| Literature DB >> 16659860 |
R E Cleland1, H B Prins, J R Harper, N Higinbotham.
Abstract
The effects of the plant growth substances indoleacetic acid (IAA) and fusicoccin on the transmembrane potential of Avena coleoptile cells (at 27-29 C) were studied. Fusicoccin caused hyperpolarization of the membrane potential which started after a lag of less than 20 seconds, and which on average reached -49 mv at an external K(+) concentration of 1 mm and -75 mv at 0.1 mm K(+). IAA caused a hyperpolarization of -25 mv starting after a lag of 7 to 8 minutes. These results suggest that fusicoccin and IAA both activate electrogenic H(+) extrusion.Entities:
Year: 1977 PMID： 16659860 PMCID： PMC542411 DOI： 10.1104/pp.59.3.395
Source DB: PubMed Journal: Plant Physiol ISSN： 0032-0889 Impact factor: 8.340