Pierucci O
J Bacteriol. 1978 Aug;135(2):559-74. doi: 10.1128/jb.135.2.559-574.1978.
The duplication of Escherichia coli B/r is described based on two independent sequences, the replication of the genome and the growth of the envelope. It is proposed that (i) new envelope growth zones are activated coincident with the initiation of new rounds of chromosome replication; (ii) each zone is active in envelope synthesis from the time of its inauguration to the division which follows the completion of the round of chromosome replication (that is, for C + D min); and (iii) the rate of envelope synthesis at each site is constant, independent of the growth rate. Measurements of the surface areas of two E. coli B/r substrains growing at a variety of rates and during nutritional transitions are consistent with the predictions of the model.
基于两个独立序列描述了大肠杆菌B/r的复制,即基因组的复制和包膜的生长。有人提出:(i)新的包膜生长区在新一轮染色体复制开始时被激活;(ii)每个区域从其开始形成到染色体复制轮次完成后的分裂(即,持续C + D分钟)期间都活跃于包膜合成;(iii)每个位点的包膜合成速率是恒定的,与生长速率无关。对以各种速率生长以及在营养转变期间生长的两个大肠杆菌B/r亚菌株的表面积测量结果与该模型的预测一致。