2.4.1.215 additional information construction of enzyme OscZOG1-overexpression transgenic lines and knockout lines, phenotypes, overview. O-glucosides of cis-zeatin (cZOG) are increased significantly in shoots of the OscZOG1-overexpression transgenic rice line (OE-3) while no significant differences are found in the levels of transzeatin O-glucosides (tZOG) between wild-type and the overexpression transgenic line OE-3. In contrast, the amounts of cZOG are lower in shoots of the OscZOG1-RNAi transgenic line (Ri-1) comapred to the wild-type shoots. Levels of trans-zeatin and cis-zeatin are varied slightly among wild-type, the OscZOG1-RNAi transgenic line and OscZOG1-overexpression transgenic line 736599 2.4.1.215 additional information generation of transgenic rice lines by RNA interfering or overexpressing gene OscZOG1, encoding a putative zeatin-O-glucosyltransferase. The RNAi transgenic lines exhibit a higher plant height, whereas the plant height of the overexpression lines is reduced with respect to the wild-type seedlings when grown in liquid culture conditions in greenhouse for 2 weeks, drastic enhancement of tiller numbers in the RNAi transgenic lines. Overexpressing OscZOG1 leads to accumulation of cZOG in transgenic plants 759588