干旱地区农业研究2013，Vol.31Issue(3)：150-154,5.
水分胁迫对小麦芽和根中脯氨酸含量及电导率的影响
Effects of water stress on proline content and relative conductivity in shoots and roots of different wheat cultivars
摘要
Abstract
The relative conductivity、proline and malondialdehyde(MDA) contents in shoots and roots at seeds germination period of Jinmai 47 (dryland species) and Shunmai 1718 (water species) were compared under water stress that was caused by using 19.2％ PEG6000 for 24 h.The results showed that:after 24 h of water stress,in shoots and roots of wheat,the relative conductivity were increased 22.71 and 31.04 percent respectively in Jinmai 47,and were increased-2.29 ％ and 5.3 ％ respectively in Shunmai ; The membrane injury percentage in Jinmai 47 was greater than in Shunmail718; The same trend was observed for MDA content in shoots and roots,it was increased 23.26％ and 72.55％ respectively in Jinmai 47,and 15.9％ and 61.24％ respectively in Shunmai 1718.Although membrane organizations of two wheat cultivars had being injured,Shunmai 1718 had less injury.Proline contents in shoots and roots of two wheat varieties were significantly increased.For example,it was increased 250.17％ and 75.31％ respectively in Jinmai 47 ; 744.72 ％ and 503.42 ％ respectively,in Shunmai1718.Shunmai 1718 had higher percentage of proline content increase than Jinmai 47 did.As a result,Shunmai1718 would have better protection effect on cell membrane system under water stress than Jinmai 47 did.关键词
水分胁迫/小麦/相对电导率/丙二醛/脯氨酸Key words
water stress/ wheat/ relative conductivity/ malondialdehyde(MDA) / proline分类
农业科技引用本文复制引用
张述义,邵嘉鸣,李新凤,刘玲玲,刘慧..水分胁迫对小麦芽和根中脯氨酸含量及电导率的影响[J].干旱地区农业研究,2013,31(3):150-154,5.基金项目
山西省科技攻关项目(20100311019-2) （20100311019-2）
