Subseafloor Biosphere Linked to Hydrothermal Systems: TAIGA Concept

  title={Subseafloor Biosphere Linked to Hydrothermal Systems: TAIGA Concept},
  author={Jun-ichiro Ishibashi and Kyoko Okino and Michinari Sunamura},
  journal={Subseafloor Biosphere Linked to Hydrothermal Systems},
Introduction: concept of TAIGA.- Geochemical constraints on potential biomass sustained by subseafloor water-rock interactions.- Microbial cell densities, community structures, and growth in the hydrothermal plumes of subduction hydrothermal systems.- Systematics of distributions of various elements between ferromanganese oxides and seawater from natural observation, thermodynamics, and structures.- Evaluating hydrothermal system evolution using geochronological dating and biological diversity… 
The microbiomes of deep-sea hydrothermal vents: distributed globally, shaped locally
  • G. Dick
  • Environmental Science
    Nature Reviews Microbiology
  • 2019
The challenges and opportunities that vent ecosystems provide for microbial life and their relationship to biogeography are explored, including their relationships with underlying geology and hydrothermal geochemistry.
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Microbial Diversity and Connectivity in Deep-Sea Sediments of the South Atlantic Polar Front
It is concluded that ultraslow spreading ridges create a unique environmental setting in sedimented segments without distinct hydrothermal activity, and play an important role in shaping microbial communities and promoting diversity, but also in connectivity among deep-sea habitats.
Endemicity of the cosmopolitan mesophilic chemolithoautotroph Sulfurimonas at deep-sea hydrothermal vents
This is the first report on MLSA of deep-sea hydrothermal vent Epsilonproteobacteria, which is indicative of allopatric speciation, and Sulfurimonas may possess a higher dispersal capability compared with deep-SEA hydroThermal vent thermophiles.
Hydrogen-rich hydrothermal environments in the Hadean ocean inferred from serpentinization of komatiites at 300 °C and 500 bar
Serpentinization of Al-depleted and Al-undepleted komatiites (and olivine for comparison) was experimentally characterized under high-temperature and high-pressure conditions of 300 °C and 500 bar to