[热疗与电离辐射联合作用后酵母细胞的恢复]

[Recovery of yeast cells following the combined action of hyperthermia and ionizing radiation].

作者信息

Glazunov A V, Boreĭko A V

出版信息

Radiobiologiia. 1985 Jan-Feb;25(1):37-42.

Abstract

Consecutive action of elevated temperature (50 degrees C) and gamma-irradiation on yeast cells Saccharomyces cerevisiae was studied. It was shown that yeast cells can recover from lethal thermal and radiation lesions after the combined action of the two factors. The efficiency of recovery does not depend upon the sequence of treatments. Heating (50 degrees C) before or after gamma-irradiation increases the radiation response of yeast when plating the cells on a nutrient agar containing 1.5 M KCl. The synergistic effect decreases with yeast cells kept in water at 28 degrees C before plating. The influence of one factor on the effectiveness of recovery from damages induced by the other was estimated.

摘要

研究了高温（50摄氏度）和γ射线对酿酒酵母细胞的连续作用。结果表明，在这两种因素的联合作用后，酵母细胞能够从致死性热损伤和辐射损伤中恢复。恢复效率不取决于处理顺序。在γ射线照射之前或之后加热（50摄氏度），当将细胞接种在含有1.5 M KCl的营养琼脂上时，会增加酵母的辐射反应。在接种前将酵母细胞置于28摄氏度的水中，协同效应会降低。评估了一种因素对另一种因素诱导损伤恢复效果的影响。