Fig. 7
From: Physio-biochemical and ultrastructural impact of (Fe3O4) nanoparticles on tobacco
Thick leaf sections of Nicotiana tabacum control and (Fe3O4) NPs -treated plants. Micrograph images of control plant (a). 5 nm (Fe3O4) NPs-treated plants with 3, 10, and 30 mg/L (b, c, and d, respectively). 10 nm (Fe3O4) NPs-treated plants with 3, 10, and 30 mg/L (e, f, and g, respectively). 20 nm (Fe3O4) NPs-treated plants with 3, 10, and 30 mg/L (h, i, and j, respectively). Upper epidermis (UE), palisade parenchyma layer (PP), spongy parenchyma layer (S), lower epidermis (LE). Bar equals 0.04 mm