盐藻醛缩酶的盐适应性及其与物质积累的关系  

Adaptability of Aldolase to Salinity and Relationship between Aldolase and Substance Accumulation in Alga Dunaliella salina

作　　者：郭金耀[1] 杨晓玲[1] 

机构地区：[1]淮海工学院海洋学院,江苏连云港222005

出　　处：《水产科学》2013年第8期463-466,共4页Fisheries Science

基　　金：中央财政支持地方高校发展专项资金资助(CXTD33)

摘　　要：在不同NaCl质量浓度下培养盐藻，分析盐藻醛缩酶的盐适应性及其与物质积累的关系。试验结果表明，在NaCl质量浓度为40-120g／L时，盐藻醛缩酶活性与盐度具有正相关性；在NaCl质量浓度为120-200g／L时，盐藻醛缩酶活性与盐度具有负相关性；在NaCl质量浓度为120g／L时，盐藻醛缩酶活性最高。盐藻醛缩酶是一种高盐适应酶。盐藻醛缩酶活性与盐藻细胞密度、叶绿素形成和蛋白质积累均呈正相关关系。在盐藻醛缩酶活性最高时，盐藻物质积累量最多。Adaptability of aldolase to salinity and relationship between the aldolase and substance accumulation were studied in alga Dunaliella salina. The results showed that the aldolase activity was found to be positive correlation with salinity concentration within the NaCl concentration from 40 g/L to 120 g/L, but to be negative correlation with NaCl concentration from 120 g/L to 200 g/L. The aldolase showed the maximal activity at NaCl concentration of 120 g/L, indicating that the aldolase is a kind of enzymes which can adapt well to salinity in Dunaliella salina. The aldolase activity was shown to be positively related to cell density, chlorophyll formation, and accumulation of protein. The maximal substance accumulation was observed at the maximal aldolase activity in Dunaliella salina.

关 键 词：盐藻 醛缩酶 盐适应性 物质积累 

分 类 号：Q945.78[生物学—植物学]