The cultures inoculated with f/2 served as control. All data were mean±1. SE (n = 3). (A). Inoculation of lysate of C.vulgaris with C. vulgaris under different volume ratio for about a week. (B). Inoculation of lysate with C. vulgaris under the ratio 1∶10 and the Chl a content was measured before addition of lysate and for 8 days thereafter.