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作 者 ：陶诗清,吴先琪

期 刊 ：生态学报 1985年 5卷 1期 页码：7~14

关键词：苦豆子；

摘 要 ：苦豆子茎叶水提取液对小麦幼芽、幼根的生长表现出明显的抑制作用。水溶液含有苦豆碱,槐定和槐果碱。实验表明,当这些生物碱作用于小麦幼苗时,引起强烈的抑制作用,结果如下:(1)苦豆子水提取液对小麦幼苗的生长有强烈的抑制作用,对幼芽的最低抑制浓度为5％,对幼根的最低抑制浓度为0.1％。(2)薄层层析实验表明,水溶液中苦豆碱、槐定和槐果碱为主要抑制成分,它们可被小麦幼根吸收,但不能传入幼芽中。(3)苦豆碱的抑制作用大于槐定和槐果碱。它们的最低抑制浓度分别为8.6×10~(-5) M、2.0×10~(-3)和2.0×10~(-3)至8.1×10~(-4)M。3种生物碱对幼根的抑制作用大于对幼芽的抑制作用。(4)根据含量测定,在相同浓度作用下,苦豆碱在小麦幼根根尖中的含量均比槐定和槐果碱高,表明苦豆碱容易被小麦幼根吸收。同时,苦豆碱的毒性大于槐定和槐果碱。

Abstract:Aqueous solution of the leaves and stems of Sophora alopecuroides L. has obvious inhibition to the sprouts and roots growth of wheat (T. aestivum) seedling. Aqueous solution contains the following alkaloids as aloperine, sopho-ridine and sophocarpine. We found by the experiments that the alkaloids when applied to wheat seedling cause a striking growth inhibition. The results are as follows:1. Aqueous solution of the leaves and stems of S. alopecuroidcs L.hasa strong inhibition to wheat seedlings. The lowest...

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