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来自不同亚种的杀鲑气单胞菌脂多糖核心：不寻常的果胶溶解亚种。

The Aeromonas salmonicida Lipopolysaccharide Core from Different Subspecies: The Unusual subsp. pectinolytica.

作者信息

Merino Susana, Tomás Juan M

机构信息

Departamento de Microbiología, Facultad de Biología, Universidad de Barcelona Barcelona, Spain.

出版信息

Front Microbiol. 2016 Feb 11;7:125. doi: 10.3389/fmicb.2016.00125. eCollection 2016.

DOI:10.3389/fmicb.2016.00125
PMID:26904002
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4749718/
Abstract

Initial hydridization tests using Aeromonas salmonicida typical and atypical strains showed the possibility of different lipopolysaccharide (LPS) outer cores among these strains. By chemical structural analysis, LPS-core SDS-PAGE gel migration, and functional and comparative genomics we demonstrated that typical A. salmonicida (subsp. salmonicida) strains and atypical subsp. masoucida and probably smithia strains showed the same LPS outer core. A. salmonicida subsp. achromogenes strains show a similar LPS outer core but lack one of the most external residues (a galactose linked α1-6 to heptose), not affecting the O-antigen LPS linkage. A. salmonicida subsp. pectinolytica strains show a rather changed LPS outer core, which is identical to the LPS outer core from the majority of the A. hydrophila strains studied by genomic analyses. The LPS inner core in all tested A. salmonicida strains, typical and atypical, is well-conserved. Furthermore, the LPS inner core seems to be conserved in all the Aeromonas (psychrophilic or mesophilic) strains studied by genomic analyses.

摘要

使用杀鲑气单胞菌典型菌株和非典型菌株进行的初步杂交试验表明，这些菌株之间可能存在不同的脂多糖（LPS）外核心。通过化学结构分析、LPS核心SDS-PAGE凝胶迁移以及功能和比较基因组学，我们证明典型的杀鲑气单胞菌（鲑气单胞菌亚种）菌株以及非典型的马苏气单胞菌亚种和可能的史密斯气单胞菌菌株具有相同的LPS外核心。杀鲑气单胞菌无色杆菌亚种菌株显示出相似的LPS外核心，但缺少最外部的一个残基（一个与庚糖α1-6相连的半乳糖），这并不影响O抗原与LPS的连接。杀鲑气单胞菌果胶分解亚种菌株显示出相当大的LPS外核心变化，这与通过基因组分析研究的大多数嗜水气单胞菌菌株的LPS外核心相同。在所有测试的典型和非典型杀鲑气单胞菌菌株中，LPS内核心是高度保守的。此外，在通过基因组分析研究的所有气单胞菌（嗜冷或嗜温）菌株中，LPS内核心似乎都是保守的。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2a81/4749718/b16e2da1abf4/fmicb-07-00125-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2a81/4749718/0180c2aa1bae/fmicb-07-00125-g001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2a81/4749718/b5be351253cf/fmicb-07-00125-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2a81/4749718/21a377a21357/fmicb-07-00125-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2a81/4749718/faf476c6e044/fmicb-07-00125-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2a81/4749718/04c22eef362f/fmicb-07-00125-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2a81/4749718/41bee1c74ab4/fmicb-07-00125-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2a81/4749718/b16e2da1abf4/fmicb-07-00125-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2a81/4749718/0180c2aa1bae/fmicb-07-00125-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2a81/4749718/308f5a2d94bc/fmicb-07-00125-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2a81/4749718/b5be351253cf/fmicb-07-00125-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2a81/4749718/21a377a21357/fmicb-07-00125-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2a81/4749718/faf476c6e044/fmicb-07-00125-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2a81/4749718/04c22eef362f/fmicb-07-00125-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2a81/4749718/41bee1c74ab4/fmicb-07-00125-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2a81/4749718/b16e2da1abf4/fmicb-07-00125-g008.jpg

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