This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via CrossRef Citing Articles via Google Scholar Google Scholar Articles by Ferrier, J. M. Articles by Dainty, J. Search for Related Content PubMed PubMed Citation Articles by Ferrier, J. M. Articles by Dainty, J. Agricola Articles by Ferrier, J. M. Articles by Dainty, J.

Articles

Plasmalemma Voltage Noise in Chara corallina¹

William J. Lucas^b

Jack Dainty^c

^a Department of Botany, University of Toronto, Ontario M5S 1A1 Canada, Department of Botany, University of California, Davis, California 95616, Department of Botany, University of Toronto

Voltage noise analysis is applied to plasmalemma ion transport in Chara corallina. There is a component in the noise power spectrum that is probably associated with current fluctuations within passive transport channels, and another component that may be associated either with fluctuations in the number of open channels, or with active transport. The data allow the calculation of time constants that may be attributable to molecular level events in these transport processes.

¹ This work was supported by Connaught Fund (University of Toronto) and National Research Council of Canada (A6459) grants to J. D.