Zinc Oxide Nanoparticles Enhance the Tolerance and Remediation Potential of Bacillus spp. against Heavy Metal Stress

Figure 5

Effect of ZnO NPs (0, 5, 10, 15, 20, 25 mg/L) on (a) malondialdehyde (MDA) and (b) hydrogen peroxide (H₂O₂) of Bacillus cereus and (c) malondialdehyde (MDA) and (d) hydrogen peroxide (H₂O₂) content of Lysinibacillus macroides under heavy metal (Pb, Cd, Cr, and Cu) stress. Error bars showed means of standard error (± S.E) of three replicates () followed by different alphabetic letters showing statistically significant at 5% probability level (ANOVA and Duncan’s multiple range test).