Home / Journals / PHYTON / Vol.90, No.6, 2021
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The extensive use of nanomaterials (e.g., zinc oxide nanoparticles: ZnO NPs) may affect the growth and development of plants. Our study found that increased ZnO NPs concentrations (1) increased the density of brown spots and chlorosis on the leaf surface, (2) inhibited root growth, (3) stimulated the production of reactive oxygen species, (4) affected either positively or negatively the activity of various enzymes, (5) increased the contents of malondialdehyde and proline, and (6) affected the expression levels of six stress-related genes on barley seedlings exposed to ZnO NPs stress. As a result of such stress, the growth and development of barley seedlings was reduced.
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