在受控氧浓度下对敏感型和抗性型大肠杆菌菌株进行X射线辐照。

X IRRADIATION OF A SENSITIVE AND A RESISTANT STRAIN OF ESCHERICHIA COLI UNDER CONTROLLED OXYGEN CONCENTRATIONS.

作者信息

VANSOESTBERGEN A A

出版信息

J Bacteriol. 1965 Apr;89(4):1032-4. doi: 10.1128/JB.89.4.1032-1034.1965.

DOI:10.1128/JB.89.4.1032-1034.1965

PMID:14276091

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC277591/

Abstract

van Soestbergen, A. A. (Brookhaven National Laboratory, Upton, N.Y.). X irradiation of a sensitive and a resistant strain of Escherichia coli under controlled oxygen concentrations. J. Bacteriol. 89:1032-1034. 1965.-Radiosensitive and radioresistant strains of Escherichia coli were given an X-ray dose of 4,544 rad at various controlled O(2) concentrations, and the results were subjected to probit analysis. A varkappa(2) test gave no evidence of heterogeneity of departure from fitted parallel probit lines obtained after plotting the probit of the surviving fractions of each of the two strains on the logarithm of the O(2) concentration. Under the conditions of the experiment, the ratio of the oxygen concentrations at which equal fractions of populations of E. coli B/r and E. coli B-s were killed by X irradiation was estimated to be about 4.4.

摘要

范·索斯特贝根，A. A.（布鲁克海文国家实验室，纽约州厄普顿）。在受控氧气浓度下对敏感型和抗性型大肠杆菌菌株进行X射线照射。《细菌学杂志》89:1032 - 1034。1965年。在各种受控的O₂浓度下，对放射敏感型和放射抗性型大肠杆菌菌株给予4544拉德的X射线剂量，并对结果进行概率分析。在将两种菌株各自存活分数的概率绘制在O₂浓度的对数上后，卡方检验没有证据表明偏离拟合平行概率线存在异质性。在实验条件下，估计通过X射线照射使等量的大肠杆菌B/r和大肠杆菌B - s群体被杀死时的氧气浓度比约为4.4。