Plant glutathione transferases and light

Ágnes Gallé, Zalán Czékus, Krisztina Bela, E. Horváth, Attila Ördög, J. Csiszár, Péter Poór

Research output: Contribution to journalReview article

4 Citations (Scopus)

Abstract

The activity and expression of glutathione transferases (GSTs) depend on several less-known endogenous and well-described exogenous factors, such as the developmental stage, presence, and intensity of different stressors, as well as on the absence or presence and quality of light, which to date have received less attention. In this review, we focus on discussing the role of circadian rhythm, light quality, and intensity in the regulation of plant GSTs. Recent studies demonstrate that diurnal regulation can be recognized in GST activity and gene expression in several plant species. In addition, the content of one of their co-substrates, reduced glutathione (GSH), also shows diurnal changes. Darkness, low light or shade mostly reduces GST activity, while high or excess light significantly elevates both the activity and expression of GSTs and GSH levels. Besides the light-regulated induction and dark inactivation of GSTs, these enzymes can also participate in the signal transduction of visible and UV light. For example, red light may alleviate the harmful effects of pathogens and abiotic stressors by increasing GST activity and expression, as well as GSH content in leaves of different plant species. Based on this knowledge, further research on plants (crops and weeds) or organs and temporal regulation of GST activity and gene expression is necessary for understanding the complex regulation of plant GSTs under various light conditions in order to increase the yield and stress tolerance of plants in the changing environment.

Original languageEnglish
Article number1944
JournalFrontiers in Plant Science
Volume9
DOIs
Publication statusPublished - Jan 9 2019

Fingerprint

glutathione
gene expression
circadian rhythms
shades
darkness
pathogens
crops
organs
deactivation
leaves
enzymes
induction

Keywords

  • Circadian regulation
  • Cis-acting elements
  • Dark
  • Glutathione transferase
  • Light

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Plant glutathione transferases and light. / Gallé, Ágnes; Czékus, Zalán; Bela, Krisztina; Horváth, E.; Ördög, Attila; Csiszár, J.; Poór, Péter.

In: Frontiers in Plant Science, Vol. 9, 1944, 09.01.2019.

Research output: Contribution to journalReview article

Gallé, Ágnes ; Czékus, Zalán ; Bela, Krisztina ; Horváth, E. ; Ördög, Attila ; Csiszár, J. ; Poór, Péter. / Plant glutathione transferases and light. In: Frontiers in Plant Science. 2019 ; Vol. 9.
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