Beryllium Stress-Induced Modifications in Antioxidant Machinery and Plant Ultrastructure in the Seedlings of Black and Yellow Seeded Oilseed Rape

Table 1

Effects of different concentrations of beryllium (Be) on root length (cm), stem height, and biomass accumulation (g per 10 seedlings) in leaf, stem, and root tissues of 6-day-old seedlings of two Brassica napus cultivars.

Cultivar	Be conc. μM	Shoot height	Root length	Leaf fresh weight	Leaf dry weight	Stem fresh weight	Stem dry weight	Root fresh weight	Root dry weight
ZS 758	0	4.64 ± 0.20	4.40 ± 0.19	1.45 ± 0.10	0.067 ± 0.002	0.48 ± 0.07	0.03 ± 0.001	0.51 ± 0.08	0.05 ± 0.002
	100	4.42 ± 0.15	4.10 ± 0.17	1.22 ± 0.09	0.054 ± 0.002	0.40 ± 0.06	0.02 ± 0.001	0.42 ± 0.07	0.04 ± 0.002
	200	3.95 ± 0.16	3.50 ± 0.17	0.86 ± 0.08	0.035 ± 0.001	0.32 ± 0.06	0.02 ± 0.0006	0.28 ± 0.06	0.02 ± 0.001
	400	3.21 ± 0.13	2.53 ± 0.15	0.58 ± 0.07	0.017 ± 0.001	0.21 ± 0.05	0.01 ± 0.0001	0.18 ± 0.05	0.01 ± 0.001
Zheda 622	0	4.62 ± 0.20	4.44 ± 0.19	1.43 ± 0.10	0.065 ± 0.002	0.51 ± 0.07	0.03 ± 0.001	0.47 ± 0.08	0.05 ± 0.005
	100	4.32 ± 0.18	3.90 ± 0.16	1.16 ± 0.09	0.050 ± 0.002	0.38 ± 0.07	0.02 ± 0.0008	0.38 ± 0.06	0.04 ± 0.002
	200	3.86 ± 0.16	3.27 ± 0.13	0.78 ± 0.07	0.030 ± 0.0015	0.29 ± 0.06	0.02 ± 0.001	0.24 ± 0.05	0.02 ± 0.002
	400	3.08 ± 0.14	2.39 ± 0.13	0.46 ± 0.06	0.010 ± 0.001	0.18 ± 0.04	0.0087 ± 0.0001	0.14 ± 0.04	0.01 ± 0.001

Means ± SD, . Values followed by different letters within a column are significantly different by Duncan’s multiple range test ().