耐盐水稻品种９３４３经盐胁迫后，根系内诱导出一条活性很强的ＰＯＤ３同工酶谱带，而对盐敏感的１１８７、中作３２１、中作９３盐胁迫后活性很强的ＰＯＤ１谱带消失．蛋白质的变化呈现出与ＰＯＤ变化相类似的趋势，耐盐品种９３４３盐胁迫后某些蛋白质谱带含量增加，出现分子量与调渗蛋白相类似的２６ｋＤ蛋白质，但对盐敏感的三个品种则蛋白质含量下降，没有检测到２６ｋＤ蛋白．辐射后经ＮａＣｌ胁迫，耐盐的９３４３中同工酶和蛋白质均无明显变化，但不耐盐的三个品种，辐射后经盐胁迫出现同工酶谱带和蛋白质谱带增多． Salt-tolerant rice cultivar 9343 induced a highly active POD3 isozyme band in the root system, whereas the salt-sensitive 1187, Zhongzuo 321, Zhongyou POD1 band with strong activity after salt stress disappear. The change of protein showed a similar trend with the change of POD. The salt content of some proteins increased after salt-tolerant salt-tolerant 9343 salt, which appeared 26kD protein with similar molecular weight and putrefaction protein, but the three salt-sensitive protein The content decreased, no 26kD protein was detected. After irradiation, the isozymes and proteins of 9343, which did not change significantly under NaCl stress, but were not tolerant to salt stress, showed increased isozyme bands and protein bands under salt stress.