ArticleThe ISME journal2021
Aerobic and anaerobic iron oxidizers together drive denitrification and carbon cycling at marine iron-rich hydrothermal vents.
Article in The ISME journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.
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Who cites it
31 citing papers in PubMed, 94 citations in OpenAlex.
- Phylogenomic and metabolic insights into iron reduction metabolism in the genusMicrobial genomics · 2026Article
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- Modeling neutrophilic iron-oxidizing bacteria: a KBase narrative resource describing newly integrated metabolic reactions.Microbiology resource announcements · 2026Article
- Microbial communities and biomineralization potential within mountain permafrost of the Devaux ice cave in the Central Pyrenees.Scientific reports · 2026Article
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- Interspecies hydrogen transfer between cyanobacteria and symbiotic bacteria drives nitrogen loss.Nature communications · 2025Article
- Bacterial nitrite production oxidizes Fe(II) bioremediating acidic abandoned coal mine drainage.Applied and environmental microbiology · 2025Article
- Metabolic Potential and Microbial Diversity of Late Archean to Early Proterozoic Ocean Analog Hot Springs of Japan.Microbes and environments · 2025Article
- Unique microbial communities in ancient volcanic ash layers within deep marine sediments are structured by the composition of iron phases.Frontiers in microbiology · 2025Article
- Microbial acidification by N, S, Fe and Mn oxidation as a key mechanism for deterioration of subsea tunnel sprayed concrete.Scientific reports · 2024Article
- The dynamic history of prokaryotic phyla: discovery, diversity and division.International journal of systematic and evolutionary microbiology · 2024Review
- Linking Zetaproteobacterial diversity and substratum type in iron-rich microbial mats from the Lucky Strike hydrothermal field (EMSO-Azores observatory).Applied and environmental microbiology · 2024Article
- Microbial metabolic potential of hydrothermal vent chimneys along the submarine ring of fire.Frontiers in microbiology · 2024Article
- "ISME communications · 2024Article
- Microbial community response to hydrocarbon exposure in iron oxide mats: an environmental study.Frontiers in microbiology · 2024Article
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- Putative novel hydrogen- and iron-oxidizing sheath-producing Zetaproteobacteria thrive at the Fåvne deep-sea hydrothermal vent field.mSystems · 2023Article
- Gallionellaceae in rice root plaque: metabolic roles in iron oxidation, nutrient cycling, and plant interactions.Applied and environmental microbiology · 2023Article
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
Abstract
In principle, iron oxidation can fuel significant primary productivity and nutrient cycling in dark environments such as the deep sea. However, we have an extremely limited understanding of the ecology of iron-based ecosystems, and thus the linkages between iron oxidation, carbon cycling, and nitrate reduction. Here we investigate iron microbial mats from hydrothermal vents at Lō'ihi Seamount, Hawai'i, using genome-resolved metagenomics and metatranscriptomics to reconstruct potential microbial roles and interactions. Our results show that the aerobic iron-oxidizing Zetaproteobacteria are the primary producers, concentrated at the oxic mat surface. Their fixed carbon supports heterotrophs deeper in the mat, notably the second most abundant organism, Candidatus Ferristratum sp. (uncultivated gen. nov.) from the uncharacterized DTB120 phylum. Candidatus Ferristratum sp., described using nine high-quality metagenome-assembled genomes with similar distributions of genes, expressed nitrate reduction genes narGH and the iron oxidation gene cyc2 in situ and in response to Fe(II) in a shipboard incubation, suggesting it is an anaerobic nitrate-reducing iron oxidizer. Candidatus Ferristratum sp. lacks a full denitrification pathway, relying on Zetaproteobacteria to remove intermediates like nitrite. Thus, at Lō'ihi, anaerobic iron oxidizers coexist with and are dependent on aerobic iron oxidizers. In total, our work shows how key community members work together to connect iron oxidation with carbon and nitrogen cycling, thus driving the biogeochemistry of exported fluids.
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