Fusicoccin (FC) is a well known toxin acting as a 14-3-3 protein-mediated activator of the plasma membrane H+-ATPase and it has been widely used to study the regulatory mechanism and the physiological role of this enzyme's activity. Recently, FC has been shown to induce other responses similar to those occurring under a stress condition, perhaps not strictly dependent on the activation of proton extrusion. In this paper we report that in cultured sycamore (Acer pseudoplatanus L.) cells FC induces H2O2 overproduction as well as other novel, presumably related responses, such as the activation of the alternative oxidase and the leakage of cytochrome c from the mitochondria, accompanied by a decrease of the cytochrome pathway capacity. The relationship between H2O2 production and other phenomena has also been studied by means of exogenously added H2O2

Malerba, M., Crosti, P., Cerana, R., Bianchetti, R. (2003). Fusicoccin stimulates the production of H2O2 in sycamore cell cultures and induces alternative respiration and cytochrome c leakage from mitochondria. PHYSIOLOGIA PLANTARUM, 119(4), 480-488 [10.1046/j.1399-3054.2003.00194.x].

Fusicoccin stimulates the production of H2O2 in sycamore cell cultures and induces alternative respiration and cytochrome c leakage from mitochondria

Malerba, M;Crosti, P;Cerana, R;
2003

Abstract

Fusicoccin (FC) is a well known toxin acting as a 14-3-3 protein-mediated activator of the plasma membrane H+-ATPase and it has been widely used to study the regulatory mechanism and the physiological role of this enzyme's activity. Recently, FC has been shown to induce other responses similar to those occurring under a stress condition, perhaps not strictly dependent on the activation of proton extrusion. In this paper we report that in cultured sycamore (Acer pseudoplatanus L.) cells FC induces H2O2 overproduction as well as other novel, presumably related responses, such as the activation of the alternative oxidase and the leakage of cytochrome c from the mitochondria, accompanied by a decrease of the cytochrome pathway capacity. The relationship between H2O2 production and other phenomena has also been studied by means of exogenously added H2O2
Articolo in rivista - Articolo scientifico
Cytochrome c, fusicoccin, hydrogen peroxide, sycamore cells
English
2003
119
4
480
488
none
Malerba, M., Crosti, P., Cerana, R., Bianchetti, R. (2003). Fusicoccin stimulates the production of H2O2 in sycamore cell cultures and induces alternative respiration and cytochrome c leakage from mitochondria. PHYSIOLOGIA PLANTARUM, 119(4), 480-488 [10.1046/j.1399-3054.2003.00194.x].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/780
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