisms behind sensitivity differences between early and late instar larvae of Chironomus riparius and to address the influence of the differences in standard testing approaches on the toxicity evaluation. A 10-day contact sediment toxicity test was carried out to assess sensitivity to cadmium exposure in relation to different age and laboratory culture line origin of test organisms. Chironomid larvae of early (OECD 218 method) and late instar (US-EPA600/R-99/064 method) differed substantially in sensitivity of traditional endpoints (OECD: LOEC 50 and 10 mu g Cd/g dry weight (dw); US-EPA: LOEC > 1000 and 100 mu g Cd/g dw for survival and growth, respectively). Bioaccumulated cadmium and metallothioneins (MTs) concentrations were analyzed to investigate the role of MTs in reduced sensitivity to cadmium in late instar larvae. Metallothioneins were induced after treatment to greater Cd concentrations, but their levels in relation to cadmium body burdens did not fully explain low sensitivity of late instars to cadmium, which indicates some other effective way of detoxification in late instars. This study brings new information related to the role of MTs in age-dependent toxicant sensitivity and discusses the implications of divergence in data generated by chironomid sediment toxicity tests by standardized methods using different instars.
Návaznosti
LM2011028, projekt VaV |
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LO1214, projekt VaV |
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