Abstract
Effects of boron and calcium on the blue-green algaCalothrix parietina were determined. There was a significant decrease in growth, chlorophylla, saccharide and total nitrogen fixed under Ca2+ and boron deficiency. The addition of boron at different concentrations to Ca2+-deficient cultures led to partial recovery of these parameters. Calcium addition to B-deficient cells led to a partial recovery of growth, saccharide, chlorophylla and total nitrogen fixed. At high concentrations of calcium these parameters were significantly inhibited. The data also revealed that the different responses to B concentrations were due to the Ca2+ level in the medium.
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El-Zahraa, F., Zaki, T. Effect of boron and calcium on growth and nitrogen fixation of the blue-green algaCalothrix parietina . Folia Microbiol 44, 201–204 (1999). https://doi.org/10.1007/BF02816243
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DOI: https://doi.org/10.1007/BF02816243