黑龙江农业科学Issue(1)：37-45,9.DOI:10.11942/j.issn1002-2767.2024.01.0037
水杨酸对高温胁迫下白术生理特性的影响
Effects of Salicylic Acid on Physiological Characteristics of Atractylodes macrocephala Under High Temperature Stress
摘要
Abstract
In order to explore the mitigation effect of salicylic acid(SA)on Atractylodes tyloseedlings under high temperature stress,and to select the optimal SA concentration suitable for alleviating high temperature stress injury.The effects of 3 different concentrations of SA solutions,including 0.5 mmol L-1,1.0 mmol·L-1 and 2.0 mmol·L-1,and different degrees of high temperature treatment on the chlorophyll fluorescence parameters,root scanning parameters and root vitality of the leaves were studied.The result showed that,in terms of Fv'/Fm'、ΦPⅡ and NPQ measured by chlorophyll fluorescence,the NPQ values of blank group were higher than those of treatment group under high temperature stress,while the Fv'/Fm'and ΦPⅡ values of blank group were lower than those of treatment group,and the SA solution sprayed with 0.5 mmol·L-1 had the most significant effect compared with the control group.Spraying 0.5 mmol·L-1 SA could promote the root surface area of the seedlings under high temperature stress,and the promoting effect of spraying 1.0 mmol·L-1SA was more significant in terms of root length,projected area and average diameter.The highest value of root activity was found in the seedlings sprayed with 1.0 mmol·L-1 SA solution.In conclusion,the SA of 0.5 mmol·L-1 can effectively alleviate the damage of high temperature on white surgery seedlings.关键词
白术/水杨酸/高温胁迫/叶片Key words
atractylodes macrocephala/salicylic acid/high temperature stress/blade引用本文复制引用
李刚,李靖琪,魏庆红,段伟伟,陈娜..水杨酸对高温胁迫下白术生理特性的影响[J].黑龙江农业科学,2024,(1):37-45,9.基金项目
2022年高校优秀人才培育项目(gxgnfx2022164) （gxgnfx2022164）
亳州职业技术学院中医药研究专项(ZXky2215). （ZXky2215）
