Active Transport of Choline by a Marine Pseudomonad
نویسندگان
چکیده
منابع مشابه
Characterization of neutral amino acid transport in a marine pseudomonad.
The transport of neutral amino acids in marine pseudomonad B-16 (ATCC 19855) has been investigated. From patterns of competitive inhibition, mutant analysis, and kinetic data, two active transport systems with overlapping substrate specificities were distinguished and characterized. One system (DAG) served glycine, D-alanine, D-serine, and alpha-aminoisobutyric acid (AIB) and, to a lesser exten...
متن کاملActive Transport of Choline Sulfate by Barley Roots.
Choline sulfate is a major product of sulfate metabolism in plants (9, 13). This sulfate ester accounts for up to one-third of the radioactivity in the soluble organic compounds fornmed after uptake of radliosulfate by plant roots. The analogous choline phosphate occurs in higher plants and is involved in phosphate transport (8). No similar role for choline sulfate as a carrier for sulfate coul...
متن کاملMechanism of optical effects in suspensions of a marine pseudomonad.
When cells of a marine pseudomonad washed free of medium components with 0.05 m MgSO(4) were suspended in solutions containing 200-mm concentrations of various salts, there was an immediate increase in optical density (OD), followed by a slow decrease. The decrease following the initial increase, but not the increase itself, could be prevented by omitting K(+) from or by adding metabolic inhibi...
متن کاملRegulatory influences on the production of gamma-aminobutyric Acid by a marine pseudomonad.
A pseudomonad capable of producing gamma-aminobutyric acid (GABA) was isolated from seawater via an enrichment in which glutamate was the sole carbon and nitrogen source. The organism grew optimally at pH 7.3 and at 25 degrees C. Putrescine, alanine, and glucose-nitrate also served as effective growth substrates. The isolate grew poorly on GABA. Cell suspensions of the organism in 0.02 M phosph...
متن کاملNature of the specificity of alcohol coupling to L-alanine transport into isolated membrane vesicles of a marine pseudomonad.
Ethanol stimulated the uptake of l-alanine into isolated membrane vesicles of a marine pseudomonad at a rate and to an extent comparable with that obtained with reduced nicotinamide adenine dinucleotide (NADH) or the artificial electron donor ascorbate-N, N, N', N'-tetramethyl-p-phenylenediamine (ascorbate-TMPD). Methanol and branched-chain alcohols had little or no capacity to energize transpo...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1974
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.120.1.197-202.1974