منابع مشابه
Bioelectric Potentials in Halicystis
The potential difference across the protoplasm of impaled cells of Halicystis is not affected by increase of oxygen tension in equilibrium with the sea water, nor with decrease down to about 1/10 its tension in the air (2 per cent O(2) in N(2)). When bubbling of 2 per cent O(2) is stopped, the P.D. drifts downward, to be restored on stirring the sea water, or rebubbling the gas. Bubbling 0.2 pe...
متن کاملBIOELECTRIC POTENTIALS IN HALICYSTIS VII. rIME EFFECTS OF LOW OXXGEN
Previous work I has shown that the existing or experimentally altered gradients of inorganic ions or other substances between the environment and the vacuolar sap of impaled ceils of ttalicystis have little influence upon the large and steady potential difference measurable across the protoplasm. The r61e of the latter, with its inherent gradients and asymmetries was therefore emphasized in the...
متن کاملProtoplasmic Potentials in Halicystis
The potential difference across the protoplasm of impaled cells of two American species of Halicystis is compared. The mean value for H. Osterhoutii is 68.4 mv.; that for H. ovalis is 79.7 mv., the sea water being positive to the sap in both. The higher potential of H. ovalis is apparently due to the higher concentration of KCl (0.3 M) in its vacuolar sap. When the KCl content of H. Osterhoutii...
متن کاملBioelectric Potentials in Halicystis Viii. the Effects of Light* by L. R. Blinks
Bioelectric effects of illumination are most familiar in animal organs like the retina, but they have also been known in plants since the work of Haake, t Klein, ~ Querton, s A. D. Wailer, 4 and especially J. C. Waller? Other workers e-l~ have also described responses, usually with a rather complex time course, which is difficult to analyze in any consistent fashion. Although some colorless pla...
متن کاملBioelectric Potentials in Valonia
In their influence on the P.D. across the protoplasm of Valonia macrophysa, Kütz., Li(+) and Cs(+) resemble Na(+), while Rb(+) and NH(4) (+) resemble K(+). The apparent mobilities of the ions in the external surface layer of Valonia protoplasm increase in the order: Cs(+), Na(+), Li(+) < Cl(-) < Rb(+) < K(+) < NH(4) (+).
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ژورنال
عنوان ژورنال: Journal of General Physiology
سال: 1938
ISSN: 1540-7748,0022-1295
DOI: 10.1085/jgp.22.2.255