湖北农业科学 ›› 2025, Vol. 64 ›› Issue (2): 89-93.doi: 10.14088/j.cnki.issn0439-8114.2025.02.014

• 植物保护 • 上一篇    下一篇

草珊瑚挥发油对越南槐圆斑病病原菌的抑制作用

丘卓秋a,b, 蒋妮a,b, 詹鑫婕a,b, 宋利沙a,b, 李林轩a, 黄琦a,b   

  1. 广西壮族自治区药用植物园,a.广西道地药材高品质形成与应用重点实验室/广西中药材良种繁育工程技术研究中心; b.国家中医药传承创新中心,南宁 530023
  • 收稿日期:2024-05-23 出版日期:2025-02-25 发布日期:2025-03-07
  • 通讯作者: 李林轩,正高级工程师,硕士,主要从事药用植物栽培研究,(电子信箱)lilinxuan1125@163.com;詹鑫婕,工程师,硕士,主要从事药用植物病虫害防治研究,(电话)18878730996(电子信箱)554504719@qq.com。
  • 作者简介:丘卓秋(1992-),女,广西贵港人,工程师,硕士,主要从事药用植物保护研究,(电子信箱)1562159766@qq.com。
  • 基金资助:
    肉桂等广西特色药材高质量生产关键技术及系列产品开发研究项目(桂科AA22096021); 广西中医药多学科交叉创新团队项目(GZKJ2305); 广西道地药材高品质形成与应用重点实验室项目(ZJC2020003)

The inhibitory effects of volatile oil of Sarcandra glabra on the Didymella glomerata of Sophora tonkinensis

QIU Zhuo-qiua,b, JIANG Nia,b, ZHAN Xin-jiea,b, SONG Li-shaa,b, LI Lin-xuana, HUANG Qia,b   

  1. a.Guangxi Key Laboratory of High-Quality Formation and Utilization of Dao-di Herbs/Guangxi Chinese Medicinal Materials Breeding Engineering Technology Research Center; b.National Center for Traditional Chinese Medicine Inheritance and Innovation, Guangxi Botanical Garden of Medicinal Plants, Nanning 530023, China
  • Received:2024-05-23 Published:2025-02-25 Online:2025-03-07

摘要: 探明草珊瑚[Sarcandra glabra (Thunb.) Nakai]挥发油对越南槐(Sophora tonkinensis Gagnep.)圆斑病病原菌(Didymella glomerata)的抑菌活性及作用机理。通过测定菌落直径及菌丝体质量,研究挥发油对越南槐圆斑病病原菌生长的抑制作用;通过测定电导率、可溶性蛋白质含量、还原糖含量、丙二醛(MDA)含量,初步探讨挥发油的作用机制。结果表明,草珊瑚挥发油对越南槐圆斑病病原菌具有显著抑菌活性,EC50为271.00 mg/L;挥发油质量浓度2 000 mg/L、作用72 h对菌丝生长的抑制效果最好,菌落扩展和菌丝生长抑制率分别为100%、95.00%;处理的电导率、可溶性蛋白质含量、MDA含量均显著高于对照,挥发油质量浓度2 000 mg/L、处理72 h的电导率和可溶性蛋白质含量分别是对照的1.54倍和4.74倍;MDA含量在处理96 h达到最大值,是对照的3.11倍;处理还原糖含量变化不大,对照还原糖含量随时间的延长而降低,比处理72 h降低了52.37%。

关键词: 草珊瑚[Sarcandra glabra (Thunb.) Nakai], 越南槐(Sophora tonkinensis Gagnep.), 挥发油, 圆斑病病原菌(Didymella glomerata), 抑制作用

Abstract: The antibacterial activity and mechanism of the volatile oil of Sarcandra glabra (Thunb.) Nakai against Didymella glomerata of Sophora tonkinensis Gagnep. were investigated. The inhibitory effects of Sarcandra glabra oil on the growth of Didymella glomerata were studied by measuring the colony diameter and mycelium weight. The electrical conductivity, soluble protein, reducing sugar and malondialdehyde (MDA) were determined to investigate the action mechanism of Sarcandra glabra oil. The results showed that the volatile oil of Sarcandra glabra had significant antibacterial activity against the Didymella glomerata of Sophora tonkinensis, and the EC50 was 271.00 mg/L. The inhibitory effect on mycelial growth was the best when the concentration of volatile oil was 2 000 mg/L and the treatment time was 72 h. The inhibitory rate of colony expansion and mycelial growth were 100% and 95.00%, respectively. The electrical conductivity, soluble protein content and MDA content of the treatment group were significantly higher than those of the control group. The electrical conductivity and soluble protein content of the treatment were 1.54 times and 4.74 times of those the control, respectively when the mass concentration of volatile oil was 2 000 mg/L for 72 h. MDA reached its maximum value at 96 h, which was 3.11 times that of the control. The reducing sugar content in the treatment did not change much, and the reducing sugar content in the control group decreased with the extension of time, and was 53.36% lower than that in the treatment group at 72 h.

Key words: Sarcandra glabra (Thunb.) Nakai, Sophora tonkinensis Gagnep., volatile oil, Didymella glomerata, inhibitory effects

中图分类号: