洋紫荆幼苗凝集素含量分布的研究

豆科植物的种子富含蛋白质，是动物和人类食物蛋白的重要来源，但是豆科植物种子中凝集素的含量一般也较高，而凝集素被认为是植物防止动物食用的一种防御蛋白［１］，因此对豆科植物凝集素的研究在生态学和营养学上都具有重要的意义．我们对洋紫荆（Ｂａｕｈｉｎｉａ　ｖａｒｉｅｇａｔａＬ）的种子及幼苗各器官中凝集素的分布状况进行了初步的研究．１材料和方法 采集成熟的洋紫荆种子，晒干，挑选大小一致、籽粒饱满者备用．１．１洋紫荆种子凝集素的分离纯化 １００ ｇ种子磨粉，用 １０００ ｍＬ ０．１４ ｍｏｌ／Ｌ ＮａＣｌ分两次抽…

DISTRIBUTION OF LECTIN IN THE SEED AND YOUNG SEEDLING OF BAUHINIA VARIEGATA L.

The seed and young seedling of Bauhinia variegata have the same lectin. Most of lectin in the young seedlings (7 to 35 days old) distribute in its cotyledon. The amount of root lectin in 7 days old seedling is rather higher, but there is a sharp decrease between the day 7 and day 14. The lectin in stem and leaf is low. During the first three weeks, the total amount of lectin in seedlings keeps a high level, but there is a sudden decrease between the day 21 and day 28.