Immunofluorescence localization experiment in maize root tip showed that there are large amount of bright red granule-like fluorescence in the cells of root tip (calyptrogen), and weak or no such fluorescence in the other cells.

• 根尖免疫荧光实验进一步直接的表明在玉米根冠细胞中存在大量明亮的红色颗粒状荧光，而在别的部位没有发现这种颗粒。