多头绒泡菌同步核分裂周期中转运RNA的合成
Synthesis of transfer RNA during the synchronous nuclear division cycle in Physarum polycephalum.
作者信息
Fink K, Turnock G
出版信息
Eur J Biochem. 1977 Oct 17;80(1):93-6. doi: 10.1111/j.1432-1033.1977.tb11860.x.
Abstract
- The synthesis of tRNA during the synchronous nuclear division cycle in plasmodia of Physarum polycephalum has been investigated using an isotope dilution procedure and compared to the pattern of synthesis of rRNA. 2. The synthesis of both tRNA stops during mitosis. As the genes for the two types of RNA are not linked, this finding suggests that cessation of synthesis during nuclear division is a common characteristic of all types of transcription, supporting earlier work using pulse labelling and autoradiography to investigate the same problem.
摘要
- 利用同位素稀释法研究了多头绒泡菌原质团同步核分裂周期中tRNA的合成，并与rRNA的合成模式进行了比较。2. 两种tRNA的合成在有丝分裂期间均停止。由于这两种RNA的基因不连锁，这一发现表明核分裂期间合成的停止是所有类型转录的共同特征，支持了早期使用脉冲标记和放射自显影来研究同一问题的工作。
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