Anatomical and Biochemical Traits Related to Blue Leaf Coloration of Selaginella uncinata

Table 4

Metal ion contents of the three leaf types.

Sample name	Metal ion content(mg/kg)
	Cd	Mg	Ca	Mn	Fe	Cu	Zn	Al
Blue S. uncinata leaves	0.04 ± 0.01B	4311.71 ± 340.96B	598.88 ± 41.69A	115.12 ± 8.63A	421.11 ± 22.45B	8.62 ± 0.63B	55.04 ± 4.30A	592.45 ± 14.47B
Red S. uncinata leaves	0.03 ± 0.00A	8134.86 ± 227.00C	919.65 ± 23.63B	139.09 ± 3.70B	308.02 ± 8.97A	5.61 ± 1.23A	58.00 ± 3.26A	316.21 ± 8.44A
S. kraussiana leaves	0.04 ± 0.00AB	3464.87 ± 77.35A	1152.27 ± 19.28C	386.18 ± 10.13C	583.86 ± 7.83C	6.20 ± 0.61A	117.93 ± 1.69B	806.34 ± 4.39C

Note: metal ion content = mean value ± standard deviation (n = 3); A, B, and C show the different significant differences at level in SNK test.