Skip Navigation

This Article
Right arrow Full Text (PDF)
Right arrow E-letters: Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when E-letters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Disclaimer
Google Scholar
Right arrow Articles by LUCAS, W. J.
Right arrow Search for Related Content
PubMed
Right arrow Articles by LUCAS, W. J.
Agricola
Right arrow Articles by LUCAS, W. J.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© 1975 Oxford University Press

RESEARCH-ARTICLE

Analysis of the Diffusion Symmetry Developed by the Alkaline and Acid Bands which form at the Surface of Chara corallina Cells

W. J. LUCAS

Department of Botany, University of Adelaide Adelaide, South Australia 5001

The diffusion symmetry developed by the alkaline and aeid bands of Chara corallina was studied. The alkaline system developed a diffusion pattern which could not be fitted to the equation for a continuous point-source efflux. However, good correlation was obtained between experimental data and the diffusion equation for a hollow sphere. The calculated OH- efflux values, obtained using the equation of a continuous spherical-surface source, were checked against the influx values of H14 obtained under the same experimental conditions. Individual OH– band efflux values ranged from 0.07 to 5.95 pmol s–1 and total cell fluxes of 25 pmol cm–2 s–1 for OH- and H were obtained (in the presence of 0.5 mM NaHCO3).

The acid system developed a cylindrical diffusion pattern, but this could not be fitted to a mathematical equation. Numerical analysis will have to be employed to obtain values of H+ efflux.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 J Exp BotHome page
K. Kiyosawa
Ca2+ and phosphate releases from calcified Chara cell walls in concentrated KCl solution
J. Exp. Bot., February 1, 2001; 52(355): 223 - 229.
[Abstract] [Full Text] [PDF]


Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.