Recent advances in the signalling function of glutathione on plants

Abstract

Plants favour a variety of signaling networks that maintain physiological functions of the plants for managing stressful conditions. Glutathione (GSH), a non-protein thiol compound, plays an important role in maintaining redox signaling in plants against stress conditions. However, a gap remains to state the functional activities of glutathione on hormonal signaling and growth of plants under stress conditions. In the past centuries, GSH gradually gained significant interest and importance to the researchers due to diverse functional activities in plants. To date, researches and reviews documented the protective role of GSH in plants against stress conditions. Nevertheless, signalling behaviour of GSH is still lacking with regards to the mechanism of GSH underlying the hormonal signaling to the plants. This review highlights the improvements made on the functions of GSH to the hormonal signaling in plants under stressful conditions.