Work

Interactions between biosynthesis, compartmentation and transport in the control of glutathione homeostasis and signalling

Year: 2002

Type: article

Abstract: Glutathione has numerous roles in cellular defence and in sulphur metabolism. These functions depend or impact on the concentration and/or redox state of leaf glutathione pools. Effective function requires homeostatic control of concentration and redox state, with departures from homeostasis acting as signals that trigger adaptive responses. Intercellular and intracellular glutathione pools are linked by transport across membranes. It is shown that glutathione can cross the chloroplast envelope at rates similar to the speed of biosynthesis. Control of glutathione concentration and redox state is therefore due to a complex interplay between biosynthesis, utilization, degradation, oxidation/reduction, and transport. All these factors must be considered in order to evaluate the significance of glutathione as a signalling component during development, abiotic stress, or pathogen attack.

Source: Journal of Experimental Botany

DOI: 10.1093/jxb/53.372.1283

Authors: G. Noctor, Leonardo Gomez, Hélène Vanacker, Christine H Foyer

Institution: Université Paris Diderot

Language: English

Topic: Nitrogen and Sulfur Effects on Brassica

Subfield: Agronomy and Crop Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

Open Access status: bronze

Funders: European Commission, Consejo Nacional de Investigaciones Científicas y Técnicas

OpenAlex ID: W2129984680