ArticleScientific reports2017
Novel arsenic-transforming bacteria and the diversity of their arsenic-related genes and enzymes arising from arsenic-polluted freshwater sediment.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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18 citing papers in PubMed, 123 citations in OpenAlex.
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- Arsenotrophic Achromobacter aegrifaciens strains isolated from arsenic contaminated tubewell water and soil sources shared similar genomic potentials.BMC microbiology · 2024Article
- Genetic Basis ofLife (Basel, Switzerland) · 2023Article
- Host-adaptive traits in the plant-colonizing Pseudomonas donghuensis P482 revealed by transcriptomic responses to exudates of tomato and maize.Scientific reports · 2023Article
- Negative Impacts of Arsenic on Plants and Mitigation Strategies.Plants (Basel, Switzerland) · 2023Review
- Connections between endoplasmic reticulum stress-associated unfolded protein response, mitochondria, and autophagy in arsenic-induced carcinogenesis.Seminars in cancer biology · 2021Review
- Culture-dependent study of arsenic-reducing bacteria in deep aquatic sediments of Bengal Delta.Environmental science and pollution research international · 2021Article
- Engineering Biological Electron Transfer and Redox Pathways for Nanoparticle Synthesis.Bioelectricity · 2021Article
- Evolutionary, genomic, and biogeographic characterization of two novel xenobiotics-degrading strains affiliated withHeliyon · 2021Article
- Niche partitioning in the Rimicaris exoculata holobiont: the case of the first symbiotic Zetaproteobacteria.Microbiome · 2021Article
- Effects ofFrontiers in microbiology · 2021Article
- Assessing the Plant Growth Promoting and Arsenic Tolerance Potential of Bradyrhizobium japonicum CB1809.Environmental management · 2020Article
- Ample Arsenite Bio-Oxidation Activity in Bangladesh Drinking Water Wells: A Bonanza for Bioremediation?Microorganisms · 2019Article
- Genomic Analysis ofInternational journal of molecular sciences · 2019Article
- Arsenic Uptake, Toxicity, Detoxification, and Speciation in Plants: Physiological, Biochemical, and Molecular Aspects.International journal of environmental research and public health · 2018Review
- Adaptions of Lichen Microbiota Functioning Under Persistent Exposure to Arsenic Contamination.Frontiers in microbiology · 2018Article
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Authors and funding
11 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Bacteria are essential in arsenic cycling. However, few studies have addressed 16S rRNA and arsenic-related functional gene diversity in long-term arsenic-contaminated tropical sediment. Here, using culture-based, metagenomic and computational approaches, we describe the diversity of bacteria, genes and enzymes involved in AsIII and AsV transformation in freshwater sediment and in anaerobic AsIII- and AsV-enrichment cultures (ECs). The taxonomic profile reveals significant differences among the communities. Arcobacter, Dechloromonas, Sedimentibacter and Clostridium thermopalmarium were exclusively found in ECs, whereas Anaerobacillus was restricted to AsV-EC. Novel taxa that are both AsV-reducers and AsIII-oxidizers were identified: Dechloromonas, Acidovorax facilis, A. delafieldii, Aquabacterium, Shewanella, C. thermopalmarium and Macellibacteroides fermentans. Phylogenic discrepancies were revealed among the aioA, arsC and arrA genes and those of other species, indicating horizontal gene transfer. ArsC and AioA have sets of amino acids that can be used to assess their functional and structural integrity and familial subgroups. The positions required for AsV reduction are conserved, suggesting strong selective pressure for maintaining the functionality of ArsC. Altogether, these findings highlight the role of freshwater sediment bacteria in arsenic mobility, and the untapped diversity of dissimilatory arsenate-reducing and arsenate-resistant bacteria, which might contribute to arsenic toxicity in aquatic environments.
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