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在南方热带生长的椰子树的果实中含有一种能促进植物细胞分裂的物质。1941年至1944年 VanOverbeek 等就发现可以从椰子果汁中提取出这种物质,经过实验证明可以促进植物细胞的分裂生长。1952年 Mauney 等证明:从椰子果肉(胚孔)中提取的物质比果汁中的更好;利用胡罗卜块根作组织培养的试验结果:15天可比原物增加380%,而对照只增加120%。单位活力是以15/100毫升最高,相当于在100毫升的培养基中加入0.5克这种提取的物质;这
The fruit of tropical coconut trees in the south contains a substance that promotes plant cell division. From 1941 to 1944, Van Overbeek et al. Discovered that this substance can be extracted from coconut juice and has been experimentally proved to promote the division and growth of plant cells. In 1952, Mauney et al. Demonstrated that the substance extracted from the coconut pulp (embryo hole) is better than the fruit juice; the test of tissue culture using the carrot root tuber: increased by 380% in 15 days compared with the control, but increased by 120 %. Unit activity is highest at 15/100 ml, which is equivalent to adding 0.5 g of this extracted material to 100 ml of medium;