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Arch Microbiol. 1977 May 13;113(1-2):57-60.

Lack of peptidoglycan in the cell walls of Methanosarcina barkeri.


Neither muramic acid and glucosamine nor D-glutamic acid or other amino acids typical of peptidoglycan were found in cell walls of two strains of Methanosarcina barkeri. The main components are galactosamine, neutral sugars and uronic acids. Therefore, the structural component of the cell wall most likely consists of an acid heteropolysaccharide, resembling that of Halococcus morrhuae. It is, however, not sulfated.

[Indexed for MEDLINE]

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