Factors Affecting the Fluxes of Potassium and Chloride Ions in Nitella translucens
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چکیده
منابع مشابه
Factors Affecting the Fluxes of Potassium and Chloride Ions in Nitella translucens
A more complete study of ionic concentrations and fluxes in the giant internodal cells of Nitella translucens has been made. The vacuolar concentrations were 76 mM K and 170 mM Cl. The content of the chloroplast layer was 135 mmicromoles K/cm(2) and 215 mmicromoles Cl/cm(2); in a layer 9 micro thick these correspond to concentrations of 150 mM K and 240 mM Cl. Such a high level of chloride requ...
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A more complete study of ionic concentrations and fluxes in the giant internodal cells of Nitella translucens has been made. The vacuolar concentrations were 76 mM K and 170 mM C1. The content of the chloroplast layer was 135 m#moles K/cm 2 and 215 m/~moles C1/cm2; in a layer 9 # thick these correspond to concentrations of 150 mM K and 240 rn~ C1. Such a high level of chloride requires active t...
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The ionic state of single internodal cells of a fresh water characean, Nitella translucens, has been studied. In mature cells the vacuolar concentrations were 78 mM K, 60 mM Na, and 151 mM Cl, compared with concentrations of 0.1 mM K, 1.0 mM Na, and 1.3 mM Cl in the bathing medium. The results suggest an active influx of potassium and an active efflux of sodium at the plasmalemma, and an active...
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Alternating bands of acid and base formation have been detected along the length of the internodal cell of Nitella clavata when it is illuminated, while in the dark this phenomenon is minimal. Chloride influx occurs only or largely in the acid-extruding regions, and this is also a light-dependent ion movement. Chloride efflux is slightly dependent on illumination and is not localized as are H(+...
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In isolated bundles of external intercostal muscle from normal goats and goats with hereditary myotonia the following were determined: concentrations and unidirectional fluxes of Na+, K+, and C-, extracellular volume, water content, fiber geometry, and core-conductor constants. No significant difference between the two groups of preparations was found with respect to distribution of fiber size,...
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ژورنال
عنوان ژورنال: Journal of General Physiology
سال: 1964
ISSN: 1540-7748,0022-1295
DOI: 10.1085/jgp.47.5.859