Responses of antioxidant enzymes and key resistant substances in perennial ryegrass (Lolium perenne L.) to cadmium and arsenic stresses

Table 1 Cd and As contents in perennial ryegrass under different treatments

Treatment	Cultivars	Cd contents (mg kg⁻¹)			As contents (mg kg⁻¹)
Treatment	Cultivars	Shoot	Root	TF_Cd	Shoot	Root	TF_As
Control	DPB	0.43 ± 0.10 h	0.49 ± 0.11i	0.88	0.46 ± 0.10e	1.13 ± 0.06 g	0.41
	WNS	0.42 ± 0.07 h	0.22 ± 0.09i	1.91	0.00 ± 0.00e	0.58 ± 0.20 h	0.00
	YY	0.47 ± 0.06 h	0.29 ± 0.05i	1.62	0.01 ± 0.01e	2.05 ± 0.14 g	0.00
	ML	0.50 ± 0.01 h	0.25 ± 0.05i	2.00	0.00 ± 0.00e	0.53 ± 0.03 h	0.00
3 mg kg⁻¹ Cd	DPB	11.91 ± 0.38d	66.33 ± 1.27e	0.18	0.00 ± 0.00e	0.92 ± 0.11 h	0.00
	WNS	9.49 ± 0.46e	66.25 ± 1.98e	0.14	0.07 ± 0.01e	1.73 ± 0.17 g	0.04
	YY	28.33 ± 0.61a	98.96 ± 1.69b	0.29	0.00 ± 0.00e	0.78 ± 0.02 h	0.00
	ML	20.16 ± 1.15c	128.04 ± 3.50a	0.16	0.00 ± 0.00e	0.68 ± 0.10 h	0.07
120 mg kg⁻¹As	DPB	0.33 ± 0.06 h	1.00 ± 0.06i	0.33	5.59 ± 0.54a	51.14 ± 0.50a	0.11
	WNS	0.11 ± 0.03 h	2.76 ± 0.06hi	0.04	4.74 ± 0.20b	32.09 ± 0.66d	0.15
	YY	0.73 ± 0.15 h	2.06 ± 0.27i	0.35	2.86 ± 0.17c	34.80 ± 0.51c	0.08
	ML	0.233 ± 0.09 h	6.64 ± 0.53 h	0.04	4.16 ± 0.10b	21.10 ± 0.77f	0.20
3 mg kg⁻¹Cd + 120 mg kg⁻¹As	DPB	9.33 ± 0.18e	82.01 ± 3.619c	0.11	5.00 ± 0.34ab	41.53 ± 0.98b	0.12
	WNS	4.11 ± 0.20 g	27.77 ± 0.35 g	0.15	4.39 ± 0.04b	20.76 ± 1.10f	0.21
	YY	23.58 ± 1.34b	71.02 ± 0.52d	0.33	2.06 ± 0.27d	18.80 ± 0.60f	0.08
	ML	7.38 ± 0.21f	49.60 ± 0.05f	0.15	2.80 ± 0.40c	27.14 ± 0.35e	0.15

Note: Data in the table are mean ± SE; Different letters in the same column indicate significant differences at P < 0.05, n = 3. The same as below

ISSN: 1471-2229