Action de la septorine, phytotoxine synthétisée par Septoria nodorum, sur la phosphorylation oxydative dans les mitochondries isolées de Coléoptiles de Blé

Abstract

Septorin is a phytotoxin produced by Septoria nodorum. It reduces the growth of susceptible wheat cultivar "Etoile de choisy" seedlings. On mitochondria isolated from the same cultivar, the septorin induces changes in respiratory activities similar to the 2,4 dinitrophenol (2,4 D) effects. In this paper, the conditions of "in vitro" production of septorin and the steps of the purification are described.