Sepúlveda G, Sánchez de Jiménez E
Biochemistry Department, Facultad de Química, UNAM, México D.F.
Biochem Biophys Res Commun. 1988 Jun 16;153(2):881-7. doi: 10.1016/s0006-291x(88)81178-1.
Polyamines are known to participate in the control of cell division. In the present report, the levels and distribution of polyamines in the embryonic tissues of maize seeds were studied to relate them to the reinitiation of cell division during seed germination. Results indicate higher contents of polyamines in scutellum than in axis tissues of dry seeds. After germination, larger increments of the three polyamines were obtained in axes, rather than in scutella. Seeds of low viability did not show putrescine increments after germination. It is suggested that spermidine and spermine are directly related to the germination process.
已知多胺参与细胞分裂的调控。在本报告中，研究了玉米种子胚组织中多胺的水平和分布，以将它们与种子萌发期间细胞分裂的重新启动联系起来。结果表明，干种子的盾片中多胺含量高于胚轴组织。萌发后，胚轴中三种多胺的增加量大于盾片。活力低的种子在萌发后腐胺没有增加。表明亚精胺和精胺与萌发过程直接相关。
