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Bridging the knowledge gap: From poly(butylene adipate-co-terephthalatebutylene) degradation to CO2-generating mineralization under the synergistic effect of bacteria and fungi

文献类型： 外文期刊

作者： Wang, Yue 1 ; Liu, Qi 1 ; Xie, Chang-Hong 1 ; Zhao, Ruo-Tong 4 ; Tang, Qiu-Xiang 5 ; Han, Dong-Fei 6 ; Xia, Yi-Ning 7 ; Cui, Ji-Xiao 1 ; Yan, Chang-Rong 1 ; He, Wen-Qing 1 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Key Lab Prevent & Control Residual Pollut Agr Film, Minist Agr & Rural Affairs, 12 Zhongguancun South St, Beijing 100081, Peoples R China

2.Chinese Acad Agr Sci, Inst Western Agr, 195 Ningbian East Rd, Changji 831100, Peoples R China

3.State Key Lab Efficient Utilizat Agr Water Resourc, Beijing 100081, Peoples R China

4.China Agr Univ, Coll Resources & Environm Sci, 2 Yuanmingyuan West Rd, Beijing 910013, Peoples R China

5.Xinjiang Agr Univ, Coll Agr, Engn Res Ctr Cotton, Minist Educ, 311 Nongda East Rd, Urumqi 830052, Peoples R China

6.Suzhou Univ Sci & Technol, Sch Environm Sci & Engn, 99 Xuefu Rd, Suzhou 215009, Peoples R China

7.Chinese Acad Agr Sci, Inst Food Sci & Technol, 2 Yuanmingyuan West Rd, Beijing 100193, Peoples R China

关键词： Poly (butylene adipate-co-terephthalate); Degradation intermediates; Soil bacteria; Soil fungi; Microbial synergistic degradation

期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：11.3； 五年影响因子：12.4 ）

ISSN： 0304-3894

年卷期： 2025 年 494 卷

页码：

收录情况： SCI

摘要： Poly(butylene adipate-co-terephthalate) (PBAT) is a promising polymer with excellent mechanical properties and biodegradability. However, knowledge gaps between its degradation and mineralization processes in soil hampers its environmental impact and application potential. In this study, we elucidated the degradation process of PBAT, starting with the degradation of high-molecular-weight polymers into 30 intermediates, before ultimately mineralized into CO2. Bacteria and fungi drove the degradation and mineralization of these intermediates. We discovered that PBAT was synergistically degraded by combinations of 27 bacterial and fungal biomarkers rather than by single biomarkers dominated by Bacteroidota, Acidobacteriota, and Ascomycota. These combinations of related functional genes perform various functions at every stage of PBAT degradation, including breaking down molecular structures, degrading intermediates, and mineralization. Bacterial biomarkers showed greater diversity than fungal biomarkers in degrading PBAT. Our findings provide useful insights into the degradation of PBAT in soil and a foundation for systematically evaluating and controlling the environmental behavior and safety of PBAT in soil.

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