Abstract
The blue-green algaPlectonema boryanum was chosen for a study of the properties of rRNA of procaryotic organisms. The process of rRNA species maturation was studied by labelling RNA with the isotope 32P.23 S and 16 S rRNA molecules each have their own precursors. Molecules with molecular weights of 1.65 X 106 and 1.24xlO6 were identified as precursors of23 S rRNA, while the molecules 0.87 X 106; 0.78 X 106 and 0.68 X 106 were found to be precursors of the 16 S rRNA. No common polycistronic precursor could be found.
Experiments done with algae cultivated in light and in the dark confirmed the fact, that the rate of rRNA synthesis is reduced in the dark, without however stopping completely.
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Sofrová, D., Hladík, J., Ullmann, J. et al. Maturation of ribosomal RNA in blue-green algae in light and darkness. Biol Plant 20, 47–52 (1978). https://doi.org/10.1007/BF02922928
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DOI: https://doi.org/10.1007/BF02922928