中药材2023，Vol.46Issue(12)：2938-2944,7.DOI:10.13863/j.issn1001-4454.2023.12.005
光照强度对荆芥生长及药效成分含量的影响
Effects of Light Intensity on Growth and Contents of Effective Components of Schizonepeta tenuifolia
摘要
Abstract
Objective:To explore the effect of light intensity on the growth and volatile components contents of Schizonepeta tenuifo-lia seedlings,so as to provide a theoretical reference for optimizing the cultivation technology and improving its medicinal quality of Schizonepeta tenuifolia.Methods:After growing to 40 days,the seedlings of Schizonepeta tenuifolia were treated with different light inten-sities(5 000 lx～30 000 lx),and the morphological characteristics were determined every 7 days after treatment,and the antioxidant en-zyme activity,fresh weight and dry weight of Schizonepeta tenuifolia leaves was measured on day 28.In addition,the contents of(-)-pulegone,(+)-menthone,(+)-limonene in leaves were determined by GC.Results:The plant height,leaf number,pitch number,fresh weight and dry weight of the above ground part under 25 000 lx were all the largest.The diameter and density of glandular scales under different light intensities varied after a certain period of light treatment,and on day 28,the density of glandular scales at 25 000 lx was the largest(6/mm2).At 5 000,10 000 and 30 000 lx,the removal of ROS by Schizonepeta tenuifolia mainly depended on the action of SOD,and at 15 000,20 000 and 25 000 lx mainly depended on the action of POD.From the 14th day of light treatment,the three vola-tile components in the leaves were significantly different under different light intensities,and the content was the highest at 25 000 lx on the day 28.Conclusion:Schizonepeta tenuifolia has different adaptations to different light intensities,which grows best at 25 000 lx,and has a high content of effective components in the late stage of light treatment.This study can provide a theoretical basis for large-scale production in the field and for the the mechanism of regulation of the synthesis of effective components of Schizonepeta tenuifolia.关键词
荆芥/光照强度/生长/药效成分Key words
Schizonepeta tenuifolia Briq./Light intensity/Growth/Effective components分类
医药卫生引用本文复制引用
梁亚芳,党静洁,舒娟,李秋娟,贾聪玲,刘潺潺,吴啟南..光照强度对荆芥生长及药效成分含量的影响[J].中药材,2023,46(12):2938-2944,7.基金项目
国家自然科学基金面上项目(81973435) （81973435）
国家中医药管理局科研项目(2022) （2022）
