Regeneration of cilia in heavily irradiated sea urchin embryos
Cilia were removed from blastulae, gastrulae, and plutei of the sea urchins Arbacia punctulata and Lytechinus variegatus by shaking the embryos in hypertonic media. Exposure to 50 krad (and in some experiments 100 krad) of ..gamma.. radiation either before or after deciliation had no effect on the time of appearance of regenerating cilia. There were no visually obvious differences in the rate of growth of the cilia in control and irradiated embryos. The cilia commenced beating at the same time, but the initial beating sometimes seemed less vigorous following irradiation. The data support the hypothesis that radiation has no major effect on the assembly from mature basal bodies of the microtubules of cilia.
- Research Organization:
- Case Western Reserve Univ. Cleveland, OH
- OSTI ID:
- 5570658
- Journal Information:
- Radiat. Res.; (United States), Vol. 88:3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GAMMA RADIATION
BIOLOGICAL RADIATION EFFECTS
SEA URCHINS
GROWTH
REPRODUCTION
BIOLOGICAL REPAIR
CILIATA
EMBRYOS
RADIATION DOSES
REGENERATION
ANIMALS
AQUATIC ORGANISMS
BIOLOGICAL EFFECTS
BIOLOGICAL RECOVERY
DOSES
ECHINODERMS
ELECTROMAGNETIC RADIATION
INVERTEBRATES
IONIZING RADIATIONS
MICROORGANISMS
PROTOZOA
RADIATION EFFECTS
RADIATIONS
RECOVERY
REPAIR
560154* - Radiation Effects on Animals- Basic Studies- (-1987)