Plant Cell Reports

, Volume 25, Issue 9, pp 997–1005

Characterization of two Arabidopsis thaliana glutathione S-transferases

  • Eliana Nutricati
  • Antonio Miceli
  • Federica Blando
  • Luigi De Bellis
Biotic and Abiotic Stress


Glutathione S-transferases (GST) are multifunctional proteins encoded by a large gene family, divided on the basis of sequence identity into phi, tau, theta, zeta and lambda classes. The phi and tau classes are present only in plants. GSTs appear to be ubiquitous in plants and are involved in herbicide detoxification and stress response, but little is known about the precise role of GSTs in normal plant physiology and during biotic and abiotic stress response. Two cDNAs representing the two plant classes tau and phi, AtGSTF9 and AtGSTU26, were expressed in vitro and the corresponding proteins were analysed. Both GSTs were able to catalyse a glutathione conjugation to 1-chloro-2,4-dinitrobenzene (CDNB), but they were inactive as transferases towards p-nitrobenzylchloride (pNBC). AtGSTF9 showed activity towards benzyl isothiocyanate (BITC) and an activity as glutathione peroxidase with cumene hydroperoxide (CumHPO). AtGSTU26 was not active as glutathione peroxidase and towards BITC. RT-PCR analysis was used to evaluate the expression of the two genes in response to treatment with herbicides and safeners, chemicals, low and high temperature. Our results reveal that AtGSTU26 is induced by the chloroacetanilide herbicides alachlor and metolachlor and the safener benoxacor, and after exposure to low temperatures. In contrast, AtGSTF9 seems not to be influenced by the treatments employed.


Arabidopsis thaliana Glutathione S-transferase Stress 



Arabidopsis Genome Initiative


Benzyl isothiocyanate




Cumene hydroperoxide






Glutathione S-transferase


Methyl jasmonic acid


2-(p-Chlorophenoxy)-2-methylpropionic acid




Reverse transcript polymerase chain reaction


Rapid Translation System


Salicylic acid


Systemic acquired resistance


Sodium dodecyl sulphate polyacrylamide gel electrophoresis




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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • Eliana Nutricati
    • 1
  • Antonio Miceli
    • 1
  • Federica Blando
    • 2
  • Luigi De Bellis
    • 1
  1. 1.Dipartimento di Scienze e Tecnologie Biologiche ed AmbientaliUniversità degli Studi di LecceLecceItaly
  2. 2.Istituto di Scienze delle Produzioni AlimentariCNRLecceItaly

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