Reddy N M, Rao B S, Murthy M S
Radiat Environ Biophys. 1976 Oct 7;13(3):167-75. doi: 10.1007/BF01330761.
The kinetics of liquid-holding recovery (LHR) in diploid yeast after gamma and alpha irradiation is studied. In case of stationary phase culture the rate and extent of LHR is found to be greater for gamma-ray-induced damage than for alpha-ray-induced damage. At 10% survival level, the half-time for recovery is 5.2 h for gamma-ray damage and 12 h for alpha-ray damage. Further, while the recovery factor for alpha damage reaches saturation at 5% survival level, that for gamma damage continues to increase as survival level decreases. Oxygen is required for the recovery process during LH after gamma irradiation. The cells can recover to the same extent from both oxygen-dependent and oxygen-independent components of damage. Log phase cells containing a high per cent of budding cells, however, exhibit negative liquid holding effect after gamma irradiation.
研究了二倍体酵母在γ射线和α射线辐照后持液恢复（LHR）的动力学。在静止期培养的情况下，发现γ射线诱导损伤的LHR速率和程度大于α射线诱导损伤的情况。在10%存活水平时，γ射线损伤恢复的半衰期为5.2小时，α射线损伤为12小时。此外，虽然α损伤的恢复因子在5%存活水平时达到饱和，但γ损伤的恢复因子随着存活水平降低而继续增加。γ射线辐照后持液期间的恢复过程需要氧气。细胞可以从依赖氧气和不依赖氧气的损伤成分中恢复到相同程度。然而，含有高比例出芽细胞的对数期细胞在γ射线辐照后表现出负持液效应。
