The changes of morphosis of nucleus, mitochondrion and Golgi body in cortical cells were earlier than in pericycle cells.

• 根的皮层细胞中细胞核、线粒体和高尔基体的形态结构变化时间均早于中柱细胞,且细胞核变形、染色质凝聚并边缘化、线粒体与高尔基体外膜结构变化程度也明显大于中柱细胞。