ArticleMicrobiome2023
Microbe-driven elemental cycling enables microbial adaptation to deep-sea ferromanganese nodule sediment fields.
Article in Microbiome, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed, 51 citations in OpenAlex.
- Widespread deep-sea microorganisms in subseafloor geochemical cycling.Frontiers in microbiology · 2026Article
- Non-proteinogenic β-alanine metabolism inApplied and environmental microbiology · 2025Article
- Vertically stratified microbial diversity and keystone species driving element cycling in the Magellan seamount sediments.Microbial genomics · 2025Article
- Genomic potential for mercury biotransformation in marine sediments across marginal slope to hadal zone.Nature communications · 2025Article
- Iron is an important influence of volcanic ash input on the evolution of deep-sea ecosystems.Microbiology spectrum · 2025Article
- Effect of Bacillus velezensis on the structure of the rhizosphere microbial community and yield of soybean.BMC plant biology · 2025Article
- Comparative Metagenomics Reveals Microbial Diversity and Biogeochemical Drivers in Deep-Sea Sediments of the Marcus-Wake and Magellan Seamounts.Microorganisms · 2025Article
- Article
- Particle partitioning and geography drive divergent microbial assembly and network connectivity in coastal South China Sea.Frontiers in microbiology · 2025Article
- Unveiling the significance of prokaryotic composition from ferromanganese crusts regarding the interlink between cobalt and vitamin BFrontiers in microbiology · 2025Article
- Deep-sea microbially influenced corrosion and biomineralization.Frontiers in microbiology · 2025Review
- Biodiversity, Distribution and Functional Differences of Fungi in Four Species of Corals from the South China Sea, Elucidated by High-Throughput Sequencing Technology.Journal of fungi (Basel, Switzerland) · 2024Article
- Evidence of dark oxygen production at the abyssal seafloor.Nature geoscience · 2024Article
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Authors and funding
10 authors at 5 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundFerromanganese nodule-bearing deep-sea sediments cover vast areas of the ocean floor, representing a distinctive habitat in the abyss. These sediments harbor unique conditions characterized by high iron concentration and low degradable nutrient levels, which pose challenges to the survival and growth of most microorganisms. While the microbial diversity in ferromanganese nodule-associated sediments has been surveyed several times, little is known about the functional capacities of the communities adapted to these unique habitats.
resultsSeven sediment samples collected adjacent to ferromanganese nodules from the Clarion-Clipperton Fracture Zone (CCFZ) in the eastern Pacific Ocean were subjected to metagenomic analysis. As a result, 179 high-quality metagenome-assembled genomes (MAGs) were reconstructed and assigned to 21 bacterial phyla and 1 archaeal phylum, with 88.8% of the MAGs remaining unclassified at the species level. The main mechanisms of resistance to heavy metals for microorganisms in sediments included oxidation (Mn), reduction (Cr and Hg), efflux (Pb), synergy of reduction and efflux (As), and synergy of oxidation and efflux (Cu). Iron, which had the highest content among all metallic elements, may occur mainly as Fe(III) that potentially functioned as an electron acceptor. We found that microorganisms with a diverse array of CAZymes did not exhibit higher community abundance. Instead, microorganisms mainly obtained energy from oxidation of metal (e.g., Mn(II)) and sulfur compounds using oxygen or nitrate as an electron acceptor. Chemolithoautotrophic organisms (Thaumarchaeota and Nitrospirota phyla) were found to be potential manganese oxidizers. The functional profile analysis of the dominant microorganisms further indicated that utilization of inorganic nutrients by redox reactions (rather than organic nutrient metabolism) is a major adaptive strategy used by microorganisms to support their survival in the ferromanganese nodule sediments.
conclusionsThis study provides a comprehensive metagenomic analysis of microbes inhabiting metal-rich ferromanganese nodule sediments. Our results reveal extensive redundancy across taxa for pathways of metal resistance and transformation, the highly diverse mechanisms used by microbes to obtain nutrition, and their participation in various element cycles in these unique environments. Video Abstract.
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