三七(<i>Panax notoginseng</i>)根残体化感自毒效应研究

张金燕; 寸竹; 龙光强; 张广辉; 孟珍贵; 李龙根; 杨生超; 陈军文

doi:10.11913/PSJ.2095-0837.2018.30431

三七(Panax notoginseng)根残体化感自毒效应研究

张金燕^1,2,3,
寸竹^1,2,3,
龙光强^2,3,
张广辉^2,3,
孟珍贵^1,2,3,
李龙根^1,2,3,
杨生超^2,3,
陈军文^1,2,3, ,

1. 云南农业大学农学与生物技术学院, 昆明 650201;
2. 云南农业大学云南省药用植物生物学重点实验室, 昆明 650201;
3. 云南农业大学西南中药材种质创新与利用国家地方联合工程研究中心, 昆明 650201

基金项目:

云南省重大科技专项（2016ZF001，2017ZF001）；云南省中青年学术技术带头人后备人才项目（2014HB011）。

详细信息

作者简介:
张金燕(1992-),女,硕士研究生,研究方向为植物生理学(E-mail:2510846720@qq.com)。

通讯作者:
陈军文,E-mail:cjw31412@163.com

中图分类号: Q946.83;S567.23⁺6
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出版历程
- 收稿日期: 2017-11-19
- 网络出版日期: 2022-10-31
- 发布日期: 2018-06-27

Study on autotoxicity of Panax notoginseng root residue

1. College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China;
2. Key Laboratory of Medicinal Plant Biology of Yunnan Province, Yunnan Agricultural University, Kunming 650201, China;
3. National & Local Joint Engineering Research Center on Germplasm Innovation & Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, Kunming 650201, China

Funds:

This work was supported by grants from the Major Science and Technology Programs of Yunnan Province (2016ZF001, 2017ZF001) and Project of Young and Middle-Aged Talent of Yunnan Province (2014HB011).

摘要

摘要: 为研究三七（Panax notoginseng （Burk）F. H. Chen）采收过程中残留须根的化感自毒效应，采用土培和水培2种方法，按不同比例添加三七须根粉碎物，检测根残体作用下土培三七土壤中皂苷的动态变化及水培三七根部形态结构变化。结果显示，土培条件下，随着须根粉碎物处理时间的延长，土壤中皂苷成分种类增加、总皂苷含量减少。水培条件下，随着处理时间的延长，添加须根粉碎物处理后的三七根尖细胞壁增厚，细胞中出现菌丝体；随着处理时间及处理浓度的增加，细胞开始皱缩甚至破碎，细胞中无完整细胞器结构，三七根部细胞结构差异明显。研究表明三七采收过程中残留在土壤中的须根腐解释放的化学物质可能是导致三七自毒效应的因素之一。
- 三七 /
- 残根 /
- 皂苷成分 /
- 根尖形态 /
- 化感自毒效应
Abstract: To study the allelopathic autotoxicity of residues in the process of harvesting Panax notoginseng, the changes in soil saponins in pot experiments were examined by adding the different concentrations of root residues. The ultrastructures of the roots in the hydroponic experiment were observed. Results showed that the content of total saponins in soil declined and species increased with increasing time. In the hydroponic experiment, with the increase in time and concentration, the cell walls of Panax notoginseng roots thickened and cell mycelia appeared. In addition, the cells began to shrink or even break, and no complete organelles emerged in the cell structure. Results suggested that the chemical substances produced by decomposing fibrils may be another factor that causes the allelopathic autotoxicity of Panax notoginseng.
- Panax notoginseng /
- Residual root /
- Saponin components /
- Root tip /
- Autotoxicity

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参考文献(3)

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