A marine fungus Alternaria alternata FB1 degrades polypropylene
文献类型：期刊论文
| 作者 | Su, Zhenjie1,2,3,4; Fei, Fan1,2,3,4; Liu, Rui1,3,4; Sun, Chaomin1,2,3,4 |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2025-10-05 |
| 卷号 | 497页码:14 |
| 关键词 | Marine fungus Polypropylene Enzyme degradation Genetic engineering |
| ISSN号 | 0304-3894 |
| DOI | 10.1016/j.jhazmat.2025.139621 |
| 通讯作者 | Sun, Chaomin(sunchaomin@qdio.ac.cn) |
| 英文摘要 | Polypropylene (PP), a widely used plastic, is difficult to recycle, creating environmental challenges. Despite some microorganisms having been reported to degrade PP, their capabilities are limited and generally require pretreatment. In this study, we report a marine fungus, Alternaria alternata FB1, that degrades untreated pure PP. Integrated assays demonstrated the formation of hydroxyl and carbonyl functional groups, a 90 % reduction in crystallization peak height, and a 65 % decrease in weight-average molecular weight following fungal degradation. (E)-octadec-9-ene and nonadec-1-ene were identified as the main degradation products of PP by strain FB1. Transcriptomic analysis identified several potential PP-degrading enzymes, including a Baeyer-Villiger monooxygenase and a KatG catalase-peroxidase, whose activities were confirmed through in vitro assays. By combining gene knockout experiments to verify the functions of key degradation enzymes in vivo and transcriptomic analyses to predict the metabolic pathway of degradation products in strain FB1, we propose a comprehensive pathway for fungal degradation and utilization of PP for the first time. Our study offers significant potential for future research and industrial biodegradation applications. |
| WOS关键词 | MOLECULAR-WEIGHT ; BIODEGRADATION ; POLYETHYLENE ; ENZYMES ; MINERALIZATION ; POLYSTYRENE ; DEGRADATION ; BACTERIUM ; GUT |
| 资助项目 | Shandong Provincial Natural Science Foundation[ZR2024ZD49] ; Key Collaborative Research Program of the Alliance of International Science Organizations[ANSO-CR-KP-2022-08] ; Science and Technology Innovation Project of Laoshan Laboratory[2022QNLM030004-3] ; Science and Technology Innovation Project of Laoshan Laboratory[LSKJ202203103] ; NSFC Innovative Group Grant[42221005] ; Qingdao West Coast New District University Presidents Fund[E42424101N] ; Taishan Scholars Program[tstp20230637] ; Qingdao Natural Science Foundation[23-2-1-182-zyyd-jch] |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001595323600001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/203617]  |
| 专题 | 海洋研究所_实验海洋生物学重点实验室 |
| 通讯作者 | Sun, Chaomin |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res, Qingdao 266404, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 101408, Peoples R China 3.Qingdao Marine Sci & Technol Ctr, Lab Marine Biol & Biotechnol, Qingdao 266237, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Lab Expt Marine Biol, Qingdao 266404, Peoples R China |
| 推荐引用方式 GB/T 7714 | Su, Zhenjie,Fei, Fan,Liu, Rui,et al. A marine fungus Alternaria alternata FB1 degrades polypropylene[J]. JOURNAL OF HAZARDOUS MATERIALS,2025,497:14. |
| APA | Su, Zhenjie,Fei, Fan,Liu, Rui,&Sun, Chaomin.(2025).A marine fungus Alternaria alternata FB1 degrades polypropylene.JOURNAL OF HAZARDOUS MATERIALS,497,14. |
| MLA | Su, Zhenjie,et al."A marine fungus Alternaria alternata FB1 degrades polypropylene".JOURNAL OF HAZARDOUS MATERIALS 497(2025):14. |
入库方式： OAI收割
来源：海洋研究所
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