OXYGEN REQUIREMENT FOR RECOVERY IN SPLIT-DOSE EXPERIMENTS WITH OEDOGONIUM

被引:29
作者
HOWARD, A
机构
[1] Paterson Laboratories, Christie Hospital and Holt Radium Institute
来源
INTERNATIONAL JOURNAL OF RADIATION BIOLOGY AND RELATED STUDIES IN PHYSICS CHEMISTRY AND MEDICINE | 1968年 / 14卷 / 04期
关键词
D O I
10.1080/09553006814551191
中图分类号
Q6 [生物物理学];
学科分类号
071011 ;
摘要
Split-dose experiments with vegetative stationary-phase cells of Oedogonium cardiacum, tested for loss of clonogenic ability, showed that part of the x-ray damage was repaired in a 2-hour interval. The ability of the cells to repair was independent of the presence of oxygen during irradiation. When less than 0·01 μM/l. oxygen was present in the water surrounding the cells during the recovery interval, little or no recovery occurred. When 0·12 μM/l. oxygen was present, recovery was as complete as in air-saturated water. These results, and others quoted in the literature, support the hypothesis that recovery is a metabolic process which requires an energy source in the cell. © 1968 Informa UK Ltd All rights reserved: reproduction in whole or part not permitted.
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页码:341 / &
相关论文
共 29 条
[11]   RESPIRATION OF ASCITES TUMOUR CELLS AT LOW OXYGEN CONCENTRATIONS [J].
FROESE, G .
BIOCHIMICA ET BIOPHYSICA ACTA, 1962, 57 (03) :509-&
[12]   EXTREME HYPOXIA ITS EFFECT ON SURVIVAL OF MAMMALIAN CELLS IRRADIATED AT HIGH AND LOW DOSE-RATES [J].
HALL, EJ ;
BEDFORD, JS ;
OLIVER, R .
BRITISH JOURNAL OF RADIOLOGY, 1966, 39 (460) :302-&
[13]   OXYGEN EFFECT FOR ACUTE AND PROTRACTED RADIATION EXPOSURES MEASURED WITH SEEDLINGS OF VICIA FABA [J].
HALL, EJ ;
CAVANAGH, J .
BRITISH JOURNAL OF RADIOLOGY, 1967, 40 (470) :128-&
[14]  
HALL EJ, IN PRESS
[15]  
HORNSEY S, 1967, RADIAT RES, P587
[16]   VARIATION IN RADIOSENSITIVITY DURING THE CELL-CYCLE OF OEDOGONIUM-CARDIACUM [J].
HORSLEY, RJ ;
FUCIKOVSKY, LA .
INTERNATIONAL JOURNAL OF RADIATION BIOLOGY AND RELATED STUDIES IN PHYSICS CHEMISTRY AND MEDICINE, 1963, 6 (05) :417-429
[17]  
KEMBER NF, 1968, INT J RADIAT BIOL RE, V13, P387
[18]   RECOVERY FROM X-RAY INJURY + EFFECT OF OXYGEN [J].
LITTBRAND, B ;
REVESZ, L .
NATURE, 1964, 203 (494) :889-&
[19]   EFFECT OF A SECOND EXPOSURE TO X-RAYS ON POST-IRRADIATION RECOVERY [J].
LITTBRAND, B ;
REVESZ, L .
NATURE, 1967, 214 (5090) :841-+
[20]  
MITCHELL JS, 1956, PROGRESS RADIOBIO ED, P217