马蔺(Iris lactea var. chinensis)抗盐生理特性的研究  

Research on Physiological Characteristics of Salt Resistance in Iris lactea var.chinensis

作　　者：许玉凤[1] 王雷[1] 王文元[2] 宋哲[2] 王丹[2] 

机构地区：[1]沈阳农业大学,沈阳110161 [2]沈阳市植物园,沈阳110163

出　　处：《植物研究》2009年第5期549-552,共4页Bulletin of Botanical Research

摘　　要：采用溶液培养的方法,对马蔺(Iris lacteavar.chinensis)耐盐生理特性进行了研究。结果表明,NaC l胁迫使马蔺叶片中叶绿素含量减少,干物质累积下降,株高降低;使叶片中活性氧产生速率增加,细胞膜质过氧化加剧,致使MDA含量和电解质渗透率增大,并且随着胁迫时间的延长和浓度的增加,对马蔺的生长影响就越严重。渗透调节物质脯氨酸和可溶性蛋白在马蔺抗盐特性中发挥了很重要的作用。The physiological characteristics of salt resistance in Iris lactea var.chinensis was studied by using solution culture.The results showed that NaCl stress made Chlorophy Ⅱ content,dry weight and plant height decreased in Iris lactea var.chinensis.NaCl stress increased production rate of active oxygen and permeability of plasma membrane as a result,MDA contents and relative electrolytic leakage increased.With the time of salt stress and salt density increased,the growth of I.lactea var. chinensis has been seriously affected. Adjusting osmotic substance such as proline and soluble protein has the much more impact on salt resistance in L lactea var. chinensis.

关 键 词：马蔺 盐胁迫 膜透性 渗透调节 

分 类 号：Q945[生物学—植物学]