Table 4 The observed positive effects of MnNPs on plants
From: Nanoparticles based on essential metals and their phytotoxicity
Plant | Particle size (nm) | Particle concentration | Comment | Observed effect | References |
|---|---|---|---|---|---|
Vigna radiata | MnNPs | 50, 100, 500, 1000 mg L−1 | Leaf and root enzyme extract was analyzed for use as nanofertilizer | Nitrogen uptake, its assimilation, and metabolism was increased after MnNPs soil application | [82] |
Vigna radiata | MnNPs | 50, 100, 500, 1000 mg L−1 | Leaf and root enzyme extract was analyzed. Chloroplasts from leaves were isolated and analyzed for their level of photophosphorylation and oxygen evolution | MnNP-treated chloroplasts showed greater photophosphorylation, oxygen evolution with respect to control and MnSO4-treated chloroplasts. Positive effects on root and shoot elongation was observed | [57] |
Lactuca sativa | MnOx NPs 5–15 nm | 0.25, 0.5, 5, 10, mg L−1 | Overall, the data suggests that MnOx NPs can be used as an Mn fertilizer (better than their soluble or bulk solid counterparts) for crop growth improvement | MnOx NPs specifically improved the growth of lettuce seedlings by enhancing root elongation | [83] |