Effects of autogamy in Paramecium tetraurelia on catalase activity and on radiosensitivity to natural ionizing radiations

Journal Article · Fri Feb 01 00:00:00 EST 1980 · J. Protozool.; (United States)

DOI:https://doi.org/10.1111/j.1550-7408.1980.tb04243.x· OSTI ID:6759733

Croute, F; Dupouy, D; Charley, J P; Soleilhavoup, J P; Planel, H

Catalase activity of Paramecium tetraurelia decreased during autogamy and recovered to normal 5 days later. Autogamy also caused changes in the ciliate's sensitivity sensitivity to natural ionizing radiations - the decrease in cell growth rate previously described in shielded cultures did not occur when autogamous cells were used. Maximum effect of shielding was observed in 11-day-old postautogamous cells. The role of the catalase in the mechanism of natural irradiation effect is discussed.

• Research Organization: Faculte de Medecine de Purpan, Toulouse, France
• OSTI ID: 6759733
• Journal Information: J. Protozool.; (United States), Vol. 27:1
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
59 BASIC BIOLOGICAL SCIENCES
ENZYME ACTIVITY
BIOLOGICAL EFFECTS
RADIOSENSITIVITY
REPRODUCTION
SIDE EFFECTS
BACKGROUND RADIATION
CATALASE
PARAMECIUM
ANIMALS
CARBOXYLIC ACIDS
ENZYMES
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
INVERTEBRATES
MICROORGANISMS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDOREDUCTASES
PEROXIDASES
PORPHYRINS
PROTOZOA
RADIATIONS
560154* - Radiation Effects on Animals- Basic Studies- (-1987)
550700 - Microbiology
550200 - Biochemistry