剂量率对线虫类小杆线虫X连锁致死突变频率的影响。
Effect of dose-rate on the frequency of X-linked lethal mutation in the nematode Panagrellus redivivus.
作者信息
Ager D, Samoiloff M R, Petkau A
出版信息
Mutat Res. 1984 Jun-Jul;140(2-3):107-10. doi: 10.1016/0165-7992(84)90052-6.
PMID:6749168
Abstract
A total X-ray dose of 50 Gy was applied to the nematode Panagrellus redivivus using dose-rates ranging from 0.23 Gy/min to 10.49 Gy/min, and the frequency of lethal X-chromosomes was determined. This frequency ranged from approximately 1.6% at the lower dose-rate to 4.3% at the highest dose-rate, indicating a dose-rate dependency of mutation frequency in the spermatogonia and oogonia of this organism.
摘要
使用0.23 Gy/分钟至10.49 Gy/分钟的剂量率，对小杆线虫（Panagrellus redivivus）施加总计50 Gy的X射线剂量，并测定致死性X染色体的频率。该频率范围从较低剂量率下的约1.6%到最高剂量率下的4.3%，表明该生物体精原细胞和卵原细胞中突变频率存在剂量率依赖性。
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