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Review: Poly(butylene adipate-co-terephthalate) biodegradable microplastics accelerated the decomposition of amino sugar in soil — R1/PR2

2025 Score: 38 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Sha Chang, Fengxiao Zhu, Fengxiao Zhu, Sha Chang, Yifan Zhao, Yifan Zhao, Yifan Zhao, Huan He, Aoyu Zhou Aoyu Zhou Yifan Zhao, Aoyu Zhou Sha Chang, Sha Chang, Sha Chang, Sha Chang, Sha Chang, Sha Chang, Sha Chang, Sha Chang, Sha Chang, Sha Chang, Sha Chang, Sha Chang, Ya Li, Ya Li, Sha Chang, Sha Chang, Sha Chang, Aoyu Zhou Aoyu Zhou Aoyu Zhou Aoyu Zhou Aoyu Zhou Sha Chang, Sha Chang, Sha Chang, Aoyu Zhou Huan He, Aoyu Zhou Aoyu Zhou Yifan Zhao, Aoyu Zhou Ya Li, Ya Li, Yifan Zhao, Ya Li, Aoyu Zhou Ya Li, Fengxiao Zhu, Yifan Zhao, Aoyu Zhou Ya Li, Yifan Zhao, Ya Li, Ya Li, Sha Chang, Fengxiao Zhu, Aoyu Zhou Sha Chang, Huan He, Fengxiao Zhu, Fengxiao Zhu, Fengxiao Zhu, Fengxiao Zhu, Fengxiao Zhu, Fengxiao Zhu, Fengxiao Zhu, Shiyin Li, Fengxiao Zhu, Shiyin Li, Shiyin Li, Ya Li, Shiyin Li, Shiyin Li, Shiyin Li, Shiyin Li, Huan He, Huan He, Huan He, Huan He, Huan He, Huan He, Huan He, Huan He, Huan He, Huan He, Huan He, Huan He, Huan He, Shiyin Li, Huan He, Huan He, Huan He, Aoyu Zhou

Summary

Researchers found that poly(butylene adipate-co-terephthalate) biodegradable microplastics accelerate the decomposition of amino sugars — nitrogen-containing soil organic matter components — through a priming effect on soil organic matter turnover. The findings suggest that even biodegradable microplastics can disrupt soil nitrogen cycling with implications for agricultural soil health.

Biodegradable microplastics (BMPs) are reported to have a priming effect on soil organic matter (SOM) decomposition. However, their impact on the turnover of specific SOM components, especially nitrogen (N)-containing ones, remains unclear. Given the wide use of poly(butylene adipate-co-terephthalate) (PBAT) in agricultural films and the crucial role of amino sugar N-acetylglucosamine (NAG) in microbial necromass, the effects of PBAT BMPs on NAG decomposition in soil were investigated. We found that PBAT accelerated the decomposition of NAG, with specific effects varying considerably in the two soils examined (Yingtan soil and Nanjing soil). Microbial biomass and metagenomic sequencing analyses revealed that, in Yingtan soil with low available N (6 mg kg-1), PBAT promoted the incorporation of NAG into living microbial biomass, and increased the abundance of NAG phosphorylation and isomerization genes (amgK and glmM). In Nanjing soil with high available N (127 mg kg-1), chitin synthase gene (CHS1) abundance decreased and there was no significant change in microbial biomass, indicating the extra NAG decomposed in PBAT-treated soils might mainly enter the glycolysis pathway to generate energy rather than synthesizing new cells. Potential PBAT degraders enriched were also NAG degraders, suggesting carbon-rich PBAT selected for microbes that could obtain N from amino sugars.

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