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Picture of Gram -ve Archaean Bacterial Cell Wall (graphic)

Picture of Gram -ve archaeal cell wall. The image above is 600 pixels across and the original is 2,000 pixels across.

Picture of a generalised Gram negative archaeal cell wall (cf Gram positive archaeal cell wall). The mushroom like structures at the surface represent the S-layer. S-layers are protein lattices that envelop the cell and confer great strength. They are arranged in a crystalline fashion and are anchored into the underlying cell membrane. Such robust cell walls are crucial for those archaeans (extremophiles) that live in (to us) extreme environments.




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