外源富氢水对盐胁迫下绿豆幼苗生长的影响  

Effects of Exogenous Hydrogen-rich Water on the Growth of Mung Bean Seedlings under Salt Stress

作　　者：武泉栋 姚玲 崔健 张丁 郭锋[1] 申慧芳[3] 王新妤 王晋 WU Quan-dong;YAO Ling;CUI Jian;ZHANG Ding;GUO Feng;SHEN Hui-fang;WANG Xin-yu;WANG Jin(College of Resources and Environment,Shanxi Agricultural University,Taigu 030801,China;College of Agriculture,Shanxi Agricultural University,Taigu 030801,China;Department of Basic Sciences,Shanxi Agricultural University,Taigu 030801,China)

机构地区：[1]山西农业大学资源环境学院,山西太谷030801 [2]山西农业大学农学院,山西太谷030801 [3]山西农业大学基础部,山西太谷030801

出　　处：《土壤通报》2024年第4期1014-1021,共8页Chinese Journal of Soil Science

基　　金：山西省重点研发计划项目(201803D221020-3)资助。

摘　　要：【目的】盐胁迫是制约绿豆生长最严重的非生物胁迫之一,如何缓解绿豆盐胁迫已成为植物抗逆研究方面的重要课题。富氢水作为一种新型外源添加物质在提高植物抗逆性方面发挥着重要作用,本文旨在探究外源富氢水缓解绿豆盐胁迫的可行性。【方法】以绿豆幼苗为试验材料,采用沙培方式,从幼苗生长指标、光合色素含量和抗逆性指标三方面,研究根灌不同浓度富氢水(25%、50%和100%)对盐含量1.5 g kg^(-1)盐胁迫下绿豆幼苗的缓解效应。【结果】与非盐胁迫对照相比,在1.5 g kg^(-1)盐胁迫处理下,绿豆幼苗生长和叶片光合色素含量受到明显抑制,丙二醛、可溶性糖和可溶性蛋白的含量明显增加。与1.5 g kg^(-1)盐胁迫、非富氢水处理相比,施加不同浓度富氢水(25%、50%、100%)处理均有效促进绿豆幼苗根系和地上部生长,丙二醛的含量显著降低,叶绿素、可溶性糖含量显著增加(P<0.05)。【结论】外源不同浓度富氢水处理均能缓解绿豆幼苗盐胁迫,其中50%富氢水处理的缓解效果最佳。利用外源富氢水缓解盐胁迫的成本较低、操作简单、不会对环境造成污染,研究结果对外源富氢水缓解绿豆幼苗盐胁迫方面的应用具有一定的指导意义。[Objective]Salt stress is one of the most severe abiotic stresses limiting the growth of mung bean,and how to alleviate salt stress in mung bean has become an important topic in plant stress research.Hydrogen-rich water,as a new exogenous additive,plays an important role in improving plant stress resistance,so this paper aims to investigate the feasibility of exogenous hydrogen-rich water to alleviate salt stress in mung bean.[Methods]The study was conducted to investigate the mitigating effect of root irrigation with different concentrations of hydrogen-rich water(25%,50%and 100%)on mung bean seedlings under salt stress at 1.5 g kg^(-1) salinity in terms of seedling growth indices,photosynthetically active pigment content and stress tolerance indices using sand culture as test material.[Results]Compared with the control,the growth and leaf photosynthetic pigment contents of mung bean seedlings were significantly inhibited,and the contents of malondialdehyde,soluble sugars and soluble proteins were significantly increased under the 1.5 g kg^(-1) salt stress treatment.Compared with the 1.5 g kg^(-1) salt stress treatment,the applications with different concentrations of exogenous hydrogenrich water(25%,50%and 100%)were effective in promoting the growth of roots and aerial parts of mung bean seedlings,increasing the content of chlorophyll,decreasing the content of malondialdehyde,and increasing the content of soluble sugars and soluble proteins.[Conclusion]Different concentrations of exogenous hydrogen-rich water treatments can alleviate salt stress in mung bean seedlings,and the treatment with 50%hydrogen-rich water has the best alleviating effect.The use of exogenous hydrogen-rich water to alleviate salt stress has low cost,simple operation,and no environmental pollution,which will have certain guiding significance for the application of exogenous hydrogen-rich water in alleviating salt stress.

关 键 词：绿豆 富氢水 盐胁迫 幼苗 

分 类 号：S522[农业科学—作物学]