Hydrothermal vents supporting persistent plumes and microbial chemoautotrophy at Gakkel Ridge (Arctic Ocean) [PDF]
Frontiers in MicrobiologyHydrothermal vents emit hot fluids enriched in energy sources for microbial life. Here, we compare the ecological and biogeochemical effects of hydrothermal venting of two recently discovered volcanic seamounts, Polaris and Aurora of the Gakkel Ridge, in
Gunter Wegener +2 more
exaly +9 more sources
Fluid flow stimulates chemoautotrophy in hydrothermally influenced coastal sediments [PDF]
Communications Earth & Environment, 2022 Fluid flow associated with coastal hydrothermal vents can stimulate carbon fixation via chemoautotrophy and influence microbial community composition, suggest in situ incubation experiments under varied flow regimes near Milos, Greece.
Stefan M Sievert +2 more
exaly +5 more sources
Chemoautotrophy in subzero environments and the potential for cold-adapted Rubisco [PDF]
Applied and Environmental MicrobiologyThe act of fixing inorganic carbon into the biosphere is largely facilitated by one enzyme, Rubisco. Beyond well-studied plants and cyanobacteria, many bacteria use Rubisco for chemolithoautotrophy in extreme environments on Earth. Here, we characterized
Alexander L Jaffé +2 more
exaly +6 more sources
Relative Importance of Chemoautotrophy for Primary Production in a Light Exposed Marine Shallow Hydrothermal System [PDF]
Frontiers in Microbiology, 2017 The unique geochemistry of marine shallow-water hydrothermal systems promotes the establishment of diverse microbial communities with a range of metabolic pathways.
Gonzalo V Gómez-Sáez +2 more
exaly +7 more sources
Characterizing Chemoautotrophy and Heterotrophy in Marine Archaea and Bacteria With Single-Cell Multi-isotope NanoSIP [PDF]
Frontiers in Microbiology, 2019 Characterizing and quantifying in situ metabolisms remains both a central goal and challenge for environmental microbiology. Here, we used a single-cell, multi-isotope approach to investigate the anabolic activity of marine microorganisms, with an ...
Anne E Dekas +2 more
exaly +7 more sources
Interplay between autotrophic and heterotrophic prokaryotic metabolism in the bathypelagic realm revealed by metatranscriptomic analyses [PDF]
Microbiome, 2023 Background Heterotrophic microbes inhabiting the dark ocean largely depend on the settling of organic matter from the sunlit ocean. However, this sinking of organic materials is insufficient to cover their demand for energy and alternative sources such ...
Abhishek Srivastava +6 more
doaj +4 more sources
Suboxic DOM is bioavailable to surface prokaryotes in a simulated overturn of an oxygen minimum zone, Devil’s Hole, Bermuda [PDF]
Frontiers in Microbiology, 2023 Oxygen minimum zones (OMZs) are expanding due to increased sea surface temperatures, subsequent increased oxygen demand through respiration, reduced oxygen solubility, and thermal stratification driven in part by anthropogenic climate change.
Rachel J. Parsons +17 more
doaj +2 more sources
Deep-sea corals near cold seeps associate with sulfur-oxidizing chemoautotrophs in the family Ca. Thioglobaceae [PDF]
MicrobiomeBackground Corals are known for their symbiotic relationships, yet there is limited evidence of chemoautotrophic associations. This is despite some corals occurring near cold seeps where chemosymbiotic fauna abound including mussels that host sulfur ...
Samuel A. Vohsen +7 more
doaj +2 more sources
Integration of multiple metabolic pathways supports high rates of carbon precipitation in living microbialites [PDF]
Nature CommunicationsMicrobialites are lithifying microbial mats that form multi-layered structures via biological carbon (C) uptake and carbonate precipitation. Here we relate C uptake and precipitation rates to taxonomic diversity and functional capacity of bacterial ...
Rachel E. Sipler +8 more
doaj +2 more sources
Abundant and metabolically flexible bacterial lineages underlie a vast potential for rubisco-mediated carbon fixation in the dark ocean [PDF]
Genome BiologyBackground Rubisco is among the most abundant enzymes on Earth and is a critical conduit for inorganic carbon into the biosphere. Despite this, the full extent of rubisco diversity and the biology of organisms that employ it for carbon fixation are still
Alexander L. Jaffe +2 more
doaj +2 more sources