Results 181 to 190 of about 211,511 (236)

Microbial essentials at hydrothermal vents

Nature, 2000
Hot, anoxic fluids emerging from deep-sea hydrothermal vents mix suddenly with cold oxygenated sea water, providing ideal microbial niches for organisms that need limited amounts of oxygen. We have now identified and grown the first microaerophilic, thermophilic eubacterium from a deep-sea hydrothermal chimney.
A L, Reysenbach, A B, Banta, D R, Boone, S C, Cary, G W, Luther   +4 more
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Hydrothermal vents and the origin of life

Nature Reviews Microbiology, 2008
Submarine hydrothermal vents are geochemically reactive habitats that harbour rich microbial communities. There are striking parallels between the chemistry of the H(2)-CO(2) redox couple that is present in hydrothermal systems and the core energy metabolic reactions of some modern prokaryotic autotrophs.
William Martin, John Baross, Deborah Kelley, Michael J. Russell   +3 more
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Geomicrobiology of Deep-Sea Hydrothermal Vents

Science, 1985
During the cycling of seawater through the earth's crust along the mid-ocean ridge system, geothermal energy is transferred into chemical energy in the form of reduced inorganic compounds. These compounds are derived from the reaction of seawater with crustal rocks at high temperatures and are emitted from warm (≤25°C) and hot (∼350°C) submarine vents ...
H W, Jannasch, M J, Mottl
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Scientists as Stakeholders in Conservation of Hydrothermal Vents

Conservation Biology, 2011
Abstract:  Hydrothermal vents are deep‐sea ecosystems that are almost exclusively known and explored by scientists rather than the general public. Continuing scientific discoveries arising from study of hydrothermal vents are concommitant with the increased number of scientific cruises visiting and sampling vent
Godet, Laurent, van Dover, Cindy, Zelnio, Kevin   +2 more
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The Origin of Life in Alkaline Hydrothermal Vents

Astrobiology, 2016
Over the last 70 years, prebiotic chemists have been very successful in synthesizing the molecules of life, from amino acids to nucleotides. Yet there is strikingly little resemblance between much of this chemistry and the metabolic pathways of cells, in terms of substrates, catalysts, and synthetic pathways.
Victor, Sojo, Barry, Herschy, Alexandra, Whicher, Eloi, Camprubí, Nick, Lane   +4 more
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Diversity at hydrothermal vents

Global Ecology and Biogeography, 2003
ABSTRACTAimTo describe patterns of hydrothermal vent community diversity and dispersion at the intersegment scale (> 100 km).LocationThe area discussed is an approximately 170 km portion of the Juan de Fuca Ridge, a mid‐ocean ridge in the north‐east Pacific Ocean.MethodsSamples of benthic invertebrates from hydrothermal vents on three segments of ...
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Hydrothermal Vents

2020
Howard Burton, Nick Lane
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Manganese scavenging and oxidation at hydrothermal vents and in vent plumes

Geochimica et Cosmochimica Acta, 1993
Abstract Hydrothermal vents provide a major source of dissolved Mn(II) to the oceans, where concentrations range from 5 mM within the 350°C hot smokers to just above ambient seawater concentration in far field vent plumes. The Mn(II)-rich environments within warm vents and vent plumes provide a suitable habitat for Mn(II) oxidizing bacteria. In order
Kevin W. Mandernack, Bradley M. Tebo
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Hydrothermal Vent Animals: Distribution and Biology

Science, 1985
Hydrothermal vent communities characterized by large clams, mussels, and vestimentiferan worms thrive on chemosynthetic microbial production. There are similarities in the animal distributions at vent communities from 20°S to 46°N on the Mid-Ocean Ridge in the Pacific Ocean and at cold sulfide seeps in the Gulf of Mexico.
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Introduction to the Biology of Hydrothermal Vents

1983
A search for hydrothermal vents forming metal deposits led to the unexpected discovery of dense beds of clams, mussels, and vestimentiferan worms on the Galapagos Rift in 1977. The clams were first seen in photographs taken by Deep Tow (Lonsdale, 1977) and the whole vent community was later observed from ALVIN (Corliss and Ballard, 1977; Corliss et al.,
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