Halophilic bacterium

Guo J, Zhou J, Wang D, Tian C, Wang Ping M, Uddin S (2008) A novel moderately halophilic bacterium for decolorizing azo dye under high salt condition. Biodegr 19 15-19... 

Silipo, A., Leone, S., Lanzetta, R., Parrilli, M., Sturiale, L., Garozzo, D., Nazarenko, E.L., Gorshkova, R.P., Ivanova, E.P., Gorshkova, N.M., Molinaro, A. The complete structure of the lipooligosaccharide from the halophilic bacterium Pseudoalteromonas issachenkonii KMM 3549T. Carbohydr Res 339 (2004a) 1985-1993. 

NADH [6,99]. The NADH oxidase from an extremely halophilic bacterium, strain AR-1, is most active at high solute concentrations. This salt dependency, in part, reflects the dissociation of the NADH dehydrogenase from the membrane [100]. The cation requirement for oxidase activity is relatively non-specific when the cations are added as the chloride salts. NADH oxidase activity is profoundly affected by the nature of the anion. The order of decreasing effectiveness (as the Na salt) mimics the lyotropic series [101] ... 

T Wacker, N Gad on, K Steck, W Welte and G Drews (1988) Isolation of reaction center and antenna complexes from the halophilic bacterium Rhodospirillum salexigens. Crystallization and spectroscopic investigation of the B800-850-complex. Biochim Biophys Acta 933 299-305... 

Halobacterium halobium (now also known as Halobacterium salinarium) is a halophilic bacterium which lives in concentrated salt solutions. It requires a high NaCl concentration to thrive, growing best in 4.3 M NaCl and becoming nonviable at concentration below -3.0 M. Note that seawater is ordinarily only... 

Fig. 23. (A) The halophilic bacterium H. halobium with patches containing the "purple membrane" (B) Structure of the protein bacteriorhodopsin (left) and the structural formula for the chromophore retinal (right) (C) Covalent binding of retinal with iysine-216 forming a positively-charged Schiff base (D) Illumination of the bacteriorhodopsin retinal and transformation from a trans- to a cis-configuration and releases a proton from the Schiff base to the cell exterior relaxation to ttie trans-form, with uptake of a proton from the cytoplasmic interior. The combination of deprotonation and reprotonation on opposite sides of the membrane constitutes a proton pump. See text for other details. Figures partly adapted from Becker and Deamer (1991) The World of the Cell (2nd ed) Benjamin/Cummings PubI Co. p 215.

There are two reports on partially characterised vanadium-containing, molybdenum-free nitrate reductases, isolated from the bacteria Thioalkalivibrio nitratireducens and Pseudomonas isachenkoviiV T. nitratireducens is a facultative anaerobic, alkali- and halophilic bacterium living in soda lakes. Its nitrate reductase has a molecular mass of... 

Chlorine has recently been described as a signal molecule in gene regulation of a moderately halophilic bacterium (RoeEler and Muller 2002), and some bacteria have -under specific conditions - chloride-specific transport channels (Iyer et al. 2002). Most importantly. Cl is integral part of the water-splitting apparatus of photosystem II in cyanobacteria and chloroplasts (Yachan-dra et al. 1993). 

Bacteriorhodopsin a retinaldehyde-containing purple membrane protein (M, 26,000 248 amino acid residues) first discovered in the halophilic bacterium Halobacierium halobium. The primary structure of B. is not homologous with that of vertebrate rhodopsin (M, 40,000), but the tertiary structures of the two proteins are similar. B. consists of 7 a-helical regions which lie in the membrane. These are connected by nonhelical regions which protrude into the cytoplasm and extracellular space. The membrane portions of the mole-... 

Participation of EPSs in cell protection is referred to binding and neutralizing bacteriophage, protozoans, and phagocytosis. Anti-cytotoxic activity against avarol was proved for the polymer from a halophilic bacterium, Halomonas sp. and a thermophilic bacterium. Geobacillus tepidamans. ... 

Amino-2-deoxy-L-altruronic acid, hitherto unknown in Nature, has been identified as a constituent of the Shigella sonnei phase I lipopolysaccharide, while an hydrolysate of the cell walls of Halococcus sp. strain 24, an extremely halophilic bacterium, has been shown to contain a 2-amino-2,6-dideoxyhexose-6-sulphonic acid.3 3 the amino-sugars separated and identified from acid hydrolysates... 

Arias, S., del Moral, A., Ferrer, M. R., Tallon, R., Quesada, E., Bejar, V. M. An exopolysaccharide produced by the halophilic bacterium Halomonas maura, with a novel composition and interesting properties for biotechnology. Extremophiles 2003,7,319-326. 

Ruiz-Ruiz, C., Srivastava, G. K., Carranza, D., Mata, J. A., Llamas, 1., Santamaria, M., Quesada, E., Malina, I. J. An exopolysaccharide produced by the novel halophilic bacterium Halomonas stenophila strain B 100 selectively induces apoptosis in human T leukaemia cells. Appl Microbiol Biotechnol 2011, 89, 345-355. 

Amoozegar, M. A., Salehghamari, E., Khajeh, K., Kabiri, M., Naddaf, S. Production of an extracellular thermohalophilic lipase from a moderately halophilic bacterium, Salini-vibrio sp. strain SA-2. J. Basic. Microbiol. 2008, 48, 3, 160-167. 

Biwas, A., Patra, A., Paul, A. K. Production of poly-3- hydroxyalkanoic acids by a moderate halophilic bacterium Halomonas marina HMA 103 isolated from solar saltern of Orissa, India. Acta Microbiol Inmunol. Hung 2009, 56, 125-143. 

Canovas, D., Vargas, C., Csonka, L. N., Ventosa, A., Nieto, J. J. Synthesis of glycine betaine from exogenous choline in the moderately halophilic bacterium Halomonas elongata. Appl Environ Microbiol. 1998, 64, 4095 097. 

Hiraga, K., Nishikata, Y, Namwong, S., Tanasupawat, S., Takada, K., Oda, K. Purification and characterization of serine proteinase from a halophilic bacterium, Filoba-cillus sp. RF2-5. Biosci BiotechnolBiochem 2005, 69(1), 38-44. 

Phrommao, E., Rodtong, S., Yongsawatdigul, J. Identification of novel halotolerant bacillopep-tidase F-like proteinases from a moderately halophilic bacterium, Virgibacillus sp. SK37. JAppl Microbiol 20U, 110(1), 191-201. 

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