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Substrate Limitation for Methanogenesis in Hypersaline Environments
Astrobiology, 2012Motivated by the increasingly abundant evidence for hypersaline environments on Mars and reports of methane in its atmosphere, we examined methanogenesis in hypersaline ponds in Baja California Sur, Mexico, and in northern California, USA. Methane-rich bubbles trapped within or below gypsum/halite crusts have δ¹³C values near -40‰.
Cheryl A, Kelley +4 more
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Conodonts in Silurian hypersaline environments: Specialized and unexpectedly diverse
Geology, 2017Abstract Hypersaline environments are commonly assumed to be barren of metazoans and therefore are avoided by paleontologists, yet a number of early Paleozoic jawless vertebrate groups specialized to live in such settings. Sampling bias against restricted settings resulted in substantial underestimation of their diversity.
Jarochowska, Emilia +6 more
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Methanogenic bacteria from hypersaline environments
Systematic and Applied Microbiology, 1986Summary Several strains of methanogenic bacteria were isolated from logoons in Crimea that ranged in salinity from 2.2% to 30%. All of the isolates were obligately halophilic, methylotrophic methanogens utilizing methylamines as the sole substrate for growth and each was unable to metabolise H 2 :CO 2 , acetate or formate. The strains differ in their
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Structure and Trophic Relations in Hypersaline Environments
Biology Bulletin Reviews, 2020Hypersaline waters with a salinity exceeding 35 g/L are widely distributed on the planet (hypersaline lakes and lagoons, deep-water “lakes,” and pore waters of sea ice) and are among the most extreme habitats on Earth. The present work analyzes and summarizes the results of long-term research on hypersaline lake and lagoon ecosystems in the Crimea ...
N. V. Shadrin, E. V. Anufriieva
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Microbial communities of halite deposits and other hypersaline environments
2022Large regions of Earth's surface are underlain by salt deposits that evaporated from ancient oceans and are populated by extreme halophilic microbes. While the microbiology of ancient evaporites has been well studied, the ecology of halite deposits and more recently formed NaCl "salticle" stalactite structures (speleothems) in a Triassic halite mine ...
Thompson, Thomas P. +4 more
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Moderately Halophilic Gram-Positive Cocci from Hypersaline Environments
Systematic and Applied Microbiology, 198338 strains of moderately halophilic Gram-positive, catalase-positive cocci were isolated from saline soils and the ponds of a solar saltern in Alicante (Spain). They were divided into three biochemically distinct groups. On the basis of the characteristics investigated the 25 strains of group I corresponded to Planococcus halophilus; the ten strains of
A, Ventosa +2 more
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Life in Hypersaline Environments
2016Many microorganisms are adapted to life at high-salt concentrations. Halophilic representatives are found in each of the three domains of life: Archaea, Bacteria, and Eukarya. Halophilic viruses exist as well. In NaCl-saturated brines such as found in the northern part of Great Salt Lake, Utah, in a few other natural salt lakes, and in saltern ...
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Heterotrophic Protozoa from Hypersaline Environments
2005https://nsuworks.nova.edu/cnso_bio_facbooks/1012/thumbnail ...
Hauer, Gwen, Rogerson, Andrew
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Cell sorting analysis of geographically separated hypersaline environments
Extremophiles, 2013Biogeography of microbial populations remains to be poorly understood, and a novel technique of single cell sorting promises a new level of resolution for microbial diversity studies. Using single cell sorting, we compared saturated NaCl brine environments (32-35 %) of the South Bay Salt Works in Chula Vista in California (USA) and Santa Pola saltern ...
Olga, Zhaxybayeva +3 more
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Methanogens and Methanogenesis in Hypersaline Environments
2018Methanogenesis is controlled by redox potential and permanency of anaerobic conditions; and in hypersaline environments, the high concentration of terminal electron acceptors, particularly sulfate, is an important controlling factor. This is because sulfate-reducing microbes, compared with methanogens, have a greater affinity for, and energy yield from,
McGenity, Terry J, Sorokin, Dimitry Y
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