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Your search keyword '"Ions -- Physiological aspects"' showing total 3 results
Start Over Descriptor "Ions -- Physiological aspects" Publisher american society for microbiology
3 results on '"Ions -- Physiological aspects"'

1. Tet(L) and Tet(K) tetracycline-divalent metal/H (super)+ antiporters: characterization of multiple catalytic modes and a mutagenesis approach to differences in their efflux substrate and coupling ion preferences

Author

Jin, Jie, Guffanti, Arthur A., Bechhofer, David H., and Krulwich, Terry A.

Subjects
Bacteriology -- Research, Tetracycline -- Physiological aspects, Catalysis -- Physiological aspects, Anion exchangers (Biology) -- Physiological aspects, Mutagenesis -- Physiological aspects, Ions -- Physiological aspects, Hydrogen-ion concentration -- Physiological aspects, Potassium -- Physiological aspects, Bacterial proteins -- Physiological aspects, Biological sciences
Abstract

Research has been conducted on the Tet(L) and Tet(K) proteins. Results indicate that these proteins couple tetracycline-divalent metal efflux to K (super)+ uptake and use this K (super)+ as a coupling ion when external pH increases.

Published
2002

2. The high salt requirement of the moderate halophile Chromohalobacter salexigens DSM3043 can be met not only by BaCl but by other ions

Author

O'Connor, Kathleen and Csonka, Laszlo N.

Subjects
Culture media (Biology) -- Composition, Ions -- Influence, Ions -- Physiological aspects, Halophilic bacteria -- Food and nutrition, Halophilic bacteria -- Growth, Company growth, Biological sciences
Abstract

Research demonstrates the ability of the halophilic Chromohalobacter salexigens DSM3043 to grow in media containing high ion concentrations. Data show that the growth is stimulated by many monovalent anions and cations at 0.7 molar concentrations of each.

Published
2003

3. Effects of minerals on resistance of Bacillus subtilis spores to heat and hydrostatic pressure

Author

Igura, Noriyuki, Kamimura, Yuya, Islam, M. Shahidul, Shimoda, Mitsuya, and Hayakawa, Isao

Subjects
Ions -- Influence, Ions -- Physiological aspects, Hydrostatic pressure -- Influence, Hydrostatic pressure -- Physiological aspects, Spores (Bacteria) -- Physiological aspects, Bacillus subtilis -- Research, Biological sciences
Abstract

Results show that Bacillus subtilis IFO13722 spores exhibit resistance to hydrostatic pressure, which is associated with the mineral composition of the spores. Data indicate that while demineralization of the spores increase hydrostatic pressure resistance, remineralization with calcium or magnesium decreases it. However, remineralization with manganese or potassium does not lead to pressure resistance decrease.

Published
2003

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