Defense Reactions of Infected Plants: Roles of Glutathione and Glutathione S-Transferase Enzymes

Gullner, G. and Kőmíves, T. (2006) Defense Reactions of Infected Plants: Roles of Glutathione and Glutathione S-Transferase Enzymes. Acta Phytopathologica et Entomologica Hungarica, 41 (1-2). pp. 3-10. ISSN 0238-1249

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Abstract

In recent years, the importance of the endogenous plant tripeptide glutathione (GSH) has been increasingly recognized in plant-pathogen interactions due to its contribution to various signaling and defense mechanisms. In this paper the recent developments in the research for possible roles of GSH in infected plants are summarized. GSH participates not only in antioxidative and detoxification reactions but also in redox regulation of the expression of protective genes in infected cells. Several lines of evidence suggest that glutathione S-transferase (GST) isoenzymes also have an important role in plant disease resistance, but their exact functions have remained elusive.

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