Influence on cell proliferation of background radiation or exposure to very low, chronic gamma radiation. [Paramecium tetraurelia; Synechococcus lividus]

Journal Article · Fri May 01 00:00:00 EDT 1987 · Health Phys.; (United States)

DOI:https://doi.org/10.1097/00004032-198705000-00007· OSTI ID:6466995

Planel, H; Soleilhavoup, J P; Tixador, R; Richoilley, G; Conter, A; Croute, F; Caratero, C; Gaubin, Y

Investigations carried out on the protozoan Paramecium tetraurelia and the cyanobacteria Synechococcus lividus, which were shielded against background radiation or exposed to very low doses of gamma radiation, demonstrated that radiation can stimulate the proliferation of these two single-cell organisms. Radiation hormesis depends on internal factors (age of starting cells) and external factors (lighting conditions). The stimulatory effect occurred only in a limited range of doses and disappeared for dose rates higher than 50 mGy/y.

• Research Organization: Laboratoire de Biologie Medicale, Toulouse, France
• OSTI ID: 6466995
• Journal Information: Health Phys.; (United States), Vol. 5
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
CYANOBACTERIA
BIOLOGICAL RADIATION EFFECTS
CELL PROLIFERATION
PARAMECIUM
BACKGROUND RADIATION
CELL DIVISION
DOSE-RESPONSE RELATIONSHIPS
GAMMA RADIATION
LOW DOSE IRRADIATION
STIMULATION
ANIMALS
BIOLOGICAL EFFECTS
CILIATA
ELECTROMAGNETIC RADIATION
INVERTEBRATES
IONIZING RADIATIONS
IRRADIATION
MICROORGANISMS
PROTOZOA
RADIATION EFFECTS
RADIATIONS
560130* - Radiation Effects on Microorganisms