Academic Journal
Προβολή σε EDS
Συνδεδεμένο Πλήρες Κείμενο

Thiosulfate drives vanadium natural attenuation in oligotrophic mine tailings: Insights from DNA-SIP and metagenomics.

Λεπτομέρειες βιβλιογραφικής εγγραφής
Τίτλος: Thiosulfate drives vanadium natural attenuation in oligotrophic mine tailings: Insights from DNA-SIP and metagenomics.
Συγγραφείς: Zhang M; Guangdong Provincial Research Centre for Environment Pollution Control and Remediation Materials, Department of Ecology, College of Life Science and Technology, Jinan University, China., Sun H; National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, China., Ren Y; College of Food Science and Technology, Hunan Agricultural University, Changsha, 410128, China. Electronic address: renyouhua@hunau.edu.cn., Chen K; Guangdong Provincial Research Centre for Environment Pollution Control and Remediation Materials, Department of Ecology, College of Life Science and Technology, Jinan University, China., Yan G; National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, China., Li B; National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, China., Huang Y; National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, China., Tan Z; National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, China., Sun W; National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, China. Electronic address: wmsun@soil.gd.cn.
Πηγή: Environmental pollution (Barking, Essex : 1987) [Environ Pollut] 2026 Aug 15; Vol. 403, pp. 128368. Date of Electronic Publication: 2026 May 20.
Τύπος έκδοσης: Journal Article
Γλώσσα: English
Στοιχεία περιοδικού: Publisher: Elsevier Applied Science Publishers Country of Publication: England NLM ID: 8804476 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-6424 (Electronic) Linking ISSN: 02697491 NLM ISO Abbreviation: Environ Pollut Subsets: MEDLINE
Imprint Name(s): Original Publication: Barking, Essex, England : Elsevier Applied Science Publishers, c1987-
Ιατρικοί όροι (MeSH): Thiosulfates*/metabolism , Thiosulfates*/chemistry , Vanadium*/metabolism , Vanadium*/analysis , Water Pollutants, Chemical*/metabolism , Water Pollutants, Chemical*/analysis , Mining*, Bacteria/metabolism ; Bacteria/genetics ; Metagenomics ; Biodegradation, Environmental ; Oxidation-Reduction
Περίληψη: Vanadium (V) accumulation in mine tailing ponds represents a persistent contamination source, posing severe risks to the surrounding ecosystems. Microbial V(V) reduction represents a key pathway of V detoxification, immobilization and attenuation. While thiosulfate (S2O32-), a prevalent byproduct in tailing ponds, is thermodynamically capable of driving V(V) reduction, the occurrence of the S2O32--driven V(V) reduction and its underpinning microbial mechanisms remain elusive. Here, we investigated the potential of S2O32- to fuel V(V) natural attenuation in the tailing sediment. Microcosm experiments demonstrated that S2O32- amendment significantly accelerated V(V) reduction rates by 1.8-fold compared to thiosulfate-free controls, confirming a stoichiometric coupling between V(V) reduction and S2O32- oxidation. Pseudomonas, Symbiobacterium and Actinotalea were proposed as the active autotrophic taxa responsible for this coupling process using DNA-stable isotope probing (SIP) combined with metagenomics. Metabolic reconstruction revealed a resilient microbial network based on functional redundancy. These key taxa harbored denitrification-related reductases (NarGHI, NapAB, and NirS/K) and respiratory electron-transfer components (cytochrome c oxidases), together with distinct thiosulfate oxidation genes including thiosulfate dehydrogenase (TsdA/DoxD) and sulfurtransferases (TST/GlpE), indicating potential pathways for the S2O32--driven V(V) reduction process. These findings expand our understanding of the coupled S-V biogeochemical cycle and highlight the intrinsic natural attenuation capacity of tailing environments. This work provides a mechanistic basis for assessing the environmental fate and mobility of vanadium in oligotrophic habitats.
(Copyright © 2026 Elsevier Ltd. All rights reserved.)
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
Contributed Indexing: Keywords: Natural attenuation; Stable isotope probing; Tailing ponds; Thiosulfate oxidation; Vanadate reduction
Substance Nomenclature: 0 (Thiosulfates)
00J9J9XKDE (Vanadium)
0 (Water Pollutants, Chemical)
Entry Date(s): Date Created: 20260519 Date Completed: 20260611 Latest Revision: 20260611
Update Code: 20260612
DOI: 10.1016/j.envpol.2026.128368
PMID: 42155841
Βάση Δεδομένων: MEDLINE
Περιγραφή
ISSN:1873-6424
DOI:10.1016/j.envpol.2026.128368