Format

Send to

Choose Destination
See comment in PubMed Commons below
FEBS Lett. 1999 Sep 17;458(2):185-7.

Transient outward K+ currents across the plasma membrane of laticifer from Hevea brasiliensis.

Author information

1
Electrophysiologie des Membranes LPCMSP, Université Denis Diderot-Paris 7, France. bouteau@moka.ccr.jussieu.fr

Abstract

Non-inactivating outward rectifying K+ channel currents have been identified in a variety of plant cell types and species. The present study of laticifer protoplasts from Hevea brasiliensis, cells which are specialized for stress response, has revealed, through a switch-clamp method, an outward rectifying current displaying rapid inactivation. The inactivation depended on the external K+ concentration and on the voltage. This current inactivation appeared clearly different from all those previously described in plant cells and it shared homology with current kinetics of animal Shaker family channels. These results, given the recent cloning of plant K+ channel beta-subunits, shed new light on possible plant K+ channel regulation.

PMID:
10481062
[Indexed for MEDLINE]
Free full text
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Wiley
    Loading ...
    Support Center