| Phytotoxic metabolites from of Stellera chamaejasme | |
| Department | 甘肃省天然药物重点实验室 |
Yan ZQ(燕志强) ; Yang JY(杨甲月); Liu Q(刘权); Jin H(金辉); Xu R(徐蕊); Qin B(秦波)
| |
| 2011 | |
| Conference Name | 第二届植物代谢国际会议 |
| Source Publication | 第二届植物代谢国际会议论文集 |
| Funding Organization | Chinese Society for Plant Biology;National Key Laboratory for Plant Molecular Genetics;Institute of Plant Physiology ＆ Ecology, Shanghai Institutes for Biological Sciences, CAS |
| Pages | 99 |
| Conference Date | 2011-06-30 |
| Conference Place | 山东青岛 |
| Abstract | Pervasive plants are a widespread problem but the mechanisms used by these plants to become preponderant are often unknown. The production of phytotoxic natural products by them is one mechanism by which these species may become successful competitors [1]. Stellera chamaejasme L. is a poisonous plant species widely spreading constantly in China western grassland in recent years in case that the serious meadow degradation occurs [2, 3]. Here, we conducted a bioactivity-driven fractionation of root extracts from S. chamaejasme L., and structurally characterized flavonoids and coumarins. We show that these metabolites are phytotoxic but affect plants in different ways, either inducing overall plant necrosis or reducing root branching and elongation. GUS staining analyses of Arabidopsis thaliana Dr5::GUS transgenic line treated by the biflavonoids purified from roots of S. chamaejasme L. show that the endogenous auxin levels at the root tips are largely reduced. The reduction of the accumulation and redistribution influence of endogenous auxin are proposed as a critical factor that resulted in the inhibition of seedling growth and disruption of root system architecture in A. thaliana. |
| Subject Area | 分析化学与药物化学 |
| Funding Project | 药用植物化感作用研究组 |
| Language | 英语 |
| Document Type | 会议论文 |
| Identifier | http://ir.licp.cn/handle/362003/2240 |
| Collection | 中科院西北特色植物资源化学重点实验室/甘肃省天然药物重点实验室 |
| Corresponding Author | Qin B(秦波) |
| Recommended Citation GB/T 7714 | Yan ZQ,Yang JY,Liu Q,et al. Phytotoxic metabolites from of Stellera chamaejasme[C],2011:99. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Phytotoxic metabolit（262KB） | 开放获取 | License | View Download | |||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment