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. 2018 Dec 21;9:1836. doi: 10.3389/fpls.2018.01836

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Copyright © 2018 Gullner, Komives, Király and Schröder.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Typical chemical reactions catalyzed by plant glutathione S-transferase (GST) enzymes. (A) Nucleophilic substitution reaction between 1-chloro-2,4-dinitrobenzene (CDNB) and reduced glutathione (GSH). CDNB has been extensively used as a xenobiotic model substrate for GST activity determination (Habig et al., 1974). (B) Nucleophilic addition reaction between cinnamic acid and GSH (Edwards and Dixon, 1991). (C) Reduction (detoxification) of fatty acid hydroperoxides to corresponding hydroxy derivatives by the peroxidase activity of GST as described by Bartling et al. (1993). The substrate 13(S)-hydroperoxy-9,11,15-octadecatrienoic acid was found to accumulate during membrane-damaging lipid peroxidation in infected plants (Wagner et al., 2002).