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胡杨膜系统的盐稳定性及盐胁迫下的代谢调节
引用本文:马焕成,王沙生.胡杨膜系统的盐稳定性及盐胁迫下的代谢调节[J].西南林学院学报,1998,18(1):15-23.
作者姓名:马焕成  王沙生
作者单位:[1]西南林学院林业系 [2]北京林业大学森林生物中心
摘    要:比较胡杨和群众杨在盐分胁迫下的生化反应发现:(1)胡杨的细胞膜系统能忍耐200mM NaCl的高盐处理,其膜透性在高盐处理3d没有显著增加,而群众杨的膜透性随盐分浓度的升高而升高。

关 键 词:膜透性  盐稳定性  多胺  SOD  胡杨  盐胁迫  代谢

The Stability of the Membrane and Metabolic Response of P euphratica Under Salt Stress
Ma Huancheng,Wang Shasheng.The Stability of the Membrane and Metabolic Response of P euphratica Under Salt Stress[J].Journal of Southwest Forestry College,1998,18(1):15-23.
Authors:Ma Huancheng  Wang Shasheng
Institution:Ma Huancheng 1 Wang Shasheng 2
Abstract:The comparison of biochemical response between P euphratica and P popularis showed that plasmmnan of P euphratica could tolerate high salt stress of 200mM NaCl The membrane permeability of P euphratica did not increase significantly by day 3 after salt treatment,while that of hybrid increased with the increase of salt treatments The factors related to the high membrane stability in P euphratica might be:(1)SOD activity increased with increasing salt treatments;(2)the synthesis of compatible osmotic solutes such as polyamine and proline was sensitive to salt stress In addition,the new bands proteins appeared under high salt stress,which was also an indicator of salt tolerance for P euphratica
Keywords:P  euphratica  Membrane permeability  SOD enzyme  Metabolism  Polyamine
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