Fig. 6
From: Physio-biochemical and ultrastructural impact of (Fe3O4) nanoparticles on tobacco
Transmission electron micrographs of Nicotiana tabacum root cortical cells of control and (Fe3O4) NPs -treated plants. 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). NPs (Arrow), Mitochondria (M), cell wall (CW), small vacuoles (V)