Results 41 to 50 of about 1,883 (153)

Marine Group II Archaea, potentially important players in the global ocean carbon cycle

open access: yesFrontiers in Microbiology, 2015
Marine Group (MG) I (currently known as Thaumarchaeota) and MG II Archaea were first reported over two decades ago. While significant progress has been made on MG I microbiology and ecology, the progress on MG II has been noticeably slower.
Chuanlun eZhang   +3 more
doaj   +1 more source

Mycobacteria isolated from Angkor monument sandstone grow chemolithoautotrophically by oxidizing elemental sulfur

open access: yesFrontiers in Microbiology, 2011
To characterize sulfate-producing microorganisms from the deteriorated sandstones of Angkor monuments in Cambodia, strains of Mycobacterium spp. were isolated from most-probable-number-positive cultures.
Asako eKusumi   +2 more
doaj   +1 more source

Circumstellar habitable zones for deep terrestrial biospheres [PDF]

open access: yes, 2013
SM and JOJ are grateful to the UK Science and Technology Facilities Council (STFC) for Aurora Studentships. We thank Dr. Stephen Clifford (LPI), Dr. Ravi Kopparapu (Penn State), and Claire Davis (St. Andrews) for generous technical advice.
McMahon, Sean Hendry   +2 more
core   +1 more source

Hydrogenase gene distribution and H2 consumption ability within the Thiomicrospira lineage

open access: yesFrontiers in Microbiology, 2016
Thiomicrospira were originally characterized as sulfur-oxidizing chemolithoautotrophs. Attempts to grow them on hydrogen failed for many years. Only recently we demonstrated hydrogen consumption among two of three tested Thiomicrospira and posited that ...
Moritz eHansen, Mirjam ePerner
doaj   +1 more source

High-pressure continuous culturing: life at the extreme

open access: yesApplied and Environmental Microbiology
Microorganisms adapted to high hydrostatic pressures at depth in the oceans and within the subsurface of Earth’s crust represent a phylogenetically diverse community thriving under extreme pressure, temperature, and nutrient availability conditions.
Dionysis I. Foustoukos   +1 more
doaj   +1 more source

Serpentinization as the source of energy, electrons, organics, catalysts, nutrients and pH gradients for the origin of LUCA and life

open access: yesFrontiers in Microbiology, 2023
Serpentinization in hydrothermal vents is central to some autotrophic theories for the origin of life because it generates compartments, reductants, catalysts and gradients.
Loraine Schwander   +5 more
doaj   +1 more source

Comparative genomics of the proteostasis network in extreme acidophiles.

open access: yesPLoS ONE, 2023
Extreme acidophiles thrive in harsh environments characterized by acidic pH, high concentrations of dissolved metals and high osmolarity. Most of these microorganisms are chemolithoautotrophs that obtain energy from low redox potential sources, such as ...
Katherin Izquierdo-Fiallo   +4 more
doaj   +1 more source

The influence of ultramafic rocks on microbial communities at the Logatchev Hydrothermal field, located 15°N on the Mid-Atlantic Ridge [PDF]

open access: yes, 2007
The ultramafic-hosted Logatchev hydrothermal field (LHF) on the Mid-Atlantic Ridge is characterized by high hydrogen and methane contents in the subseafloor, which support a specialized microbial community of phylogenetically diverse, hydrogen-oxidizing ...
Acinas   +61 more
core   +1 more source

Microbial Communities of Ferromanganese Sedimentary Layers and Nodules of Lake Baikal (Bolshoy Ushkany Island)

open access: yesDiversity, 2022
Ferromanganese (Fe-Mn) sedimentary layers and nodules occur at different depths within sediments at deep basins and ridges of Lake Baikal. We studied Fe-Mn nodules and host sediments recovered at the slope of Bolshoy Ushkany Island.
Tamara Zemskaya   +9 more
doaj   +1 more source

Snowmelt induced hydrologic perturbations drive dynamic microbiological and geochemical behaviors across a shallow riparian aquifer

open access: yesFrontiers in Earth Science, 2016
Shallow riparian aquifers represent hotspots of biogeochemical activity in the arid western US. While these environments provide extensive ecosystem services, little is known of how natural environmental perturbations influence subsurface microbial ...
Robert eDanczak   +6 more
doaj   +1 more source

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