Toggle Main Menu Toggle Search

Open Access padlockePrints

Coordinate induction of glutathione biosynthesis and glutathione-metabolising enzymes is correlated with salt tolerance in tomato

Lookup NU author(s): Professor Christine Foyer


Full text for this publication is not currently held within this repository. Alternative links are provided below where available.


The acclimation of reduced glutathione (GSH) biosynthesis and GSH-utilizing enzymes to salt stress was studied in two tomato species that differ in stress tolerance. Salt increased GSH content and GSH:GSSG (oxidized glutathione) ratio in oxidative stress-tolerant Lycopersicon pennellii (Lpa) but not in Lycopersicon esculentum (Lem). These changes were associated with salt-induced upregulation of γ-glutamylcysteine synthetase protein, an effect which was prevented by preincubation with buthionine sulfoximine. Salt treatment induced glutathione peroxidase and glutathione-S-transferase but not glutathione reductase activities in Lpa. These results suggest a mechanism of coordinate upregulation of synthesis and metabolism of GSH in Lpa, that is absent from Lem.

Publication metadata

Author(s): Foyer CH; Mittova V; Kiddle G; Theodoulou FL; Gomez L; Volokita M; Tal M; Guy M

Publication type: Article

Publication status: Published

Journal: FEBS Letters

Year: 2003

Volume: 554

Issue: 3

Pages: 417-421

ISSN (print): 0014-5793

ISSN (electronic): 1873-3468

Publisher: Elsevier BV


DOI: 10.1016/S0014-5793(03)01214-6


Altmetrics provided by Altmetric