Autotoxicity in the cultivated medicinal herb Andrographis paniculata

作者：Hu, L; Xue, R R; Xu, C C; Zhang, Z Y; Zhang, G; Zeng, R S; Song, Y Y^*

来源：Allelopathy Journal, 2018, 45(2): 141-151.

DOI：10.26651/allelo.j/2018-45-2-1182

• Allelochemicals
• Andrographis paniculata
• autotoxicity
• HPLC
• phenolic compounds
• replanting problem
• seed germination
• seedling growth

To determine the autotoxicity in Andrographis paniculata, we prepared the aqueous extracts of leaves, stems and replanted soil to determine their autotoxicity. All extracts inhibited the seed germination and seedling growth at higher concentration. Using the HPLC, the Andrographolide, ferulic acid, vanillic acid, caffeic acid, syringic acid, p-hydroxybenzoic acid were detected in A. paniculata cultivated soils but not in uncultivated soils. In bioassay, the 5-phenolic compounds (ferulic acid, vanillic acid, caffeic acid, syringic acid, p-hydroxybenzoic acid) showed toxicity to seed germination and seedling growth of A. paniculata. Adding activated carbon to the growth substrate in pots significantly improved the growth of A. paniculata and enhanced the biomass and chlorophyll content.

• 出版日期2018-11
• 单位华南农业大学