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首页> 外文期刊>Journal of bacteriology >Cell-cycle-specific fluctuation in cytoplasmic membrane composition in aerobically grown Rhodospirillum rubrum.
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Cell-cycle-specific fluctuation in cytoplasmic membrane composition in aerobically grown Rhodospirillum rubrum.

机译:有氧生长的红景天螺旋菌细胞质膜组成的细胞周期特异性波动。

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Aerobic growth with synchronous cell division was induced in Rhodospirillum rubrum by starvation methods. Cells were harvested at different points in the cell cycle. Analysis of the composition of the cell envelope prepared by differential centrifugation or density gradient-purified cytoplasmic membrane obtained from cells at different times indicated that the protein/phospholipid ratio fluctuated with the cell cycle. The protein/phospholipid ratio of cell envelope from selection-synchronized cells also fluctuated with the cell cycle. These studies indicate that the phenomenon of cell-cycle-dependent fluctuation in membrane composition is not restricted to the intracytoplasmic chromatophore membrane of phototrophic cells.
机译:通过饥饿方法诱导了红螺红螺菌中细胞同步分裂的有氧生长。在细胞周期的不同点收获细胞。通过在不同时间从细胞获得的差速离心或密度梯度纯化的细胞质膜制备的细胞包膜的组成的分析表明,蛋白质/磷脂比率随细胞周期而波动。来自选择同步细胞的细胞包膜的蛋白质/磷脂比率也随细胞周期而波动。这些研究表明,膜组成中细胞周期依赖性波动的现象不仅限于光养细胞的胞质内染色体细胞膜。

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