期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 613, 期 -, 页码 398-408出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.scitotenv.2017.09.062
关键词
Elements cycling; Biotic; Abiotic; Extracellular electron transfer; Energy conservation; Anthropogenic activity
资金
- National Natural Science Foundation of China [41571240, 41571130063]
- Ningbo science and technology people-benefit project [2017C50009]
- CAS Pioneer Hundred Talents Program [Y4L1051F40]
Sulfate-reducing prokaryotes (SRP) represent a diverse group of heterotrophic and autotrophic microorganisms that are ubiquitous in anoxic habitats. In addition to their important role in both sulfur and carbon cycles, SRP are important biotic and abiotic regulators of a variety of sulfur-driven coupled biogeochemical cycling of elements, including: oxygen, nitrogen, chlorine, bromine, iodine and metal(loid) s. SRP gain energy form most of the coupling of element transformation. Once sulfate-reducing conditions are established, sulfide precipitation becomes the predominant abiotic mechanism of metal(loid) s transformation, followed by co-precipitation between metal(loid) s. Anthropogenic contamination, since the industrial revolution, has dramatically disturbed sulfur-driven biogeochemical cycling; making sulfur coupled elements transformation complicated and unpredictable. We hypothesise that sulfur might be detoxication agent for the organic and inorganic toxic compounds, through the metabolic activity of SRP. This review synthesizes the recent advances in the role of SRP in coupled biogeochemical cycling of diverse elements. (C) 2017 Elsevier B.V. All rights reserved.
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