Deciphering microplastic ecotoxicology: impacts on crops and soil ecosystem functions

Nano-Iron Oxide (Fe3O4) Mitigates the Effects of Microplastics on a Ryegrass Soil–Microbe–Plant System

“…The observed result reflected the positive effect of nano-Fe 3 O 4 in mitigating the negative effects of MPs on plant Fe uptake and subsequent growth. Such positive effects can be attributed to (i) the strong adherence of nano-Fe 3 O 4 on the MPs surface which weakens MP's ecotoxicology on plants 37,50 and (ii) the positive effects of nano-Fe 3 O 4 in facilitating plant rhizosphere nutrient cycling 35 and increasing plant growth promoting microbes. 51 Photosynthesis is a key physiological process that is affected by different plant stresses.…”

“…For instance, the growth of romaine lettuce was found to decrease due to PE contamination at the rates of 0.005%, 0.025%, and 0.1% in the soil, although the impact of 0.1% was the greatest . A PE content of 1% in soil has been shown to negatively affect the above- and belowground compartments of wheat plants during both vegetative and reproductive growth . In a recent experiment aimed at investigating the effects of MPs on plant performance, PE and PVC each at 0.2% and 1% concentrations appeared to affect the growth and reproduction biomass of native and invasive Phytolacca species .…”

“…22 A PE content of 1% in soil has been shown to negatively affect the above-and belowground compartments of wheat plants during both vegetative and reproductive growth. 23 In a recent experiment aimed at investigating the effects of MPs on plant performance, PE and PVC each at 0.2% and 1% concentrations appeared to affect the growth and reproduction biomass of native and invasive Phytolacca species. 24 In addition, a 0.1% content of high-density PE in soil can reduce the total biomass of perennial ryegrass through the alteration of soil stability components such as pH, organic matter, and water-stable aggregates.…”