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The effects of diverse microplastics on adzuki bean (Vigna angularis) growth and physiologic properties

Environmental Geochemistry and Health 2024 6 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 55 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Xiaomei Yang Rong Liang, Xiaomei Yang Rong Liang, Rong Liang, Rong Liang, Rong Liang, Xiaomei Yang Rong Liang, Xiaomei Yang Rong Liang, Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Feihu Sun, Feihu Sun, Xiaomei Yang Rong Liang, Xiaomei Yang Feihu Sun, Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Feihu Sun, Xiaomei Yang Hongquan Liu, Hongquan Liu, Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Hongquan Liu, Hongquan Liu, Xinxin Wang, Xinxin Wang, Xinxin Wang, Hongquan Liu, Xiaomei Yang Hongquan Liu, Xiaomei Yang Xinxin Wang, Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang Xiaomei Yang

Summary

Researchers tested the effects of three types of microplastics at different concentrations on adzuki bean growth and found that all types caused some damage, with biodegradable polylactic acid having the strongest negative impact on plant biomass. Higher microplastic concentrations significantly reduced chlorophyll content and triggered antioxidant stress responses. The study suggests that even supposedly eco-friendly biodegradable plastics can harm crop plants when they accumulate in soil.

Polymers

PE PLA PVC

Globally, microplastic pollution of soil ecosystems poses a major risk. The early studies found that the impact of microplastics on different plants could vary depending on the type of microplastic, the mass concentration or the plant species. This study investigated the effect of 3 mass concentrations (0.1%, 1%, and 2.5%) and 3 types of microplastics (PE MPs, PLA MPs, and PVC MPs) on adzuki bean biomass, root traits, Chlorophyll content and antioxidant enzymes. According to our findings, all microplastics had an impact on biomass, but PLA MPs had the strongest inhibitory effect. The high mass concentration of microplastics had a significant influence on chlorophyll content. Adzuki beans exhibited varying degrees of damage upon exposure to microplastics, but they were able to withstand the oxidative stress brought on by PE MPs by increasing the activity of antioxidant enzymes (SOD and POD). Comparing the adverse effects of PE MPs on adzuki beans to those of PLA MPs and PVC MPs, principal component analysis and membership function value analysis revealed that the former had fewer impacts. Disparities in the observed effects may be attributed to variations in the properties of microplastics. Subsequent investigations into the mechanisms underlying microplastic toxicity need a more comprehensive exploration.

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