ArticleThe ISME journal2014
Deep-sea hydrothermal vent Epsilonproteobacteria encode a conserved and widespread nitrate reduction pathway (Nap).
Article in The ISME journal, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.
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Who cites it
45 citing papers in PubMed, 94 citations in OpenAlex.
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- The chemosynthetic biofilm microbiome of deep-sea hydrothermal vents across space and time.Environmental microbiome · 2025Article
- Supplementation of plant fermentation carbon sources significantly enhances the abundance of ammonia-oxidizing genes and increases nitrogen removal in a municipal wastewater treatment plant.BMC microbiology · 2025Article
- Novel and diverse features identified in the genomes of bacteria isolated from a hydrothermal vent plume.Applied and environmental microbiology · 2025Article
- Metabolic redundancy and specialisation of novel sulfide-oxidizing Sulfurimonas and Sulfurovum along the brine-seawater interface of the Kebrit Deep.Environmental microbiome · 2025Article
- Hydrogen-dependent dissimilatory nitrate reduction to ammonium enables growth of Campylobacterota isolates.The ISME journal · 2025Article
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- Dominance of Sulfur-Oxidizing Bacteria,Biology · 2025Article
- Hydrodynamic flow and benthic boundary layer interactions shape the microbial community in Milos shallow water hydrothermal vents.Frontiers in microbiology · 2025Article
- Seafloor incubation experiments at deep-sea hydrothermal vents reveal distinct biogeographic signatures of autotrophic communities.FEMS microbiology ecology · 2024Article
- The Diversity and Metabolism of Culturable Nitrate-Reducing Bacteria from the Photic Zone of the Western North Pacific Ocean.Microbial ecology · 2023Article
- The Genome ofMicroorganisms · 2023Article
- Identification and examination of nitrogen metabolic genes in Lelliottia amnigena PTJIIT1005 for their ability to perform nitrate remediation.BMC genomics · 2023Article
- Transcriptome Analysis of Cyclooctasulfur Oxidation and Reduction by the Neutrophilic ChemolithoautotrophicAntioxidants (Basel, Switzerland) · 2023Article
- A Simple and Effective Method for Solid Medium Cultivation of Strictly Hydrogen- and Sulfur-oxidizing Chemolithoautotrophs Predominant in Deep-sea Hydrothermal Fields.Microbes and environments · 2023Article
- Article
- Sequestration and efflux largely account for cadmium and copper resistance in the deep-sea Nitratiruptor sp. SB155-2 (phylum Campylobacterota).Environmental microbiology · 2022Article
- Adaptations to high pressure of Nautilia sp. strain PV-1, a piezophilic Campylobacterium (aka Epsilonproteobacterium) isolated from a deep-sea hydrothermal vent.Environmental microbiology · 2022Article
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Authors and funding
6 authors at 4 institutions in 3 countries.
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Abstract
Despite the frequent isolation of nitrate-respiring Epsilonproteobacteria from deep-sea hydrothermal vents, the genes coding for the nitrate reduction pathway in these organisms have not been investigated in depth. In this study we have shown that the gene cluster coding for the periplasmic nitrate reductase complex (nap) is highly conserved in chemolithoautotrophic, nitrate-reducing Epsilonproteobacteria from deep-sea hydrothermal vents. Furthermore, we have shown that the napA gene is expressed in pure cultures of vent Epsilonproteobacteria and it is highly conserved in microbial communities collected from deep-sea vents characterized by different temperature and redox regimes. The diversity of nitrate-reducing Epsilonproteobacteria was found to be higher in moderate temperature, diffuse flow vents than in high temperature black smokers or in low temperatures, substrate-associated communities. As NapA has a high affinity for nitrate compared with the membrane-bound enzyme, its occurrence in vent Epsilonproteobacteria may represent an adaptation of these organisms to the low nitrate concentrations typically found in vent fluids. Taken together, our findings indicate that nitrate reduction is widespread in vent Epsilonproteobacteria and provide insight on alternative energy metabolism in vent microorganisms. The occurrence of the nap cluster in vent, commensal and pathogenic Epsilonproteobacteria suggests that the ability of these bacteria to respire nitrate is important in habitats as different as the deep-sea vents and the human body.
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