Abstract: The relative activity of ATPase, β-GPase and P-NPPase were different in the pollen tube, vegetative nucleus and generative cell at various stages of devcloping gametophyte of Camellia reticulata Lindl. in vitro. The ATPase activiffy was particularly intense in the pollen grain, while the activity of β-GPase and P-NPPase were only localized on the intine and around the germinal aperture at the initial stage of the germination. After the germination, the activity of both enzymes were show intensely in the tube and top growth region in particular.

Key words: cytochemical, localization, triphosphatase, camellia