期刊
COMMUNICATIONS EARTH & ENVIRONMENT
卷 3, 期 1, 页码 -出版社
SPRINGERNATURE
DOI: 10.1038/s43247-022-00642-z
关键词
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资金
- Office of Biological and Environmental Research [DE-AC02-05CH11231, DE-AC05-76RL01830]
- Nessling Foundation [201700273, 201800502]
- Svensk-OEsterbottniska Samfundet r.f. [18/0604]
- European Regional Development Fund via the Interreg Botnia-Atlantica program
- Swedish Research Council Formas [2018-00760]
- Geological Survey of Sweden [36-1878/2017]
- Swedish Research Council [2018-05973]
- Swedish Research Council infrastructure project Biodiversity Atlas Sweden (VR) [2017-00688]
- marine strategic research environment EcoChange (Formas)
- Swedish Research Council [2017-00688] Funding Source: Swedish Research Council
- Formas [2018-00760] Funding Source: Formas
- Forte [2018-00760] Funding Source: Forte
- Vinnova [2018-00760] Funding Source: Vinnova
This study revealed distinct microbial communities and activities in various stages of acid sulfate soils, with Gallionella and Sulfuricella dominating the community during the conversion process.
Acid sulfate soils release metal laden, acidic waters that affect the environment, buildings, and human health. In this study, 16S rRNA gene amplicons, metagenomes, and metatranscriptomes all demonstrated distinct microbial communities and activities in the unoxidized potential acid sulfate soil, the overlying transition zone, and uppermost oxidized actual acid sulfate soil. Assembled genomes and mRNA transcripts also suggested abundant oxidized acid sulfate soil populations that aligned within the Gammaproteobacteria and Terracidiphilus. In contrast, potentially acid tolerant or moderately acidophilic iron oxidizing Gallionella and sulfur metabolizing Sulfuricella dominated the transition zone during catalysis of metal sulfide oxidation to form acid sulfate soil. Finally, anaerobic oxidation of methane coupled to nitrate, sulfate, and ferric reduction were suggested to occur in the reduced parent sediments. In conclusion, despite comparable metal sulfide dissolution processes e.g., biomining, Gallionella and Sulfuricella dominated the community and activities during conversion of potential to actual acid sulfate soils.
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