Muramic acid in the cell walls of Prochloron |
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Authors: | D J W Moriarty |
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Institution: | (1) Division of Fisheries and Oceanography, CSIRO, 4163 Cleveland, Queensland, Australia |
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Abstract: | Muramic acid has been detected in Prochloron with the aid of two different techniques. It was assayed by cleaving D-lactate from muramic acid and then reducing NAD with D-lactate dehydrogenase and measuring the NADH with bacterial luciferase. Gas-liquid chromatography of trimethylsilyl derivatives of cell extracts confirmed that muramic acid was present in about the quantity given by the D-lactate assay. The amount of muramic acid present was 1.7±0.2 g/mg dry weight or 1.3fg/ m2 of cell surface. This suggests that the thickness of the peptidoglycan layer in Prochloron is similar to that in blue-green algae.Abbreviations
D-LDH
d-lactate dehydrogenase
- MA
muramic acid
- TMS
trimethylsilyl
- TLE
thin layer electrophoresis
- GLC
gas-liquid chromatography |
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Keywords: | Prochloron Muramic acid Peptidoglycan |
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