Bioassay of environmental nickel dusts in a particle feeding ciliate
The ciliated protozoan Paramecium was used to quantitate cytotoxic and genotoxic effects of nickel particles. The biological response of these eukaryotic cells to pure nickel powder and iron-nickel powder was assayed and compared to the effect of the inorganic carcinogen nickel subsulfide. Cytotoxicity was determined by the percent survival of treated cells. Genotoxicity was indicated by significant increases in the fraction of nonviable offspring (presumed index of lethal mutations) found after self-fertilization (autogamy) in parents from the nickel-treated versus neutral control groups. The cells were exposed to the dusts and the biological effects determined. Only the nickel subsulfide consistently showed a significant increase in offspring lethality.
- Research Organization:
- Univ. of Wyoming, Laramie
- OSTI ID:
- 5217332
- Journal Information:
- Environ. Mutagen.; (United States), Vol. 8:4
- Country of Publication:
- United States
- Language:
- English
Similar Records
Mutagenicity of coal fly ash: a new bioassay for mutagenic potential in a particle feeding ciliate
Paramecium tetraurelia pre-screen for hazardous chemicals: a rapid detector system for health hazards. 1977-1983 report
Related Subjects
NICKEL
BIOLOGICAL EFFECTS
NICKEL SULFIDES
PARAMECIUM
MUTATION FREQUENCY
DUSTS
IRON COMPOUNDS
LETHAL MUTATIONS
MUTAGEN SCREENING
ANIMALS
CHALCOGENIDES
CILIATA
ELEMENTS
INVERTEBRATES
METALS
MICROORGANISMS
MUTATIONS
NICKEL COMPOUNDS
PROTOZOA
SCREENING
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
560302* - Chemicals Metabolism & Toxicology- Microorganisms- (-1987)