PROPERTIES OF CHLORELLA-VULGARIS STRAIN ADAPTED TO HIGH-CONCENTRATION OF AMMONIUM NITROGEN

  • 1 January 1977
    • journal article
    • research article
    • Vol. 26  (2) , 185-197
Abstract
C. vulgaris is very sensitive to high concentrations of ammonium N. In medium containing 0.33 g NH4-N/l, its growth is inhibited by 50%. Prolonged incubation of the strain in media inhibiting any increase in cell number enabled the isolation of a strain with enhanced tolerance to high ammonium N concentration. The strain was designated C. vulgaris/AA. The concentration of N inhibiting the growth of the strain by 50% was 1.5 g NH4-N/l. The acquired character proved stable. The isolated strain demonstrated increased tolerance to high concentration of urea N. C. vulgaris/AA cells were larger than the cells of the parental strain.