Cytotoxicity of synthetic fuel products on Tetrahymena pyriformis. II. Shale oil retort water
- Univ. of Tennessee
Shale oil retort water is obtained by centrifuging the oil/water emulsion produced by oil shale retorting. The ciliate Tetrahymena pyriformis was exposed to retort water; 2,1, and 0.5% initially increased motility; longer exposures decreased motility. Three, 4, and 5% all decreased motility. Cell lysis was directly related to concentration; after 24 h, population densities were 0, 10, and 25% of controls for 2, 1, and 0.5% retort water, respectively. Oxygen consumption paralleled the motility pattern: at lower concentrations it increased initially but decreased with extended exposures while at higher concentrations it decreased rapidly. The most striking cytologic alteration of cells exposed to the toxicant occurred in the membranes; alterations of mucocysts and glycogen content were also observed, but mitochondrial changes were not. Population growth was affected at much lower concentrations than the other test indices. The growth of test populations reached a plateau at values inversely related to concentration: concentrations < 0.4% had no effect on growth rate.
- OSTI ID:
- 6041246
- Journal Information:
- J. Protozool.; (United States), Journal Name: J. Protozool.; (United States) Vol. 25:4; ISSN JPROA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
041000 -- Oil Shales & Tar Sands-- Environmental Aspects
550300 -- Cytology
550700 -- Microbiology
560302* -- Chemicals Metabolism & Toxicology-- Microorganisms-- (-1987)
59 BASIC BIOLOGICAL SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
BIOLOGICAL EFFECTS
BIOLOGY
CARBOHYDRATES
CELL CONSTITUENTS
CELL MEMBRANES
CHEMICAL REACTORS
CYTOLOGY
DOSE-RESPONSE RELATIONSHIPS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GLYCOGEN
GROWTH
HYDROGEN COMPOUNDS
INVERTEBRATES
LIQUID WASTES
LYSIS
MEMBRANES
MICROORGANISMS
MINERAL OILS
MITOCHONDRIA
OILS
ORGANIC COMPOUNDS
ORGANOIDS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
POLLUTION
POLYSACCHARIDES
PROTOZOA
RESPIRATION
RETORTS
SACCHARIDES
SHALE OIL
SYNTHETIC FUELS
SYNTHETIC PETROLEUM
TETRAHYMENA
TOXICITY
WASTE WATER
WASTES
WATER
WATER POLLUTION