Results 181 to 190 of about 7,644 (223)
Methanogens and Methanogenesis in Hypersaline Environments
, 2018 Methanogenesis 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,
Terry J Mcgenity +2 more
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Understanding Fungi in Glacial and Hypersaline Environments
Annual Review of Microbiology, 2023 Hypersaline waters and glacial ice are inhospitable environments that have low water activity and high concentrations of osmolytes. They are inhabited by diverse microbial communities, of which extremotolerant and extremophilic fungi are essential components. Some fungi are specialized in only one of these two environments and can thrive in conditions
Cene Gostinčar, Nina Gunde-Cimerman
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Salinity-Dependent Species Richness of Bacillariophyta in Hypersaline Environments
Water (Switzerland), 2023 Hypersaline habitats are among the most polyextreme habitats on Earth, but they contain a rather large diatom species diversity. A review of the diatom species’ richness was made on three scales: 1. a separate lake in Crimea; 2.
Daria Balycheva +2 more
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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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Viruses from the Hypersaline Environment
2011Halophilic environments such as solar salterns and salt lakes are enriched in organisms belonging to the domain Archaea. The number of virus-like particles has also been shown to be high. Although most of the described haloarchaeal viruses are head–tail viruses, direct microscopic examination of environmental samples suggests more diversity.
Roine Elina, Oksanen Hanna
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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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Cyanobacterial Diversity and Halotolerance in a Variable Hypersaline Environment
Microbial Ecology, 2007The Great Salt Plains (GSP) in north-central Oklahoma, USA is an expansive salt flat (approximately 65 km(2)) that is part of the federally protected Salt Plains National Wildlife Refuge. The GSP serves as an ideal environment to study the microbial diversity of a terrestrial, hypersaline system that experiences wide fluctuations in freshwater influx ...
Andrea E, Kirkwood +3 more
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Halophiles: biology, adaptation, and their role in decontamination of hypersaline environments
World Journal of Microbiology and Biotechnology, 2016The unique cellular enzymatic machinery of halophilic microbes allows them to thrive in extreme saline environments. That these microorganisms can prosper in hypersaline environments has been correlated with the elevated acidic amino acid content in their proteins, which increase the negative protein surface potential.
Mohamed Faraj Edbeib +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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