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深红红螺菌中载色体膜成分的细胞周期特异性振荡。

Cell-cycle-specific oscillation in the composition of chromatophore membrane in Rhodospirillum rubrum.

作者信息

Myers C R, Collins M L

出版信息

J Bacteriol. 1986 Jun;166(3):818-23. doi: 10.1128/jb.166.3.818-823.1986.

DOI:10.1128/jb.166.3.818-823.1986
PMID:3086290
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC215199/
Abstract

Synchrony in phototrophic cultures of Rhodospirillum rubrum was induced by stationary-phase cycling or by alterations in light intensity. Intracytoplasmic chromatophore membranes were prepared by differential centrifugation. Analysis of the composition of chromatophores obtained from cells at different times indicated that the protein/bacteriochlorophyll a ratio was constant throughout the cell cycle but that the protein/phospholipid ratio oscillated. This cell-cycle-dependent fluctuation in chromatophore membrane composition was reflected in the buoyant densities of the isolated chromatophores.

摘要

通过稳定期循环或光照强度变化诱导红螺菌光合营养培养物中的同步性。通过差速离心制备胞质内的载色体膜。对不同时间获得的细胞载色体组成分析表明，在整个细胞周期中蛋白质/细菌叶绿素a的比例是恒定的，但蛋白质/磷脂的比例会发生波动。载色体膜组成中这种依赖于细胞周期的波动反映在分离出的载色体的浮力密度上。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f68/215199/9f76a71ccf38/jbacter00211-0133-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f68/215199/9f76a71ccf38/jbacter00211-0133-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f68/215199/9f76a71ccf38/jbacter00211-0133-a.jpg

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