What role does cell membrane surface potential play in ion-plant interactions

Wang, Peng, Zhou, Dong-Mei, Li, Lian-Zhen and Li, Dan-Dan (2009) What role does cell membrane surface potential play in ion-plant interactions. Plant Signaling and Behavior, 4 1: 42-43.

Attached Files (Some files may be inaccessible until you login with your UQ eSpace credentials)
Name Description MIMEType Size Downloads
UQ310891_OA.pdf Full text (open access) application/pdf 142.89KB 1
Author Wang, Peng
Zhou, Dong-Mei
Li, Lian-Zhen
Li, Dan-Dan
Title What role does cell membrane surface potential play in ion-plant interactions
Journal name Plant Signaling and Behavior   Check publisher's open access policy
ISSN 1559-2316
Publication date 2009-01
Year available 2009
Sub-type Article (original research)
Open Access Status File (Publisher version)
Volume 4
Issue 1
Start page 42
End page 43
Total pages 2
Place of publication Austin, United States
Publisher Landes Bioscience
Language eng
Subject 1110 Nursing
Formatted abstract
Almost all cell membrane surfaces (CMS) are intrinsically negatively charged. These negative charges create a surface electrical potential (φ0) which affects ion concentrations at the CMS and consequently affects the phytotoxicity of metallic cations and metalloid anions in different ways. The φ0 is also controlled by the ionic composition of the bulk-phase medium (BM). Common cations, especially H+, Ca 2+ and Mg2+, can reduce the negativity of φ0 by ionic screening and binding. Treatments that reduce the negativity of φ0 would reduce the surface activity of Cu 2+ ({Cu2+}0) and increase the surface activity of arsenate ({As(V)}0) at the CMS, and consequently alleviation of Cu2+ toxicity but aggravation As toxicity would be expected. It is the φ0, rather than site-specific competition, that plays the principal role in ionic interactions and biotic effects.
Keyword Arsenate
Biotic ligand model
Cell membrane surface potential
Gouy-Chapman-Stern model
Ion-plant interaction
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Agriculture and Food Sciences
Version Filter Type
Citation counts: Scopus Citation Count Cited 0 times in Scopus Article
Google Scholar Search Google Scholar
Created: Tue, 24 Sep 2013, 17:16:26 EST by Peng Wang on behalf of School of Agriculture and Food Sciences