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

Table 2

Effects of different concentrations of beryllium (Be) on chlorophyll contents [mg g⁻¹ (f.m.)] and leaf total soluble proteins (TSP) [mg g⁻¹ (f.m.)] in cotyledons of 6-day-old seedlings of two Brassica napus cultivars.

Cultivar	Be conc. μM	Chlorophyll a	Chlorophyll b	Carotenoid	TSP
ZS 758	0	35.78 ± 2.37	65.84 ± 2.96	47.70 ± 2.65	2.44 ± 0.03
	100	31.65 ± 2.27	55.72 ± 2.50	43.44 ± 2.77	2.28 ± 0.02
	200	23.64 ± 1.36	33.43 ± 1.66	31.49 ± 2.42	2.02 ± 0.03
	400	10.58 ± 1.07	19.57 ± 0.83	19.73 ± 1.90	1.97 ± 0.01
Zheda 622	0	37.5 ± 1.73	69.82 ± 2.81	51.74 ± 2.81	2.39 ± 0.03
	100	29.66 ± 1.84	53.07 ± 2.81	41.19 ± 2.65	2.25 ± 0.02
	200	18.30 ± 1.17	28.46 ± 1.23	28.76 ± 2.15	2.07 ± 0.02
	400	8.44 ± 1.13	13.73 ± 0.83	17.71 ± 1.49	1.85 ± 0.02

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