ome physiological indexes of conchocelis of P.yezoensis under different temperature were measured including the contents of chlorophyll,soluble protein,MDA,soluble sugar and POD activity.The results showed that all of the measured contents and activity of conchocelis of P.yezoensis have little change under 24 ℃.When the conchocelises were cultured for 12 hours at 28 ℃ or 30 ℃,the content of chlorophyll sharply descended.The color of conchocelis changed from dark green to brown and some cells were dead.The c...