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Microbial life at high salt concentrations: phylogenetic and metabolic diversity.
Oren A. Oren A. Saline Systems. 2008 Apr 15;4:2. doi: 10.1186/1746-1448-4-2. Saline Systems. 2008. PMID: 18412960 Free PMC article.
Few adaptations of the cells' proteome are needed, and organisms using the 'organic-solutes-in strategy' often adapt to a surprisingly broad salt concentration range. ...A variety of such solutes are known, including glycine betaine, ectoine and other amino acid der …
Few adaptations of the cells' proteome are needed, and organisms using the 'organic-solutes-in strategy' often adapt to a surprisingl …
Formation and breakdown of glycine betaine and trimethylamine in hypersaline environments.
Oren A. Oren A. Antonie Van Leeuwenhoek. 1990 Nov;58(4):291-8. doi: 10.1007/BF00399342. Antonie Van Leeuwenhoek. 1990. PMID: 2082817 Review.
Glycine betaine is accumulated as a compatible solute in many photosynthetic and non-photosynthetic bacteria--the last being unable to synthesize the compound--and thus large pools of betaine can be expected to be present in hypersaline environments. A variety of ae …
Glycine betaine is accumulated as a compatible solute in many photosynthetic and non-photosynthetic bacteria--the last being unable t …
Anaerobic degradation of organic compounds at high salt concentrations.
Oren A. Oren A. Antonie Van Leeuwenhoek. 1988;54(3):267-77. doi: 10.1007/BF00443585. Antonie Van Leeuwenhoek. 1988. PMID: 3048206 Review.
A number of obligately anaerobic fermentative bacteria are known to degrade a variety of organic substrates such as sugars, amino acids, and others, in the presence of high salt concentrations (up to 3-4 M) to products such as hydrogen, CO2, acetate and higher fatty
A number of obligately anaerobic fermentative bacteria are known to degrade a variety of organic substrates such as sugars, am
Diversity of lactate metabolism in halophilic archaea.
Oren A, Gurevich P. Oren A, et al. Can J Microbiol. 1995 Mar;41(3):302-7. doi: 10.1139/m95-042. Can J Microbiol. 1995. PMID: 7736359
D-Lactate is readily used as a substrate for the growth of species of halophilic archaea belonging to the genera Haloferax and Haloarcula. ...A high level of activity of an NAD-linked enzyme was present constitutively in Haloarcula species, and a low level of …
D-Lactate is readily used as a substrate for the growth of species of halophilic archaea belonging to the genera Haloferax and Haloar …
Enzyme diversity in halophilic archaea.
Oren A. Oren A. Microbiologia. 1994 Sep;10(3):217-28. Microbiologia. 1994. PMID: 7873098 Review.
The halophilic archaea display a considerable extent of enzyme diversity. The presence or absence of certain enzymatic activities is closely linked with the taxonomic status of the strains investigated. ...Other enzymes which show considerable diversity are fructose 1,6-bi …
The halophilic archaea display a considerable extent of enzyme diversity. The presence or absence of certain enzymatic activities is …
Bioenergetic aspects of halophilism.
Oren A. Oren A. Microbiol Mol Biol Rev. 1999 Jun;63(2):334-48. Microbiol Mol Biol Rev. 1999. PMID: 10357854 Free PMC article. Review.
Most bacteria and also the methanogenic Archaea produce high intracellular concentrations of organic osmotic solutes at a high energetic cost. ...This may explain why the anaerobic halophilic fermentative bacteria (order Haloanaerobiales) use this strategy and also why hal …
Most bacteria and also the methanogenic Archaea produce high intracellular concentrations of organic osmotic solutes at a high energe …
Halocins: are they involved in the competition between halobacteria in saltern ponds?
Kis-Papo T, Oren A. Kis-Papo T, et al. Among authors: oren a. Extremophiles. 2000 Feb;4(1):35-41. doi: 10.1007/s007920050005. Extremophiles. 2000. PMID: 10741835
To test whether halocins may play a role in the interspecies competition between different types of halobacteria in saltern crystallizer ponds inhabited by dense communities of these red halophiles, we assayed for halocins active against a variety of halobacteria in …
To test whether halocins may play a role in the interspecies competition between different types of halobacteria in saltern crystalli …
Haloarcula marismortui (Volcani) sp. nov., nom. rev., an extremely halophilic bacterium from the Dead Sea.
Oren A, Ginzburg M, Ginzburg BZ, Hochstein LI, Volcani BE. Oren A, et al. Int J Syst Bacteriol. 1990 Apr;40(2):209-10. doi: 10.1099/00207713-40-2-209. Int J Syst Bacteriol. 1990. PMID: 11536469
Physiol. 55: 187-207, 1970) belongs to the genus Haloarcula and differs sufficiently from the previously described species of the genus to be designated a new species; we propose the name Haloarcula marismortui (Volcani) sp. nov., nom. rev. because of the close resemblance …
Physiol. 55: 187-207, 1970) belongs to the genus Haloarcula and differs sufficiently from the previously described species of the genus to b …
Diversity of halophilic microorganisms: environments, phylogeny, physiology, and applications.
Oren A. Oren A. J Ind Microbiol Biotechnol. 2002 Jan;28(1):56-63. doi: 10.1038/sj/jim/7000176. J Ind Microbiol Biotechnol. 2002. PMID: 11938472
Using a combination of culture techniques, molecular biological methods, and chemotaxonomic studies, we have obtained information on the nature of the halophilic Archaea as well as the halophilic Bacteria that inhabit saltern crystallizer ponds. ...
Using a combination of culture techniques, molecular biological methods, and chemotaxonomic studies, we have obtained information on …
Mycosporine-2-glycine is the major mycosporine-like amino acid in a unicellular cyanobacterium (Euhalothece sp.) isolated from a gypsum crust in a hypersaline saltern pond.
Kedar L, Kashman Y, Oren A. Kedar L, et al. Among authors: oren a. FEMS Microbiol Lett. 2002 Mar 5;208(2):233-7. doi: 10.1111/j.1574-6968.2002.tb11087.x. FEMS Microbiol Lett. 2002. PMID: 11959442
Mycosporine-like amino acids (MAAs) were extracted from a unicellular cyanobacterium (Euhalothece sp.) isolated from a gypsum crust on the bottom of a hypersaline saltern pond in Eilat, Israel. ...
Mycosporine-like amino acids (MAAs) were extracted from a unicellular cyanobacterium (Euhalothece sp.) isolated from a gypsum …
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