STAFFORD D W, IVERSON R M
Science. 1964 Feb 7;143(3606):580-1. doi: 10.1126/science.143.3606.580.
Mitotic apparatus isolated at metaphase from sea urchin eggs, and placed in sea water containing leucine-carbon-14 after fertilization, has been shown by radioautographs to have taken up carbon-14 in such a way that it is not removable by repeated washing, by "chasing" with leucine-carbon-12, or by treatment with hot trichloroacetic acid.
从海胆卵中期分离出的有丝分裂器,在受精后置于含有亮氨酸 - 碳 - 14的海水中,放射自显影片显示它摄取碳 - 14的方式是,通过反复洗涤、用亮氨酸 - 碳 - 12“追踪”或用热的三氯乙酸处理都无法去除。