碱胁迫对碱地风毛菊生理特性的影响  

Effect of Alkali Stress on Physiological Characteristics of Saussurea runcinata at Seedling Stage

作　　者：夏方山[1] 董秋丽[1] 董宽虎[1] 

机构地区：[1]山西农业大学动物科技学院,山西太谷030801

出　　处：《中国农学通报》2010年第21期152-155,共4页Chinese Agricultural Science Bulletin

基　　金：国家"十一五"科技支撑计划课题"退化草地植被恢复与重建关键技术研究"(2007BAD56B01);农业部公益性行业(农业)科研专项"人工草地优质牧草生产技术研究与示范"(nyhyzx07-022);山西省科技攻关项目"黄土高原退化草地植被恢复与草食畜生产关键技术研究与示范--退化草地植被恢复与重建关键技术研究"(20080312002-1)

摘　　要：试验对碱地风毛菊(Saussurea runcinata)苗期分别以NaHCO3和Na2CO3进行胁迫,浓度为0(CK)、30、60、90、120、150、180mmol/L,通过对其脯氨酸、丙二醛、可溶性糖及可溶性蛋白等耐盐碱生理指标的研究,以探讨碱胁迫对碱地风毛菊苗期生理特性的影响。结果表明:NaHCO3和Na2CO3胁迫下,碱地风毛菊中Pro、可溶性糖、可溶性蛋白及MDA含量均显著高于对照,且相同碱浓度胁迫下,根系中的含量显著高于叶片;Na2CO3胁迫对碱地风毛菊的伤害要大于NaHCO3。This experiment was carried out to assess the physiological property of Saussurea runcinata seedling under varying levels of NaHCO 3 and Na 2 CO 3 （0,30,60,90,120,150 and 180 mmol/L）.To explore the physiological property of Saussurea runcinata seedling under varying levels of NaHCO 3 and Na 2 CO 3,the Pro,soluble sugar,soluble protein and MDA contents of Saussurea runcinata were significantly higher than control,and the contents of roots were significantly higher than those of the leaves at the same alkali concentration of stress;the harm of Na 2 CO 3 is greater than NaHCO 3 to Saussurea runcinata.

关 键 词：碱地风毛菊 脯氨酸 丙二醛 可溶性糖 可溶性蛋白 

分 类 号：Q945.78[生物学—植物学]