ULTRAVIOLET EFFECTS ON KILLING, FRUITING BODY FORMATION AND THE SPORES OF DICTYOSTELIUM DISCOIDEUM |
| |
| Authors: | Takeo Ohnishi Keiichi Nozu |
| |
| Institution: | Department of Biology, Nara Medical College. Kashihara, Nara 634, Japan |
| |
| Abstract: | Abstract— -Ultraviolet effects on amoeboid cells of three strains of Dictyosrrlium discoidruin , NC-4. γs-13 and γs-18. for killing. fruiting body formation, spore formation and viability of the spores were studied.
The strain of γs-13 was more sensitive to UV light for killing than NC-4 at 10% survival. In addition. γs-13 was the most sensitive strain among the three for fruiting body formation and spore formation. The developmental process of this organism, however, showed a large resistance to UV light when compared with the killing. The spores of γs-13 formed after UV irradiation were mostly non-viable, though those of γs-18 and NC-4 were fully viable |
| |
| Keywords: | |
|
|
