Autoradiographic Studies of [methyl-H]Thymidine Incorporation in a Cyanobacterium (Microcystis wesenbergii)-Bacterium Association and in Selected Algae and Bacteria.
The present investigation showed by means of autoradiography that the cyanobacterium Microcystis wesenbergii did not incorporate [H]thymidine at nanomolar concentrations, whereas its associated heterotrophic bacteria appearing in the gelatinous cover of the cyanobacterium became labeled. Several other tested cyaobacteria and algae did not incorporate [H]thymidine.
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Institute of Limnology, University of Uppsala, S-751 22 Uppsala, Sweden.