Determining Heterogeneous Contamination Impacts of Polystyrene Micro(Nano)Plastics and Cadmium on Growth and Biochemical Characteristics in Parsley Via a Split-Root System

Assessing heterogeneous pollution risks from polystyrene micro(nano)plastics and cadmium to physiology and biochemistry in parsley via a split-root system

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Researchers used a split-root system to study how polystyrene micro- and nanoplastics interact with cadmium to affect parsley growth under conditions mimicking real-world uneven soil contamination. They found that cadmium was the primary driver of root damage and oxidative stress, but these effects remained localized to the contaminated side, suggesting the plant can isolate damage. Excessive nanoplastics combined with cadmium on both sides of the root system triggered defense mechanisms that altered the plant's production of beneficial bioactive compounds.

Influences of microplastics alone and co-contaminated with cadmium on physiological responses of Chinese cabbage ( Brassica campestris L.), rhizosphere microbes and soil properties in soil

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Scientists tested how plastic pollution (microplastics) and cadmium, a toxic heavy metal, affect Chinese cabbage grown in contaminated soil, both matter because they can build up in crops we eat and impact human health. Surprisingly, small-to-moderate amounts of microplastics actually helped protect the cabbage from cadmium's harmful effects by changing soil chemistry and boosting helpful soil microbes, though this doesn't mean microplastic pollution is safe overall. This research shows the relationship between plastic pollution and toxic metals in soil is complicated, and more study is needed before we underst

Physiological and Biochemical Effects of Polystyrene Micro/Nano Plastics on Arabidopsis Thaliana

Effects of Polyethylene and Heavy Metal Cadmium on the Growth and Development of Brassica chinensis var. chinensis

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Pot experiments with Chinese cabbage showed that both cadmium and polyethylene microplastics reduced biomass, chlorophyll content, and root development, while the combination of the two stressors resulted in polyethylene partially mitigating cadmium's effects on growth — possibly by reducing cadmium bioavailability in soil. These results reveal complex interactions between microplastics and heavy metals in agricultural soils, with implications for predicting contamination effects on food crop safety.

Single and combined effects of secondary polyethylene microplastic on the growth of Pak choi and the soil microbiome composition

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Researchers found that secondary polyethylene microplastics (aged via weathering and mechanical stress) significantly inhibited Pak choi growth, caused oxidative damage to plant cells, and altered soil microbial composition, while showing antagonistic combined effects with DDT and naphthalene due to MP adsorption of co-contaminants. Agriculturally realistic aged PE microplastics harm food crops and disrupt the soil microbiome, with soil chemical properties changing in ways that could affect long-term agricultural productivity.