Both Zn biofortification and nutrient distribution pattern in cherry tomato plants are influenced by the application of ZnO nanofertilizer

Multifunctional Nanomaterials for Biofortification and Protection of Tomato Plants

“…To address this serious problem, the agronomic Zn biofortification has been explored to increase the Zn concentrations in grains or fruits. ,, Foliar application of conventional soluble forms (e.g., zinc sulfate and EDTA-Zn chelates) can cause leaf burning, so several applications at low dosages may be required to correct the Zn deficiency. , On the other hand, some studies indicated that the foliar application of zinc oxide nanoparticles (ZnO-NPs) seems to positively influence growth and yields of several plants (e.g., soybean, tomato, alfalfa, cucumber, peanuts, and green peas) , and increase the Zn content in several fruits and grains; − however, variable results between experiments and crops have been reported . In addition, ZnO-NPs can negatively affect plant growth and metabolism at different stages of development. , ZnO-NPs can have other potential adverse effects, including toxicity to nontarget organisms, accumulation in the food chain, and environmental pollution. , Therefore, nontoxic nanosystems for safer and more efficient agronomic fortification are required.…”

Interplay of metal-based nanoparticles with plant rhizosphere microenvironment: implications for nanosafety and nano-enabled sustainable agriculture

“…In acidic soils, 225 mg kg −1 of ZnO NPs inhibited plant growth and even lead to its death; while in alkaline soils, plants grew normally in all ZnO NP treatments. 170 Similarly, CuO NPs did not alter significantly plant root length in alkaline soil (pH = 8.3), but 300 mg kg −1 CuO NPs significantly reduced plant root length in acidic soil, which was closely related to the accelerated release of soluble metals by MNPs under acidic conditions. 171 Moghaddasi et al 63 found that under the addition of organic matter, the root dry weight of cucumber was not significantly different between the coated and uncoated ZnO NPs, but maximum root growth of the coated NPs was observed in the soil untreated with organic matter.…”

Nanoscale ZnO Improves the Amino Acids and Lipids in Tomato Fruits and the Subsequent Assimilation in a Simulated Human Gastrointestinal Tract Model

“…55 Foliar application of NMs could affect the accumulation of micronutrients by changing ion accumulation and ion transporter activities. 56 Almendros et al (2022) reported that the fruit B content of cherry tomato grown in acidic soil was significantly increased by 88% upon exposure to ZnO NPs (3 mg Zn/kg soil). 57 Medina-Velo et al (2017) found that ZnO NMs increase the stem B and Mn contents and the root S and Mg contents in kidney bean.…”

“…56 Almendros et al (2022) reported that the fruit B content of cherry tomato grown in acidic soil was significantly increased by 88% upon exposure to ZnO NPs (3 mg Zn/kg soil). 57 Medina-Velo et al (2017) found that ZnO NMs increase the stem B and Mn contents and the root S and Mg contents in kidney bean. 58 Zn, Fe, and B are all essential dietary trace elements with vital physiological roles in a variety of metabolic processes that collectively contribute to overall human health.…”