Open AccessEffect of Sulfhydryl Reagents on K+ Efflux from Rose Cells
Author(s) -
Terence M. Murphy
Publication year - 1984
Publication title -
plant physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.554
H-Index - 312
eISSN - 1532-2548
pISSN - 0032-0889
DOI - 10.1104/pp.75.1.138
Subject(s) - efflux , chemistry , cysteine , rosa × damascena , reagent , biochemistry , chromatography , enzyme , essential oil
N-Ethylmaleimide causes a rapid efflux of K(+) from suspension-cultured cells of Rosa damascena. This efflux shows many characteristics of the ultraviolet-induced efflux of K(+), including the appearance of HCO(3) (-) together with the K(+) and inhibition by respiratory inhibitors. Cysteine inhibits the ultraviolet-induced efflux of K(+). These results are interpreted to mean that ultraviolet induces K(+) efflux through an alteration of sulfhydryl residues.