Resistance to Gibberellin-Induced Changes of Lipid Fluidity in Wheat Embryo Mitochondrial Membranes as Assessed by the Fluorescent Probe 1, 6-Dipheny1-1, 3, 5-hexatriene

Abstract

As assessed by the fluorescent probe 1, 6-dipheny 1-1, 3, 5-hexatriene (DPH) which is specifically embedded in membrane lipids, mitochondria isolated from wheat embryos show no changes after either short or long term incubation with gibberellic acid. Results are discussed in relation to gibberellin-membrane interactions and the purported relative stability of the mitochondrial membrane.