微生物降解邻苯二甲酸酯研究现状及展望

Current status and prospects of research on microbial degradation of phthalate esters

  • 摘要: 邻苯二甲酸酯(PAEs)作为一类广泛使用的塑化剂,因其环境持久性和生物毒性而受到全球关注。综述了PAEs在环境中的污染现状、降解途径以及微生物对PAEs的降解机制。结果显示:当前研究热点集中在PAEs降解菌筛选及其在不同环境条件下的降解效率,这些研究不仅揭示了PAEs的微生物降解机制,还为利用微生物修复PAEs污染提供了理论依据。此外,PAEs影响土壤中碳、氮、磷的循环,并对微生物群落的代谢多样性产生时效性影响。尽管当前研究已系统总结了单一菌株的PAEs降解潜力、菌群联合修复的协同效应以及相关降解基因的功能解析,但仍面临实验室条件与实际环境脱节、菌群稳定性不足及环境适应性机制不明等挑战。未来需通过构建功能模块化菌群,解析菌群-环境互作网络及开发原位动态监测技术,以突破现有瓶颈,推动微生物修复技术的实际应用。

     

    Abstract: Phthalic acid esters (PAEs), as widely used plasticizers, have attracted global attention for their environmental durability and biotoxicity. This review focuses on the current pollution status of PAEs in the environment, their degradation pathways, and the degradation mechanism of PAEs by microorganisms. The results show that current research is mainly focused on screening PAE-degradation bacteria and evaluating their degradation efficiency under different environmental conditions. These studies not only reveal the microbial degradation mechanism of PAEs, but also provide a theoretical basis for the utilization of microorganisms to remediate PAEs pollution. In addition, PAEs affect the circulation of carbon, nitrogen and phosphorus in soil and exert a time-sensitive effect on the metabolic diversity of microbial communities. Although current studies have systematically summarized the degradation potential of PAEs in a single strain, the synergistic effect of combined remediation by microbial communities, and the functional analysis of related degradation genes, there are still some challenges. These include disconnection between laboratory conditions and the actual environment, insufficient microbial community stability, and unclear environmental adaptability mechanisms. In the future, it is necessary to build functional modular microbial communities, analyze microbial community-environment interaction networks, and develop in situ dynamic monitoring technology to break the bottlenecks and promote the practical application of microbial repair technology.

     

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