Results 111 to 120 of about 45,237 (159)

Construction of composite transposons for halophilic Archaea

Canadian Journal of Microbiology, 1994
Transposons 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
openaire   +2 more sources

Nitrate Assimilation in Halophilic Archaea

2004
Nitrate 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, Frutos C. Marhuenda-Egea, Carmen Pire, Juan Ferrer, Rosa M. Martínez-Espinosa   +4 more
openaire   +1 more source

Uranium association with halophilic and non-halophilic bacteria and archaea

Radiochimica Acta, 2004
Summary 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, J. B. Gillow, Cleveland J. Dodge, R. Harris, T. J. Beveridge, H. W. Papenguth   +5 more
openaire   +1 more source

Supernatant Metabolites from Halophilic Archaea to Reduce Tumorigenesis in Prostate Cancer In-vitro and In-vivo

Iranian journal of pharmaceutical research, 2019
Halophilic archaea are known as the novel producers of natural products and their supernatant metabolites could have cytotoxic effects on cancer cells.
A. Safarpour, Marzieh Ebrahimi, S. A. Shahzadeh Fazeli, M. A. Amoozegar   +3 more
semanticscholar   +1 more source

Bioprospecting Archaea: Focus on Extreme Halophiles

2016
In 1990, Woese et al. divided the Tree of Life into three separate domains: Eukarya, Bacteria, and Archaea. Archaea were originally perceived as little more than “odd bacteria” restricted to extreme environmental niches, but later discoveries challenged this assumption. Members of this domain populate a variety of unexpected environments (e.g.
Antunes, André, Simões, Marta Filipa, Grotzinger, Stefan W, Eppinger, Jorg, Braganca, Judith, Bajic, Vladimir   +5 more
openaire   +2 more sources

Flagella of halophilic archaea: Differences in supramolecular organization

Biochemistry (Moscow), 2014
Archaeal 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, M G, Pyatibratov, O V, Fedorov   +2 more
openaire   +2 more sources

Evolutionary advantages of polyploidy in halophilic archaea

Biochemical Society Transactions, 2013
Several 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 ...
openaire   +2 more sources

Polyploidy in halophilic archaea: regulation, evolutionary advantages, and gene conversion.

Biochemical Society Transactions, 2019
All analyzed haloarachea are polyploid. In addition, haloarchaea contain more than one type of chromosome, and thus the gene dosage can be regulated independently on different replicons.
Katharina Ludt, J. Soppa
semanticscholar   +1 more source

HF1 and HF2: Novel Bacteriophages of Halophilic Archaea

Virology, 1993
Two 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
openaire   +2 more sources

Enzymes from Halophilic Archaea: Open Questions

2011
During the past few decades, the microbial communities inhabiting extreme environments have become a focus on scientific interest owing to the unique properties of the biocatalysts they produce (extremozymes). These extremozymes can cope with industrial process conditions (high temperatures, high salt concentrations, low water availability, etc.) due ...
María José Bonete, Rosa María Martínez-Espinosa   +1 more
openaire   +1 more source