首页> 美国卫生研究院文献>Journal of Bacteriology >Possible role of a choline-containing teichoic acid in the maintenance of normal cell shape and physiology in Streptococcus oralis.
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Possible role of a choline-containing teichoic acid in the maintenance of normal cell shape and physiology in Streptococcus oralis.

机译:含胆碱的胆酸在维持链球菌正常细胞形态和生理中的可能作用。

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摘要

Streptococcus oralis ATCC 35037 took up radioactively labeled choline from growth medium. Most of the choline (80 to 90%) was incorporated into the cell wall teichoic acid, and about 10% was localized in the plasma membrane. While cells grew in choline-free medium, they did so at slow rates and produced cell walls with greatly reduced amounts of phosphate and no detectable choline. Cells grown in choline-free medium had grossly abnormal shape and size. Both biochemical and morphological abnormalities were reversible by addition of choline to the medium.
机译:口腔链球菌ATCC 35037从生长培养基中吸收了放射性标记的胆碱。大部分胆碱(80%到90%)被掺入到细胞壁的壁t酸中,约10%被定位在质膜中。当细胞在无胆碱的培养基中生长时,它们的生长速度很慢,并且产生的细胞壁中磷酸盐的含量大大降低,并且没有可检测的胆碱。在不含胆碱的培养基中生长的细胞具有明显异常的形状和大小。通过向培养基中添加胆碱,可以逆转生化和形态异常。

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