Alleviation of Lead Toxicity by 5-Aminolevulinic Acid Is Related to Elevated Growth, Photosynthesis, and Suppressed Ultrastructural Damages in Oilseed Rape

Table 4

Effects of treatments of 5-aminolevulinic acid (ALA) (mg L⁻¹) and lead (Pb) (μM) on Pb contents in shoots and roots of Brassica napus cv. ZS 758.

ALA conc.	Pb conc.	Shoot (mg kg^−1 DW)	Root (mg kg^−1 DW)
0	0	0.34±0.01^e	0.65±0.03^d
	100	144.84±9.50^c	756.44±8.67^b
	400	461.79±13.02^a	2741.12±16.90^a
25	0	0.27±0.01^e	0.73±0.02^d
	100	88.58±7.14^d	226.35±13.14^c
	400	178.93±15.35^b	745.54±9.50^b

Values are the means of four replications ± SD. Variants are significant at 𝑃≤0.05.