منابع مشابه
Ion Metabolism in a Halobacterium I. Influence of age of culture on intraceUular concentrations
Work is described on the changes in cell ions during growth of cultures of a species of Halobacterium isolated from the Dead Sea. Cell K concentration fell from 5.5 to 3.8 moles per kg cell water during the logarithmic phase of growth and maintained the latter value during the stationary phase (initial medium concentration, 7 re_M). Cell Na and CI followed a complex series of roughly parallel c...
متن کاملArginine metabolism in Halobacterium salinarium, an obligately halophilic bacterium.
Dundas, Ian E. D. (University of Illinois, Urbana), and H. Orin Halvorson. Arginine metabolism in Halobacterium salinarium, an obligately halophilic bacterium. J. Bacteriol. 91:113-119. 1966.-Arginine was shown to be essential for growth of Halobacterium salinarium strain 1 in a chemically defined medium. Citrulline was the only compound which could substitute for arginine without affecting gro...
متن کاملExistence of electrogenic hydrogen ion/sodium ion antiport in Halobacterium halobium cell envelope vesicles.
Illumination causes the extrusion of protons from Halobacterium halobium cell envelope vesicles, as a result of the action of light on bacteriorhodopsin. The protonmotive force developed is coupled to the active transport of Na+ out of the vesicles. The light-dependent ion fluxes in these vesicles were studied by following changes in the external pH, in the fluorescence of the dye, 3,3'-dipenty...
متن کاملGenetic transfer in Halobacterium volcanii.
Auxotrophic mutants of Halobacterium volcanii generated by chemical mutagenesis were used to demonstrate a native genetic transfer system in this extremely halophilic member of the class Archaeobacteria.
متن کاملGenetic variability in Halobacterium halobium.
Halobacterium halobium exhibits an extraordinary degree of spontaneous variability. Mutants which are defective in the formation of gas vacuoles (vac) arise at a frequency of 10(-2). Other easily detectable phenotypes, like the synthesis of bacterioruberin (Rub) or the synthesis of retinal (Ret) and bacterio-opsin (Ops), the two components which form the purple membrane (Pum) of H. halobium, ar...
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ژورنال
عنوان ژورنال: Journal of General Physiology
سال: 1970
ISSN: 1540-7748,0022-1295
DOI: 10.1085/jgp.55.2.187