Results 161 to 170 of about 6,066 (196)
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The information transfer system of halophilic archaea
Plasmid, 2011Information transfer is fundamental to all life forms. In the third domain of life, the archaea, many of the genes functioning in these processes are similar to their eukaryotic counterparts, including DNA replication and repair, basal transcription, and translation genes, while many transcriptional regulators and the overall genome structure are more ...
Melinda D, Capes +8 more
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Gas vesicle formation in halophilic Archaea
Archives of Microbiology, 1997Gas vesicles are intracellular, microbial flotation devices that consist of mainly one protein, GvpA. The formation of halobacterial gas vesicles occurs along a complex pathway involving 14 different gvp genes that are clustered in a genomic region termed the "vac region".
F, Pfeifer +5 more
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Carotenoid Analysis of Halophilic Archaea by Resonance Raman Spectroscopy [PDF]
Astrobiology, 2007 This is the publisher's version, also available electronically from "http://online.liebertpub.com".Recently, halite and sulfate evaporate rocks have been discovered on Mars by the NASA rovers, Spirit and Opportunity.
Craig P Marshall +2 more
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Diversity of lactate metabolism in halophilic archaea
Canadian Journal of Microbiology, 1995D-Lactate is readily used as a substrate for the growth of species of halophilic archaea belonging to the genera Haloferax and Haloarcula. L-Lactate was used by Haloferax species (Haloferax volcanii, Haloferax mediterranei) only when a substantial concentration of the D-isomer was also present in the medium.
A, Oren, P, Gurevich
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Construction of composite transposons for halophilic Archaea
Canadian Journal of Microbiology, 1994Transposons with selectable marker genes (e.g., antibiotic resistance) have been extremely useful tools in bacterial genetics but have not been found naturally in Archaea. We constructed synthetic transposons consisting of halobacterial ISH elements (ISH2, ISH26, or ISH28) flanking a mevinolin resistance determinant.
M L, Dyall-Smith, W F, Doolittle
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Uranium association with halophilic and non-halophilic bacteria and archaea
Radiochimica Acta, 2004Summary We determined the association of uranium with bacteria isolated from the Waste Isolation Pilot Plant (WIPP), Carlsbad, New Mexico, and compared this with known strains of halophilic and non-halophilic bacteria and archaea.
Arokiasamy J. Francis +5 more
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Flagella of halophilic archaea: Differences in supramolecular organization
Biochemistry (Moscow), 2014Archaeal flagella are similar functionally to bacterial flagella, but structurally they are completely different. Helical archaeal flagellar filaments are formed of protein subunits called flagellins (archaellins). Notwithstanding progress in studies of archaeal flagella achieved in recent years, many problems in this area are still unsolved.
A S, Syutkin +2 more
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Evolutionary advantages of polyploidy in halophilic archaea
Biochemical Society Transactions, 2013Several species of haloarchaea have been shown to be polyploid and thus this trait might be typical for and widespread in haloarchaea. In the present paper, nine different possible evolutionary advantages of polyploidy for haloarchaea are discussed, including low mutation rate, radiation/desiccation resistance, gene redundancy and survival over ...
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HF1 and HF2: Novel Bacteriophages of Halophilic Archaea
Virology, 1993Two novel halophilic archaebacterial bacteriophages, HF1 and HF2, were isolated from an Australian solar saltern. They were morphologically identical with icosahedral-shaped heads (diameter 58 nm) and contractile tails (length 94 nm). Other similarities included sensitivity to reduced ionic conditions, similar protein profiles by SDS-PAGE, and dsDNA ...
S D, Nuttall, M L, Dyall-Smith
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Nitrate Assimilation in Halophilic Archaea
2004Nitrate is an important inorganic nitrogen source for plants and microorganisms. The physiology, enzymology and genetics of nitrate assimilation have been well studied in plants and bacteria (Campbell 1996; Lin and Stewart 1998); nonetheless, little is known at the biochemical, genetic or structural level of this process in halophilic Archaea.
María José Bonete +4 more
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