Abstract:Mica sarcoma S180 cell membranes, [r-32 P] ATP and plant polysaccharides (PPS, ASPS. TF andlentinan)were incubated together for 5 min at 30℃. Phosphatidylinositides were isolated and subjected to cintillationfluid counting. The results showed that PPS and ASPS, especially the latter, could inbibit the phosphatidyinostolturnover obviously ,while TF and lentinan had no such effect.