U Schummer
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Explore the profile of U Schummer including associated specialties, affiliations and a list of published articles.
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18
Citations
42
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Recent Articles
1.
Schummer U, SCHIEFER H
FEMS Microbiol Lett
. 1991 Sep;
67(1):109-13.
PMID: 1778416
Chloride fluxes across the cytoplasmic membrane of Acholeplasma laidlawii were studied by using the chloride sensitive fluorescent dye, 6-methoxy-N-(sulfopropyl)quinolinium. Chloride was found to penetrate the membrane passively. Chloride flux was...
2.
Schummer U, SCHIEFER H
FEBS Lett
. 1988 Aug;
236(2):337-9.
PMID: 3410045
Anionic charges, cytochemically identified as lipid phosphate groups, cover the outer membrane surface of Spiroplasma floricola. They induce a negative membrane surface potential which affects the distribution of ions, including...
3.
Schummer U, SCHIEFER H
FEBS Lett
. 1987 Nov;
224(1):79-82.
PMID: 2890538
In Spiroplasma floricola, the transmembrane proton-motive potential delta p was studied. It is composed of a transmembrane electric potential difference, delta psi, and a transmembrane proton gradient, delta pH, according...
4.
Schummer U, SCHIEFER H
Arch Biochem Biophys
. 1986 Feb;
244(2):553-62.
PMID: 3947080
The influence of transmembrane ion fluxes on mycoplasma membrane potentials was studied. Electric membrane potential was calibrated vs fluorescence intensity of a potential-sensitive carbocyanine dye according to delta psi =...
5.
Schummer U, SCHIEFER H
Yale J Biol Med
. 1983 Sep;
56(5-6):413-8.
PMID: 6089453
The influence of transmembrane ion fluxes on mycoplasma membrane potentials was studied. Fluorescence intensity of potential-sensitive carbocyanine dyes was calibrated vs. electric membrane potential. Potassium and sodium ion diffusion potentials...
6.
Boisdequin D, Croughs P, Schummer U
Bull Soc Belge Ophtalmol
. 1983 Jan;
204-205:101-12.
PMID: 6675781
No abstract available.
7.
SCHIEFER H, Schummer U
Rev Infect Dis
. 1982 May;
4 Suppl:S65-70.
PMID: 7123058
The electrochemical proton gradient across mycoplasmal membranes was studied. The transmembrane proton-motive potential, delta p, is composed of two parameters, a transmembrane electric potential difference, delta psi, and a transmembrane...
8.
Schummer U, SCHIEFER H
Biochim Biophys Acta
. 1980 Aug;
600(3):993-7.
PMID: 7407155
A new method for the determination of electrical potentials across cellular membranes has been developed. In order to determine the membrane potential, cells were incubated in buffer solutions with increasing...
9.
Schummer U, SCHIEFER H, Gerhardt U
Biochim Biophys Acta
. 1980 Aug;
600(3):998-106.
PMID: 6773575
The membrane potentials of Acholeplasma laidlawii, Mycoplasma mycoides subsp. capri, Mycoplasma gallisepticum, Streptococcus faecalis and human erythrocytes have been determined by applying a novel technique. The membrane potentials were calculated...
10.
SCHIEFER H, Krauss H, Schummer U, Brunner H, Gerhardt U
Experientia
. 1978 Aug;
34(8):1011-2.
PMID: 700008
Surface carbohydrate structures, containing alpha-D-glucosyl or sterically closely related residues, were visualized on mycoplasma membranes by cytochemical staining procedure with concanavalin A and iron-dextran complexes.