Table 1. Statistics of serration numbers of the 7^th and 8^th leaves of wild type and pi4kγ5–1 plants.

Data are presented as means ± SD (n = 30) and statistically analyzed by Student’s t test (**, P< 0.01, compared to those of wild type).

	No. of serrations
	7th leaf	8th leaf
wild type	2.5±0.7	3.5±1.0
pi4kγ5–1	5.9±1.2**	7.3±1.0**