2007
Effects of seven organic pollutants on soil nematode Caenorhabditis elegans
SOCHOVÁ, Ivana, Jakub HOFMAN a Ivan HOLOUBEKZákladní údaje
Originální název
Effects of seven organic pollutants on soil nematode Caenorhabditis elegans
Název česky
Vliv 7 organických polutantů na půdní roupici Caenorhabditis elegans
Autoři
SOCHOVÁ, Ivana (203 Česká republika), Jakub HOFMAN (203 Česká republika, garant) a Ivan HOLOUBEK (203 Česká republika)
Vydání
Environment International, 2007, 0160-4120
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10511 Environmental sciences
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 2.797
Kód RIV
RIV/00216224:14310/07:00020847
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000248273700011
Klíčová slova anglicky
soil; nematodes; Caenorhabditis elegans; organic pollutants
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 24. 2. 2010 20:40, prof. RNDr. Jakub Hofman, Ph.D.
Anotace
V originále
Caenorhabditis elegans is a free-living soil nematode that is commonly used as a model for toxicity tests. The aim of this study was to investigate the toxicity of seven organic pollutants: four azaarenes (quinoline, acridine, phenazine, and 1,10-phenanthroline), short-chain chlorinated paraffins, and two organochlorinated pesticides (toxaphene and hexachlorobenzene). The exposure to all chemicals was carried out in three test media (soil, agar, and aquatic medium), and adult mortality was evaluated after 24 and 48 hours. Toxaphene was the most toxic substance with LC50 (48h) of 379 mg/kg in the soil and 0.2 mg/L in the aquatic medium. Quinoline was the most toxic chemical in agar test with LC50 (48h) of 10 mg/L. HCB showed a very low toxicity in all tests, maybe due to its very low water solubility. Longer than 24h test duration was found necessary for getting more correct data on toxicity. In comparison with other studies, C. elegans was less sensitive than other soil invertebrates. Different response might be attributed to different exposure routes and shorter test duration. Equilibrium partitioning theory was used to calculate Koc from results of soil and aquatic tests but this approach was found not working. Our results suggest that the tests with nematode C. elegans should be included to the battery of tests for risk assessment of POPs in soil.
Návaznosti
| GP525/04/P159, projekt VaV |
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| MSM0021622412, záměr |
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