气候变化领域集成服务门户(CCPortal): Micro-biophysical interactions at bacterium-mineral interfaces determine potassium dissolution

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DOI	10.1016/j.eti.2023.103524
	Micro-biophysical interactions at bacterium-mineral interfaces determine potassium dissolution
	Han, Miao; Zhu, Xiaoyan; Ruan, Chujin; Wu, Hanqing; Chen, Guowei; Zhu, Kun; Liu, Ying; Wang, Gang
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
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/294718
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	Han, Miao,Zhu, Xiaoyan,Ruan, Chujin,et al. Micro-biophysical interactions at bacterium-mineral interfaces determine potassium dissolution[J],2024,33.
APA	Han, Miao.,Zhu, Xiaoyan.,Ruan, Chujin.,Wu, Hanqing.,Chen, Guowei.,...&Wang, Gang.(2024).Micro-biophysical interactions at bacterium-mineral interfaces determine potassium dissolution.ENVIRONMENTAL TECHNOLOGY & INNOVATION,33.
MLA	Han, Miao,et al."Micro-biophysical interactions at bacterium-mineral interfaces determine potassium dissolution".ENVIRONMENTAL TECHNOLOGY & INNOVATION 33(2024).