多糖
细胞壁
细菌
地氯酸
微生物学
生物
细菌细胞结构
结缔组织
毒力
有机体
抗原
生物化学
化学
肽聚糖
免疫学
基因
遗传学
作者
Christopher Jones,Barbara Mulloy
出处
期刊:Humana Press eBooks
[Humana Press]
日期:2003-11-14
卷期号:: 149-168
被引量:5
标识
DOI:10.1385/0-89603-215-9:149
摘要
Polysaccharides are ubiquitous components of living tissues. They are storage compounds in both animals and plants, and form important structural elements in, for example, plant cell walls, insect exoskeletons, and animal connective tissues. In bacteria, they are important both as structural elements in the cell wall (the teichoic and teichuronic acids) and as surface antigens, such as the O-antigenic oligo- or polysaccharide chain of the lipopolysaccharides (LPS) of gram-negative species, and the capsular polysaccharides (CPS) found on many pathogenic bacteria. These extracellular bacterial polysaccharides have a protective function, preventing desiccation of the organism, and are important determinants of virulence, since they shield the bacterium from the body's defenses.
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