摘要
以草莓盆栽苗、组织培养苗和叶圆片为试材,探讨了外源水杨酸对提高草莓耐盐性的效果。结果表明:适当浓度的水杨酸能够降低盐胁迫下草莓叶片质膜相对透性和过氧化程度,提高叶绿素含量和抗氧化酶活性,从而缓解NaCl对草莓的伤害,改善草莓的生长状况。不同材料对有效水杨酸浓度的要求存在明显差异,盆栽苗、组织培养苗和叶圆片的最佳处理浓度分别为0.4、0.04和0.1 mmol.L-1。
Took potting seedling, subculture in vitro and leaf disc as experimental materials, the effect of exogenous salicylic acid（SA） on promoting salt-tolerance of strawberry was conducted. The results showed that exogenous salicylic acid at appropriate concentrations reduced cell relative permeability and lipid peroxidation, increased the content of chlorophyl and activities of antioxidative enzymes,thus reduced the injury caused by NaC1 and enhanced the growth of strawberry. The effective SA concentrations to different materials were different obviously. The op- timum SA concentration to potting seedling was 0. 4 mmol· L^-1 while that of subculture in vitro and leaf disc were 0.04 and 0.1 mmol·L^-1 ,respectively.
出处
《黑龙江农业科学》
2008年第6期77-80,共4页
Heilongjiang Agricultural Sciences
基金
青岛市科技计划资助项目(06-2-2-15-jch)
关键词
水杨酸
草莓
耐盐性
salicylic acid
strawberry
salt-tolerance
