作　　者： ; ; ; ;

机构地区： 广东药学院中药学院

出　　处： 《现代中药研究与实践》 2011年第3期5-7,共3页

摘　　要： 目的研究穿心莲的化感作用,为GAP栽培管理提供依据。方法以表面皿培养法试验穿心莲根际土壤浸提液及穿心莲内酯对照品溶液对穿心莲种子及三叶鬼针草种子萌发的抑制作用;以HPLC法对穿心莲根际土壤浸提液进行了分析鉴定。结果穿心莲根际土壤浸提液及穿心莲内酯对照品溶液均能显著抑制三叶鬼针草和穿心莲种子的萌发,其抑制作用随着浓度的增大而增强;结果表明,穿心莲内酯是其根际土壤浸提液中的一主要成分。结论穿心莲在其生长过程中释放了化感物质进入了其根际土壤,对穿心莲和其他植物产生化感作用,穿心莲内酯为其中的主要化感物质之一。 Objective To investigate allelopathy of Andrographis paniculata （Burm.f.） Nees for its GAP management. Methods With watch glass culture, the inhibitory effects of andrographlide and the rhizosphere extract ofAndrographis paniculata on seed germination of the herb itself and Bidens pilosa were conducted, and with HPLC method, the main constituents of the rhizosphere extract were analysed. Results The results showed that both of andrographlide and the rhizosphere extract had significant inhibitory effects on the germinations of Bidens pilosa seeds and itself; the effects strengthened with increasing of their concentrations. Andrographlide is one kind of main constituents in the rhizosphere extract indicated by HPLC analysis. Conclusion In the growth period, Andrographis paniculata release some alleochemicals into the soil, and andrographlide is one of the main allelochemical.

关 键 词： 穿心莲 穿心莲内酯 化感作用 种子萌发

领　　域： [农业科学] [农业科学]