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. 1998 Oct 1;112(4):447–455. doi: 10.1085/jgp.112.4.447

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Transjunctional conductance is estimated by C _in and R _in in single pipette voltage clamp. (top) C _in decreased and R _in simultaneously increased as turgor pressure increased. C _in and R _in followed changes in pressure. R _s, 8.73 MΩ. (bottom) G _j is estimated from C _in and R _in measurements from the cell pair data based on the coupled two-cell model. C _m was set as half of C _in, 27.5 pF, at zero applied pressure, and R _s was 8.5 MΩ. The change in estimated G _j corresponds well to changes in C _in. The magnitude of G _j is larger than the largest obtained under double voltage clamp (∼500 nS), and may be due to the fact that cell impedances are not actually identical as required in the model.