![]() The capsule also acts as a virulence factor and is responsible for the pathogenicity of many microorganisms like Streptococcus pneumoniae, Escherichia coli, Neisseria meningitis etc. A mucus layer also protects a cell from phagocytosis. The cytoplasm of bacteria partially forms a capsule, which then migrates to the cell wall, and there it exists as a mucous or slime covering.Ī bacterial capsule protects a cell from desiccation because of its mucous content. The capsule or glycocalyx is composed of glycoproteins. Capsule staining can be performed by employing India ink, Anthony’s, Maneval’s and Hiss method.Ī bacterial capsule refers to the mucilaginous coating that surrounds the cell wall of bacteria. Thus, it becomes necessary to identify the presence of an extracellular capsule. It is an important staining method because some bacteria like Bacillus anthracis, Streptococcus pneumoniae etc., have a capsule, which can cause pathogenicity in humans and animals. Content: Capsule StainingĪ capsule staining is a special staining method, which uses differential capsule stains that either highlight the capsule or stains the bacterial cell along with the background. ![]() Here, you will get to know the definition, principle, different methods and significance of the capsule staining, along with the meaning of bacterial capsule. Thus, by knowing the presence of the capsule, we can determine the degree of pathogenicity. ![]() It is necessary to perform capsule staining because a capsule’s presence indicates a virulent strain of bacteria that can cause disease.
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