VARIATION OF IRRADIATION EFFECTS ON MICROORGANISMS IN RELATION TO PHYSICAL CHANGES OF THEIR ENVIRONMENT
VARIATION OF IRRADIATION EFFECTS ON MICROORGANISMS IN RELATION TO PHYSICAL CHANGES OF THEIR ENVIRONMENT
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微生物的辐照效应随环境物理变化的变化
DOI：
10.1128/jb.63.5.688-690.1952
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发表时间：
1952
影响因子：
3.2
通讯作者：
W. Moos
中科院分区：
文献类型：
--
作者：
W. Moos
独立观察。从这些实验中可以看出，每毫米波紫外线的延迟期明显延长了500尔格，但增加这一剂量只会使生长在固体培养基上的细胞略有增加，而在营养肉汤中生长的细胞则不会增加。这些观察到的最显著的特征是，由于受照射的细胞暴露在重新激活的光中，延迟期显著缩短。复活处理似乎对以前没有暴露在紫外线下的培养物没有影响。在对数生长期内，所用处理均不影响世代时间。在所有情况下，这一时间都保持在19到20分钟。
independent observations. From these experiments it appears that the lag period is appreciably lengthened by as little as 500 ergs per MM2 of ultraviolet, but that doubling this dose results in only a slight further increase for cells grown on solid medium and no increase for cells grown in nutrient broth. The most striking feature of these observations is the marked reduction in the lag period as the result of exposure of irradiated cells to reactivating light. The reactivation treatment appears to have no effect on cultures not previously exposed to ultraviolet light. None of the treatments used affected the generation time during the logarithmic growth period. In all cases this remained at 19 to 20 minutes.