ArticleFrontiers in microbiology2016
Diversity and Metabolic Potentials of Subsurface Crustal Microorganisms from the Western Flank of the Mid-Atlantic Ridge.
Article in Frontiers in microbiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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23 citing papers in PubMed, 36 citations in OpenAlex.
- Dissolution of Fe(III)-rich basaltic glass in microbial cultures of iron-reducing microorganisms.Frontiers in microbiology · 2026Article
- Identifying potential nutrient acquisition mechanisms for long-term survival: adaptive evolution ofFrontiers in microbiology · 2025Article
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- The subseafloor crustal biosphere: Ocean's hidden biogeochemical reactor.Frontiers in microbiology · 2024Review
- Genomic insights into versatile lifestyle of three new bacterial candidate phyla.Science China. Life sciences · 2022Article
- Microbial Abundance and Diversity in Subsurface Lower Oceanic Crust at Atlantis Bank, Southwest Indian Ridge.Applied and environmental microbiology · 2021Article
- Molting Alters the Microbiome, Immune Response, and Digestive Enzyme Activity in Mud Crab (mSystems · 2021Article
- Multiple carbon incorporation strategies support microbial survival in cold subseafloor crustal fluids.Science advances · 2021Article
- Basalt-Hosted Microbial Communities in the Subsurface of the Young Volcanic Island of Surtsey, Iceland.Frontiers in microbiology · 2021Article
- The Deep Rocky Biosphere: New Geomicrobiological Insights and Prospects.Frontiers in microbiology · 2021Review
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- Ecology of Subseafloor Crustal Biofilms.Frontiers in microbiology · 2019Article
- Deep Microbial Colonization in Saponite-Bearing Fractures in Aged Basaltic Crust: Implications for Subsurface Life on Mars.Frontiers in microbiology · 2019Article
- Hemolymph Microbiomes of Three Aquatic Invertebrates as Revealed by a New Cell Extraction Method.Applied and environmental microbiology · 2018Article
- A dynamic microbial community with high functional redundancy inhabits the cold, oxic subseafloor aquifer.The ISME journal · 2018Article
- Metagenomics Reveals Microbial Diversity and Metabolic Potentials of Seawater and Surface Sediment From a Hadal Biosphere at the Yap Trench.Frontiers in microbiology · 2018Article
- Low Energy Subsurface Environments as Extraterrestrial Analogs.Frontiers in microbiology · 2018Review
- An efficient strategy usingHeliyon · 2017Article
- Independent Shifts of Abundant and Rare Bacterial Populations across East Antarctica Glacial Foreland.Frontiers in microbiology · 2017Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Deep-sea oceanic crust constitutes the largest region of the earth's surface. Accumulating evidence suggests that unique microbial communities are supported by iron cycling processes, particularly in the young (<10 million-year old), cool (<25°C) subsurface oceanic crust. To test this hypothesis, we investigated the microbial abundance, diversity, and metabolic potentials in the sediment-buried crust from "North Pond" on western flank of the Mid-Atlantic Ridge. Three lithologic units along basement Hole U1383C were found, which typically hosted ∼10(4) cells cm(-3) of basaltic rock, with higher cell densities occurring between 115 and 145 m below seafloor. Similar bacterial community structures, which are dominated by Gammaproteobacterial and Sphingobacterial species closely related to iron oxidizers, were detected regardless of variations in sampling depth. The metabolic potentials of the crust microbiota were assayed by metagenomic analysis of two basalt enrichments which showed similar bacterial structure with the original sample. Genes coding for energy metabolism involved in hydrocarbon degradation, dissimilatory nitrate reduction to ammonium, denitrification and hydrogen oxidation were identified. Compared with other marine environments, the metagenomes from the basalt-hosted environments were enriched in pathways for Fe(3+) uptake, siderophore synthesis and uptake, and Fe transport, suggesting that iron metabolism is an important energy production and conservation mechanism in this system. Overall, we provide evidence that the North Pond crustal biosphere is dominated by unique bacterial groups with the potential for iron-related biogeochemical cycles.
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