Electric characteristics of the cellular and nuclear membranes of the salivary gland cells of Drosophila funebris larvae
1. 1. The resting potential of salivary gland cells is in the range of 28–34 mV. The specific membrane resistance measured by two methods is 0·8 to 5 kΩ·cm 2. 2. 2. The resting potential of the nucleus does not exceed the values ± the standard error of the membrane potential of the cytoplasm. 3. 3....
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| Veröffentlicht in: | Comparative biochemistry and physiology. A, Comparative physiology Comparative physiology, 1971-07, Vol.39 (3), p.521,IN3,525-524,IN3,529 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
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| Online-Zugang: | Volltext |
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| Zusammenfassung: | 1.
1. The resting potential of salivary gland cells is in the range of 28–34 mV. The specific membrane resistance measured by two methods is 0·8 to 5 kΩ·cm
2.
2.
2. The resting potential of the nucleus does not exceed the values ± the standard error of the membrane potential of the cytoplasm.
3.
3. The maximum value of the specific resistance of the nuclear membrane is 10 Ω·cm
2.
4.
4. The appearance of several abrupt changes in potential as the cell is impaled by an electrode is explained by the rupturing of the cell membrane (shunting of the membrane resistance) and by changes in the electrode potential.
5.
5. Before pupation there is an electrical uncoupling of the salivary gland cells. |
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| ISSN: | 0300-9629 |
| DOI: | 10.1016/0300-9629(71)90315-X |