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| DOI | 10.1016/j.eti.2023.103524 |
| Micro-biophysical interactions at bacterium-mineral interfaces determine potassium dissolution | |
| 发表日期 | 2024 |
| ISSN | 2352-1864 |
| 起始页码 | 33 |
| 卷号 | 33 |
| 英文摘要 | Bacteria-mineral interactions are widespread in the Earth's critical zones. They play essential roles in soil ecosystems, e.g., minerals weathering, soil formation, soil nutrient cycling and climate change. Employing a microscopy experimental system, we quantified how microscale interactions between Pseudomonas aeruginosa PAO1 and potassium feldspar influence mineral dissolution and potassium bioavailability. The results revealed that P. aeruginosa PAO1 tended to adhere onto the mineral solid-liquid interfaces facilitated by the bacterial flagellar- and pilusmediated interfacial motilities, which are often highly hindered by the mineral rough interfaces typically under hydration stress circumstances. The surface-attached bacterial life-form likely intensified potassium feldspar dissolution and thereby enhanced potassium releasing. As a consequence, it promoted bacterial population proliferation which further reinforced localized interactions between P. aeruginosa PAO1 and minerals, accelerating potassium release. In addition, the bacterial biofilm formation and potassium release peaked at 30 h after incubation, with a maximum available potassium concentration of 19.96 mg l - 1 and a ratio of public potassium contribution of 47.0%. These cell-scale quantitative estimates on bacteria-minerals interactions provide new insights into mechanistic understanding of microbial functionalities in regulating the biogeochemical processes of soil elements. |
| 英文关键词 | Bacterial motility; Biofilm; Nutrient bioavailability; Potassium feldspar; Pseudomonas aeruginosa |
| 语种 | 英语 |
| WOS研究方向 | Biotechnology & Applied Microbiology ; Engineering ; Environmental Sciences & Ecology |
| WOS类目 | Biotechnology & Applied Microbiology ; Engineering, Environmental ; Environmental Sciences |
| WOS记录号 | WOS:001157357600001 |
| 来源期刊 | ENVIRONMENTAL TECHNOLOGY & INNOVATION
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/294717 |
| 作者单位 | China Agricultural University; Zhengzhou University; Chinese Academy of Sciences; Institute of Subtropical Agriculture, CAS; Hefei University of Technology; China Agricultural University |
| 推荐引用方式 GB/T 7714 | . Micro-biophysical interactions at bacterium-mineral interfaces determine potassium dissolution[J],2024,33. |
| APA | (2024).Micro-biophysical interactions at bacterium-mineral interfaces determine potassium dissolution.ENVIRONMENTAL TECHNOLOGY & INNOVATION,33. |
| MLA | "Micro-biophysical interactions at bacterium-mineral interfaces determine potassium dissolution".ENVIRONMENTAL TECHNOLOGY & INNOVATION 33(2024). |
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