CELL-CYCLE OF CHLORELLA-VULGARIS CAN DEVIATE FROM THE SYNCHRONOUS BINARY DIVISION MODEL

Conditioned medium from high density Chlorella vugaris cultures was fr eeze dried extracted into ethanol. The ethanol was volatilized and the resulting powder then introduced with C. vulgaris photoautotrophic cu ltures which underwent asynchronous DNA replication forming cells with two, three, four, and six autospores instead of 2(n) characteristic o f synchronous DNA replication, These cells were blocked at the divisio n stage of the cell cycle.