ZIB

1

Digitale Medien

Coupling of ion transport in green cells ofAtriplex spongiosa leaves to energy sources in the light and in the dark (1970)

Lüttge, Ulrich ; Pallaghy, Charles K. ; Osmond, C. B.

Springer

The journal of membrane biology 2 (1970), S. 17-30

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ISSN: 1432-1424

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie , Chemie und Pharmazie

Notizen: Summary The coupling of ion transport to energy sources in the light and in the dark in green cells ofAtriplex spongiosa leaves was investigated using light of different qualities, an inhibitor of electron transport (dichlorophenyl dimethyl urea), and an uncoupler (p-CF3O-carbonyl cyanide phenylhydrazone). Two different mechanisms of ion uptake were, distinguished. (1) A light-dependent Cl− pump which is linked to light-dependent K+ uptake. The energy for this pump is probably derived from photosynthetic electron transport or from nicotinamide adenine dinucleotide phosphate, reduced form. This mechanism is dichlorophenyl dimethyl urea-sensitive and enhanced by uncouplers. (2) A mechanism independent of light, which operates at the same rate in the light and in the dark. This mechanism is sensitive to uncouplers. It is probably aK−Na exchange mechanism since K+ and Cl− uptake and a small net uptake of H+ are balanced by Na+ loss.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01869847

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2

Digitale Medien

Effect of poly-L-lysine on potassium fluxes in red beet tissue (1970)

Osmond, C. B. ; Laties, G. G.

Springer

The journal of membrane biology 2 (1970), S. 85-94

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ISSN: 1432-1424

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie , Chemie und Pharmazie

Notizen: Summary Poly-L-lysine concentrations (10−6 m) which cause slight leakage of pigment from beet cells completely disrupt the kinetics of*K (labeled) absorption at 25°C in the range 0.01 to 50mm KCl. Lower concentrations of polylysine (10−7 to 10−9 m) interfere with potassium fluxes at both cell membranes, initially increasing efflux across the plasma membrane and decreasing the capacity of the cytoplasm to retain ions during flux experiments at 2°C. At 25°C, these concentrations of polylysine increase*K (labeled) absorption from 0.2mm KCl, but not from 10mm KCl. These responses are discussed in relation to ion transport via the three-compartment in-series model proposed for plant cells. Particular emphasis is placed on the role of the plasma membrane in K transport from solutions of low concentration.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01869852

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3

Digitale Medien

Management in Britain (1971)

Osmond, C. N.

Oxford, UK : Blackwell Publishing Ltd

Journal of management studies 8 (1971), S. 0

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ISSN: 1467-6486

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Wirtschaftswissenschaften

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1467-6486.1971.tb00839.x

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4

Digitale Medien

Carbon Isotope Discrimination in Photosynthesis of CAM Plants (1973)

OSMOND, C. B. ; ALLAWAY, W. G. ; SUTTON, B. G. ; [weitere]

[s.l.] : Nature Publishing Group

Nature 246 (1973), S. 41-42

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] Here we show that the 813C value for total carbon in CAM plants undergoes significant and predictable responses to controlled growth conditions. The S13C value is correlated with other physiological events to demonstrate that the growth conditions determine the expression of C3-like or C4-Hke ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/246041a0

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5

Digitale Medien

PyruvateP i dikinase in crassulacean acid metabolism (1971)

Kluge, M. ; Osmond, C. B.

Springer

Naturwissenschaften 58 (1971), S. 414-415

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ISSN: 1432-1904

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie , Chemie und Pharmazie , Allgemeine Naturwissenschaft

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00591524

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