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Forming Micro-and Nano-Plastics from Agricultural Plastic Films for Employment in Fundamental Research Studies

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Published on: July 27, 2022

A multi-omics study of polystyrene degradation.

Shijie Zhang¹, Chen Zhang², Ying Zhou³

¹School of Resources and Environmental Engineering, Shanghai Polytechnic University, Shanghai, 201209, China; School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China.

Journal of Environmental Management

|May 22, 2026

Summary

Microbial degradation of polystyrene (PS) is a promising green solution. Stenotrophomonas sp. SM313 utilizes multi-omics to reveal complex molecular pathways for PS breakdown, involving enzyme synthesis and energy metabolism.

Keywords:

Biodegradation Metabolic reprogramming Multi-omics integration Plastics Stress adaptation

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Area of Science:

Microbiology
Environmental Science
Biochemistry

Background:

Polystyrene (PS) persistence poses ecological challenges.
Microbial degradation offers a sustainable solution for plastic waste.
Molecular mechanisms of PS biodegradation are not fully understood.

Purpose of the Study:

Investigate the molecular mechanisms of polystyrene degradation by Stenotrophomonas sp. SM313.
Utilize multi-omics to understand microbial adaptive reprogramming.
Elucidate the metabolic pathways involved in PS biodegradation.

Main Methods:

Multi-omics analysis (whole-genome, transcriptomic, proteomic, metabolomic).
Material characterization of degraded polystyrene.
Pathway enrichment analysis.

Main Results:

Stenotrophomonas sp. SM313 demonstrated 4.53% PS mass reduction over 60 days.
Upregulation of ribosomal machinery, energy metabolism (oxidative phosphorylation), and stress response pathways observed.
PS degradation involves bifurcated pathways: ring-opening via benzoate pathways and side-chain degradation via beta-oxidation.

Conclusions:

Microbial degradation of PS is a complex, multi-enzyme process.
Stenotrophomonas sp. SM313 exhibits a coordinated molecular response for PS biodegradation.
This study provides a systems biology perspective on plastic biodegradation mechanisms.