Capsules, Slime Layers, and S-Layers

Capsules, slime layers, and S-layers are outer coverings on prokaryotic cells. These layers help bacteria and archaea survive, attach to surfaces, and interact with their environment. They are often made of polysaccharides, polypeptides, proteins, or glycoproteins.

Capsules are tightly bound and ...

Many prokaryotes are covered with sticky and slimy materials outside their cell wall, which exists in two forms- capsules and slime layers.

Capsules are highly organized layers of polysaccharides that are firmly attached to the cell wall.

In contrast, less organized layers of polysaccharides form the slime layer. A bacterial species ...