Integral Study of Paramecium caudatum Acute and Chronic Toxicity, Sites of Entry and Distribution, Bioconcentration and Body Burdens of Five Metals.

Autor: Hernández-Flores S; Autonomous University of Aguascalientes, Aguascalientes, Mexico., Santos-Medrano GE; Autonomous University of Aguascalientes, Aguascalientes, Mexico., Rico-Martínez R; Autonomous University of Aguascalientes, Aguascalientes, Mexico. rrico@correo.uaa.mx.
Jazyk: angličtina
Zdroj: Bulletin of environmental contamination and toxicology [Bull Environ Contam Toxicol] 2023 Jul 26; Vol. 111 (2), pp. 19. Date of Electronic Publication: 2023 Jul 26.
DOI: 10.1007/s00128-023-03768-8
Abstrakt: An integral analysis of the acute and chronic toxicity, bioaccumulation, sites of entry, and distribution of four trace metals: copper, iron, lead, and nickel, and the non-trace metal mercury were performed in the ciliate Paramecium caudatum. Mercury was the fastest metal accumulated, and the most toxic. The sensitivity of Paramecium caudatum to the five metals tested (Cu, Fe, Hg, Ni, and Zn) falls in the range of other ciliate species. We observed similarities between the toxicity of the five metals to the ciliate P. caudatum with the rotifer Euchlanis dilatata: (a) Mercury was the most toxic metal in terms of acute and body burdens. (b) Acute values were very similar in both species, Hg as the most toxic and Fe as the less toxic, (c) the vacuole/ingestion chronic tests were more sensitive than growth inhibition chronic tests. These analyses would ideally help generate safer guidelines for protecting aquatic biota.
(© 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
Databáze: MEDLINE
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