摘要
以大豆幼苗为试验材料,研究不同浓度外源一氧化氮供体亚硝基铁氰化钠(50μmol/L、100μmol/L、200μmol/L)对30 mmol/L Na2CO3碱胁迫下大豆幼苗株高、鲜重、丙二醛含量、过氧化物酶活性等生理指标的影响。结果表明:与碱胁迫处理的大豆幼苗相比,外源一氧化氮处理后大豆株高和鲜重有不同程度提高,丙二醛含量和POD酶活性有明显降低。其中尤以100μmol/L亚硝基铁氰化钠处理效果最为显著。由此推测,外源一氧化氮处理可以缓解碱胁迫对大豆幼苗的伤害,同时100μmol/L亚硝基铁氰化钠效果最佳。
With soybean seedlings as experimental material, the effects of exogenous nitric oxide donor sodium nitroprusside （50μmol/L, 100μmol/L, 200/μmol/L） on physiological indexes of soybean seedling under alkaline stress （30 mmol/L NaECO3） were studied. Physiological indexes such as plant height, fresh weight, the content of MDA, peroxidase activity were measured. The results showed that plant height and fresh weight of seedling under alkaline stress treated by exogenous nitric oxide were higher than without exogenous nitric oxide. However, the content of MDA and the activity of POD decreased obviously. Especially the effect of 100 μmol/L sodium nitroprusside treatment was most remarkable. Therefore, exogenous nitric oxide treatment can alleviate alkaline stress on soybean seedling injury ,and 100μmol/L sodium nitroprusside was best.
出处
《种子》
北大核心
2015年第1期5-7,共3页
Seed
基金
衡水市科学技术研究计划资助项目(编号:09055 Z)
关键词
一氧化氮
大豆幼苗
碱胁迫
生理指标
nitric oxide
soybean seedlings
alkaline stress
physiological indexes
