Mn3O4 Nanoparticles Alleviate ROS‐Inhibited Root Apex Mitosis Activities to Improve Maize Drought Tolerance

. Overall, the results show that PMO can alleviate drought-inhibited cell mitosis activities via maintaining ROS (reactive oxygen species) homeostasis. In this study, it is not only shown that PMO can be a good nano-regulator candidate to improve maize drought tolerance, but also that PMO has potential to modulate plant cell mitosis activities.