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Journal of Cell Science, Vol 30, Issue 1 319-330, Copyright © 1978 by Company of Biologists

JOURNAL ARTICLES

PH oscillations in cell suspensions of Dictyostelium discoideum: their relation to cyclic-amp signals

D Malchow, V Nanjundiah and G Gerisch

Cells of Dictyostelium discoideum known to release cyclic AMP (cAMP) rhythmically in the form of pulses, change with the same period of about 8 min the pH of their medium. The pH is used here as an indicator to investigate the effect of externally added cAMP pulses on the oscillations. Both a temporary increase in amplitude and a permanent phase shift can be induced. The phase-response curve indicates that the period can be increased and decreased by rhythmic stimulation with cAMP pulses.


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 Mol. Biol. CellHome page
M. T. Laub and W. F. Loomis
A Molecular Network That Produces Spontaneous Oscillations in Excitable Cells of Dictyostelium
Mol. Biol. Cell, December 1, 1998; 9(12): 3521 - 3532.
[Abstract] [Full Text]


© The Company of Biologists Ltd 1978