Comparative study of the sensitivity of spores and amoebae of Dictyostelium discoideum to ultraviolet light

Journal Article · Mon Sep 01 00:00:00 EDT 1980 · Radiat. Res.; (United States)

DOI:https://doi.org/10.2307/3575348· OSTI ID:6817815

Hashimoto, Y; Wada, M

We report the sensitivity change of plaque formation to ultraviolet light (uv) irradiation in several stages of the cellular slime mold from spore to stationary phase, under the special condition which we have obtained - a plating efficiency of 100%. For NC-4 (haploid) and H-1 (diploid), uv sensitivity of cells just after germination was almost equal to that of spores; then the sensitivity decreased with development, reached a minimum just before the first cell division, and remained at that level during logarithmic growth. As to the difference between NC-4 and H-1, NC-4 was more resistant than H-1 at low doses, and H-1 was more resistant than NC-4 at high doses for both spores and amoebae. We also report a pipetting effect which assured reproducible data for amoebae.

• Research Organization: Rikkyo Univ., Tokyo, Japan
• OSTI ID: 6817815
• Journal Information: Radiat. Res.; (United States), Vol. 83:3
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
FUNGI
RADIOSENSITIVITY
CELL CYCLE
DOSE-RESPONSE RELATIONSHIPS
EXPERIMENTAL DATA
MITOSIS
PLAQUE FORMATION
SPORES
SURVIVAL CURVES
ULTRAVIOLET RADIATION
CELL DIVISION
DATA
ELECTROMAGNETIC RADIATION
INFORMATION
NUMERICAL DATA
PLANTS
RADIATIONS
560131* - Radiation Effects on Microorganisms- Basic Studies- (-1987)