[Effect of sulfur-containing nucleotide peptide on the morphology and nucleic acid content in Anabaena culindrica].

The exogenous action of a sulphur-containing nucleotidepeptide on Anabaena cylindrica caused an increase in the biomass of the alga by 76% as a result of acceleration of growth and larger dimensions of cells. The content of nucleic acids per cell also increased: that of DNA by 40%, that of RNA, by 11%.