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应用生态学报 ›› 1999, Vol. 10 ›› Issue (2): 206-208.

• 研究论文 • 上一篇    下一篇

彩色豆马勃子实体的化感作用及其化感物质的分离鉴定

曾任森1, 骆世明1, 石木标1, 涂从勇1, 曾强2, 谭惠芬2   

  1. 1. 华南农业大学, 广州 510642;
    2. 南开大学元素有机化学研究所, 天津 300071
  • 收稿日期:1998-11-25 修回日期:1999-01-04 出版日期:1999-03-25 发布日期:1999-03-25
  • 通讯作者: 曾任森,男,34岁,硕士,助研,从事植物化学生态学研究,发表论文14篇.
  • 基金资助:

    国家自然科学基金(39770136)、广东省自然科学基金(960426)、国家教委博士点基金和南开大学元素有机化学国家重点实验室资助项目.

Allelopathy of Pisolithus tinctorius fruitbodies and isolation and identification of allelochemicals

Zeng Rensen1, Luo Shiming1, Shi Mubiao1, Tu Congyong1, Zeng Qiang2, Tan Huifen2   

  1. 1. South China Agricultural University, Guangzhou 510642;
    2. Nankai University, Tianjin 300071
  • Received:1998-11-25 Revised:1999-01-04 Online:1999-03-25 Published:1999-03-25

摘要: 彩色豆马勃能与松树、桉树形成外生菌根,研究其次生代谢产物对植物的影响具有重要意义。用水、乙醇和丙酮抽提彩色豆马勃的子实体,发现这些抽提物对稗草和水稻幼苗生长有极显着的抑制作用。丙酮抽提物对狼尾草和油菜幼苗生长有抑制作用。子实体的丙酮抽提物用硅胶柱色谱分离得到2个纯化合物,可鉴定为豆马勃内酯(Pisolactone)和麦角甾醇。该2个化合物在400μg·ml-1浓度下均显着抑制稗草幼苗根生长。豆马勃内酯在100μg·ml-1浓度下仍然极显着抑制稗草幼苗根生长.

关键词: 彩色豆马勃, 化感作用, 豆马勃内酯, 麦角甾醇

Abstract: Pisolithus tinctorius can form ectomycorrhizae with pine and eucalyptus.The aqueous,ethanol and acetone extracts from its fruitbodies significantly inhibited the seedling growth of Echinochloa crusgalli and Oryza sativa, and acetone extract at concentration of 0.0125g·ml-1 inhibited the seedling growth of Pennisetum alopecuroides and Brassica campastris. Two pure compounds were isolated from the fruitbodies of P.tinctorius by silica gel column chromatography, and were identified as pisolactone and ergosterol. Ergosterol significantly inhibited the root growth of E.crusgalli seedlings at concentration of 400μg·ml-1,and pisolactone could do it at concentration of 100μg·ml-1.

Key words: Pisolithus tinctorius, Allelopathy, Pisolactone, Ergosterol