水杨酸浸种对紫羊茅抗冷性的影响  

Effect of Soaking the Seeds with Salicylic Acid on the Cold Resistance in Red fescue(Featua fubra L.)

作　　者：池春玉[1] 连永权[2] 赵岩[2] 李静怡[1] 丁国华[1] 

机构地区：[1]哈尔滨师范大学生命科学与技术学院,哈尔滨150025 [2]黑龙江畜牧兽医职业学院生物工程系,黑龙江双城150111

出　　处：《中国农学通报》2009年第14期186-189,共4页Chinese Agricultural Science Bulletin

基　　金：黑龙江省教育厅科研项目"几种草坪草脯氨酸变化规律的研究"(10555032);黑龙江自然科学基金"草坪草RGA的克隆和应用研究"(200844)

摘　　要：以0.25、0.5、1.0、2.0、4.0mmol/L五种浓度的水杨酸(salicylic aid,SA)浸泡处理冷季型草坪草紫羊茅(Featua fubra L.)种子,测定了经过4℃低温胁迫48h后紫羊茅体内脯氨酸含量、丙二醛含量和电解质渗出率。结果表明,适当浓度的水杨酸能够增加紫羊茅叶片脯氨酸含量,减缓膜脂过氧化产物丙二醛的积累,降低电解质渗出率,有助于提高紫羊茅抗冷能力。In this article the seeds of Red rescue （Featuafubra L.）, a cold-season type turf grass, were soaked with five kinds concentration of salicylic acid （SA） as 0.25, 0.5, 1.0, 2.0, 4.0 mmol/L. Under cold stress of 4 ℃ for 48 hours, the proline content, the Malondialdehyde （MDA） content and the electrolyte leakage in the Red fescue were determined. The result showed that the suitable concentration salicylic acid could increase the pro- line content, decrease the content of MDA which was a product of membrane lipid peroxidation, and reduce the electrolyte leakage rate in the Red fescue, which could improve the cold resistance ability of the Red fescues.

关 键 词：紫羊茅 水杨酸 抗冷性 脯氨酸含量 细胞膜透性 丙二醛 

分 类 号：S688.401[农业科学—观赏园艺]