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Updated: Sep 17, 2025

Measuring Phosphorus Release in Laboratory Microcosms for Water Quality Assessment

Measuring Phosphorus Release in Laboratory Microcosms for Water Quality Assessment

Published on: July 22, 2019

在湿地中,PFOS引起的动态和土壤微生物功能的改变

Bianhe Lu¹, Peifang Wang¹, Jing Hu²

¹Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China; College of Environment, Hohai University, Nanjing, 210098, People's Republic of China.

Journal of environmental management

|July 3, 2025

概括

perfluorooctanesulfonate (PFOS) 的污染严重破坏了湿地土壤中的循环和微生物功能. 高水平的PFOS降低了植物的吸收,并改变了微生物基因表达,这对营养转化至关重要.

科学领域:

环境化学环境化学
生态生态学生态生态学
微生物学微生物学

背景情况:

perfluorooctanesulfonate (PFOS) 是一种持久性污染物,具有已知的生态风险.
它对湿地生态系统中 (P) 等必需营养循环的具体影响尚不清楚.
对于植物和微生物生命至关重要,使其循环对于生态系统稳定至关重要.

研究的目的:

研究PFOS对湿地土壤中的动态的影响.
评估PFOS对与循环有关的土壤微生物功能的影响.
为了检查PFOS对Phragmites communis.根球的影响.

主要方法:

在不同的PFOS度下分析无机和有机形式.
使用qRT-PCR对与转化相关的微生物基因表达的量化.
超基因组测序以评估微生物社区的丰富性和多样性.
测量植物含量 (树枝和根).

主要成果:

高度的PFOS导致Phragmites communis.的树枝和根中的含量减少.
随着PFOS水平的增加,观察到可变 (NaHCO3-Pi) 的减少.
暴露于PFOS改变了根球土壤中的微生物群落结构和多样性.
关键的循环基因 (例如,phoD) 显示,尽管在高PFOS下丰富度增加,但转录水平降低.

结论:

在湿地生态系统中,PFOS显著破坏循环.
污染物损害了对转化至关重要的微生物功能.
研究结果强调新出现的污染物对营养循环和生态系统健康的生态风险.

关键词:

功能性基因调节功能性基因调节微生物群落组成微生物群落组成 perfluorooctanesulfonate 的使用情况的溶解化溶解化.植物微生物土壤相互作用.

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