Cell Cycle Kinetic Analysis in the Cortical Regions of the Lentil Primary Root During Germination

作     者：喻富根 庞延军 赵剑春 王强 YU Fu-Gen;PANG Yan-Jun;ZHAO Jian-Chun;WANG Qiang

作者机构：南京大学生命科学学院生物科学与技术系南京210093 

出 版 物：《Acta Botanica Sinica》 (Acta Botanica Sinica（植物学报：英文版）)

年 卷 期：2002年第44卷第7期

页      面：764-770页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 071009[理学-细胞生物学] 

基　　金：教育部优秀年轻教师基金 教育部留学回国人员科研启动基金~~ 

主　　题：cell cycle primary root germination immunohistochemistry Lens culinaris 

摘      要：Cell cycle kinetic activity in the cortical cells of the lentil (Lens culinaris Me-die. cv. Verte du Puy) primary root during germination was examined both temporally and spatially. Immunohistochemical and cytological evidence indicated that DNA replication and cell division started in the cortical cells of tire lentil primary root after around 13 and 17 h of imbibition, respectively. The first cells in DNA synthesis and the First mitotic figures all appeared in the cortical cells about I mm front the root-cap junction, but these divided cells had synthesized their DNA during the maturity of seed instead of during germination. The kinetic pattern of activity of the first cell cycle showed that these cells were not activated synchronously, but re-entered the cell cycle in turn depending on their places in the root tip, However, the adjacent cells partially synchronously proceeded their cell cycle.