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用气相色谱法检测长奈瑟菌全细胞中的3-脱氧-D-甘露-2-辛酮糖酸和L-甘油-D-甘露庚糖。

Detection by gas chromatography of 3-deoxy-D-manno-2-octulosonic acid and L-glycero-D-manno-heptose in whole cells of Neisseria elongata.

作者信息

Guerrant G O, Moss C W

出版信息

J Clin Microbiol. 1986 Mar;23(3):425-30. doi: 10.1128/jcm.23.3.425-430.1986.

Abstract

Lipopolysaccharide components 3-deoxy-D-manno-2-octulosonic acid and L-glycero-D-manno-heptose were detected in hydrolysates from whole cells of Neisseria elongata by gas-liquid chromatography. Cells from a single plate were hydrolyzed, and carbohydrate components were converted to aldononitrile and O-methyloxime acetate derivatives for subsequent analyses by gas-liquid chromatography. 3-Deoxy-D-manno-2-octulosonic acid was well separated from other cell components as the O-methyloxime acetate derivative. With both derivatives, L-glycero-D-manno-heptose was readily identified by their different retention times. The procedure requires only a relatively small number of cells, and detection is accomplished without prior isolation of the lipopolysaccharide.

摘要

通过气液色谱法在长奈瑟菌全细胞水解产物中检测到脂多糖成分3-脱氧-D-甘露-2-辛酮糖酸和L-甘油-D-甘露庚糖。将来自单个平板的细胞进行水解,并将碳水化合物成分转化为醛糖腈和O-甲基肟乙酸酯衍生物,以便随后通过气液色谱法进行分析。3-脱氧-D-甘露-2-辛酮糖酸作为O-甲基肟乙酸酯衍生物与其他细胞成分得到了很好的分离。对于这两种衍生物,L-甘油-D-甘露庚糖可通过其不同的保留时间轻松鉴定。该方法仅需要相对少量的细胞,并且无需事先分离脂多糖即可完成检测。

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本文引用的文献

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Composition of O-antigenic lipopolysaccharides from Enterobacter cloacae.阴沟肠杆菌O抗原性脂多糖的组成
Microbiol Immunol. 1984;28(11):1169-79. doi: 10.1111/j.1348-0421.1984.tb00775.x.
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Cellular monosaccharide patterns of Neisseriaceae.奈瑟菌科的细胞单糖模式。
Acta Pathol Microbiol Scand B. 1976 Aug;84(4):177-88. doi: 10.1111/j.1699-0463.1976.tb01923.x.

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