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巨大芽孢杆菌细胞包膜含量对生长速率的依赖性

DEPENDENCE OF THE CONTENT OF CELL ENVELOPES ON THE GROWTH RATE OF BACILLUS MEGATERIUM.

作者信息

SUD I J, SCHAECHTER M

出版信息

J Bacteriol. 1964 Dec;88(6):1612-7. doi: 10.1128/jb.88.6.1612-1617.1964.

Abstract

Sud, I. J. (Tufts University School of Medicine, Boston, Mass.), and M. Schaechter. Dependence of the content of cell envelopes on the growth rate of Bacillus megaterium. J. Bacteriol. 88:1612-1617. 1964.-The amount of cell-wall and cell-membrane material was measured in Bacillus megaterium growing at different steady-state rates. On a dry weight basis, the content of wall hexosamine and diaminopimelic acid, and of membrane lipid phosphorus was found to be inversely proportional to the rate of growth. During the transition from slow to fast growth, the synthesis of envelope materials showed a lag of 20 to 30 min. Possible implications of these findings are discussed in terms of regulatory mechanism.

摘要

苏德,I. J.(马萨诸塞州波士顿塔夫茨大学医学院),以及M. 沙赫特。巨大芽孢杆菌细胞包膜成分对生长速率的依赖性。《细菌学杂志》88:1612 - 1617。1964年。——测定了在不同稳态生长速率下生长的巨大芽孢杆菌中细胞壁和细胞膜物质的量。以干重计,发现细胞壁己糖胺、二氨基庚二酸以及膜脂磷的含量与生长速率成反比。在从缓慢生长向快速生长的转变过程中,包膜物质的合成显示出20至30分钟的滞后。从调节机制方面讨论了这些发现可能具有的意义。

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