Cytoplasmic acidification with butyric acid does not alter the ionic conductivity of plasmodesmata
Date
2001
Authors
Holdaway-Clarke, T.
Walker, N.
Reid, R.
Hepler, P.
Overall, R.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Protoplasma: an international journal of cell biology, 2001; 215(01-Apr):184-190
Statement of Responsibility
T. L. Holdaway-Clarke, N. A. Walker, R. J. Reid, P. K. Hepler and R. L. Overall
Conference Name
Abstract
The effect of lowering cytoplasmic pH on the ionic conductivity of higher-plant plasmodesmata was investigated with corn (Zea mays L. cv. Black Mexican Sweet) suspension culture cells. Exposure to butyric acid decreased the cytoplasmic pH by 0.8 units. Intercellular communication was monitored by electrophysiological techniques that allowed the measurement of membrane resistances of sister cells and the electrical resistance of the plasmodesmata connecting them. The decrease in cytoplasmic pH did not affect the resistance of plasmodesmata, despite the fact that the butyric acid treatment more than doubled the concentration of cytoplasmic calcium. This is discussed in light of previous findings that increases in cytoplasmic calcium increase the electrical resistance of plasmodesmata.
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Dissertation Note
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Description
The original publication can be found at www.springerlink.com