外源脯氨酸浸种对盐胁迫条件下黄瓜根苗生长的影响  

Effects of Exogenous Proline on the growth of Cucumber seedlings under the Salt Stress

作　　者：李玉琴[1] 刘良全[1] 张永清[2] 

机构地区：[1]山西师范大学生命科学学院,山西临汾041004 [2]山西师范大学城市与环境科学学院,山西临汾041004

出　　处：《安徽农学通报》2008年第13期33-34,19,共3页Anhui Agricultural Science Bulletin

基　　金：山西师范大学校级基金项目"优质;高产;富锌蔬菜专用肥配方研究"资助

摘　　要：以黄瓜(Cucumis sativus L.)为材料,采用营养液砂培法,研究了在不同浓度NaCl,Na2CO3胁迫条件下,外源脯氨酸对黄瓜根苗生长及抗氧化酶活性的影响。结果表明:外源脯氨酸能显著提高幼苗的根长、根重及叶片叶绿素含量,增加根系吸收面积、过氧化氢酶(CAT)等植物保护酶的活性。适宜浓度的外源脯氨酸可以提高黄瓜幼苗的抗盐能力,减轻和缓解盐伤害。The salt resistance effects of exogenous proline in the growth of cucumber seedlings were studied with sand culture. The results showed that exogenous proline could significantly improved the root length, the dry weight of root, chlorophyll content, increased the absorption surface area of root, activities of protected enzymes such as catacase（CAT）. It is proposed that exogenous proline could induce salt resistance, salt tolerance and decrease alleviate damage degree of salt stress of cucumber seedlings.

关 键 词：外源脯氨酸 盐胁迫 黄瓜 根系 

分 类 号：S642.2[农业科学—蔬菜学]