Summary
Gas-cylinder membranes and α-granules were isolated from cells of the blue-green alga,Anabaena flos-aquae D 124. Gas-cylinder membranes, which are 1,100 Å wide after isolation, show striations having a periodicity of 50 Å. The membranes appear globular in section with a spacing of about 40 Å between globules. There are strong indications that the globules are proteinaceous with molecular weights of 22,000±2,000. Possible homologies of these membranes with viral coat protein are discussed. α-granules were shown by a variety of techniques to be polysaccharide.
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Smith, R.V., Peat, A. & Bailey, C.J. The isolation and characterisation of gas-cylinder membranes and α-granules fromAnabaena flos-aquae D 124 . Archiv. Mikrobiol. 65, 87–97 (1969). https://doi.org/10.1007/BF00693312
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DOI: https://doi.org/10.1007/BF00693312