Were used to investigate the dehydration protection in the physiological and chemical levels represented by the changes of photosynthesis , sucrose , antioxidants and electrolyte leakage during desiccation and subsequent rehydration , and molecular mechanisms of dehydration tolerance by means of mrna differential display based on the studies of deng ' s Br成熟植株的离体叶片为实验材料,以光合作用、蔗糖、抗氧化剂系统和离子渗漏等在脱水复水过程中的变化为切入点,从生理生化水平上探讨其耐脱水复苏的机制;同时应用mrna差异显示技术,从分子水平上探讨其耐脱水复苏的机制。