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Now showing items 151-160 of 166
Characterization of a Sporulation Related Two-Component Signaling System in Clostridioides difficile
(2023-12-15)
Clostridioides difficile is a spore-forming anaerobic human pathogen, that is commonly associated with antibiotic therapy in adults. The disturbance of the gut microbiota, typically caused by antibiotics, allows for an ...
Physiology and biochemistry of purine salvage in an archaeobacterium, Methanobacterium thermoautotrophicum.
(1997)
Studies of the effect of temperature on stability of 100-fold purified HGPRTase from M. thermoautotrophicum suggested that this enzyme is the most thermostable of all known HGPRTases; upon incubation at 92$\sp\circ$C ...
Iron uptake in Gram-negative and Gram-positive bacteria.
(2006)
Bacteria, including both Gram-positive and Gram-negative bacteria, utilize iron sources from the environment. Iron uptake systems in Gram-negative bacteria are well studied. Escherichia coli FepA transports certain catecholate ...
Binding and transport through ferric siderophore receptors, FepA and FhuA.
(2006)
Under iron deficient conditions, Gram-negative bacteria like E. coli secrete siderophores to chelate iron in the extracellular medium. Ligand-gated porins (LGPs) transport the ferric siderophore complexes across the outer ...
Halogens, taurobetaine and waxes in gorgonians /
(The University of Oklahoma., 1960)
Evaluation of toxic metals in natural fish populations in Oklahoma.
(1981)
The level of toxic metals was low in the water samples but were much higher in the sediment samples. There were no significant correlations beween the levels of toxic metals in the water to the levels in the sediment.