Skip Navigation

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
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
Google Scholar
Right arrow Articles by Szarek, I.
Right arrow Articles by Trebacz, K.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Szarek, I.
Right arrow Articles by Trebacz, K.
Agricola
Right arrow Articles by Szarek, I.
Right arrow Articles by Trebacz, K.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Plant and Cell Physiology, 1999, Vol. 40, No. 12 1280-1286
© 1999

The Role of Light-Induced Membrane Potential Changes in Guttation in Gametophytes of Asplenium trichomanes

Iwona Szarek and Kazimierz Trebacz

Department of Biophysics, Institute of Biology, Maria Curie-Sklodowska University Akademicka 19, PL-20-033 Lublin, Poland

Gametophytes of the fern Asplenium trichomanes exhibit guttation when illuminated. Membrane potential changes evoked by light were measured in the presence of ion channel and proton pump inhibitors to elucidate the nature of the response and a possible link to guttation. Light-induced depolarization was suppressed by the anion channel inhibitors: anthracene-9-carboxylic acid and niflumic acid. Potassium channel blockers: TEA and Ba2+ caused an increase of the amplitude of light-induced membrane potential changes. Calcium channel inhibitors, La3+ Gd3+ diltiazem, nifedipine and verapamil had no significant effect on the membrane potential changes. Similarly, proton pump inhibitors, diethylstilbestrol and vanadate, had only minor effects on the response. A possible role of Cl– and K+ fluxes in light-induced guttation is discussed.

(Received July 8, 1999; Accepted October 13, 1999)
Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




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.