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. 2021 Mar 18;11(3):771. doi: 10.3390/nano11030771

Figure 3.

Figure 3

Biochemical parameters of the roots of watered (blue bars) or drought (brown bars) maize plants grown at different conditions (Ctl—no addition of graphene oxide nanosheets, no bacterial inoculation; R—no addition of graphene oxide nanosheets, inoculation with Rhizobium strain E20-8; GO—addition of graphene oxide nanosheets, no bacterial inoculation; R + GO—addition of graphene oxide nanosheets and inoculation with Rhizobium strain E20-8). (a) Soluble carbohydrates (CH); (b) insoluble carbohydrates; (c) proline; (d) protein; (e) electron transport system activity (ETS); (f) superoxide dismutase activity (SOD); (g) lipid peroxidation (LPO); (h) principal coordinates ordination of biochemical parameters in watered and drought plants at different conditions (Ctl, R, GO and R + GO). Values are means of three replicates + standard error. Different uppercase letters indicate significant differences (p < 0.05) among conditions in watered plants, different lowercase letters indicate significant differences among conditions in drought plants, and asterisks indicate significant differences between drought and watered plants for the same condition.