The tripeptide thiol glutathione (γ-L-glutamyl-L-cysteinyl-glycine) is the most important sulfur containing antioxidant in plants and essential for plant defense against abiotic and biotic stress conditions. It is involved in the detoxification of reactive oxygen species (ROS), redox signaling, the modulation of defense gene expression, and the regulation of enzymatic activities. Even though changes in glutathione contents are well documented in plants and its roles in plant defense are well established, still too little is known about its compartment-specific importance during abiotic and biotic stress conditions. Due to technical advances in the visualization of glutathione and the redox state through microscopical methods some progress was made in the last few years in studying the importance of subcellular glutathione contents during stress conditions in plants. This review summarizes the data available on compartment-specific importance of glutathione in the protection against abiotic and biotic stress conditions such as high light stress, exposure to cadmium, drought, and pathogen attack (Pseudomonas, Botrytis, tobacco mosaic virus). The data will be discussed in connection with the subcellular accumulation of ROS during these conditions and glutathione synthesis which are both highly compartment specific (e.g., glutathione synthesis takes place in chloroplasts and the cytosol). Thus this review will reveal the compartment-specific importance of glutathione during abiotic and biotic stress conditions.
Compartment-specific importance of glutathione during abiotic and biotic stress
Published 2014 in Frontiers in Plant Science
ABSTRACT
PUBLICATION RECORD
- Publication year
2014
- Venue
Frontiers in Plant Science
- Publication date
2014-10-20
- Fields of study
Biology, Medicine, Environmental Science
- Identifiers
- External record
- Source metadata
Semantic Scholar, PubMed
CITATION MAP
EXTRACTION MAP
CLAIMS
CONCEPTS
- abiotic stress
Stress caused by non-living environmental factors such as intense light, cadmium exposure, or drought.
박진우 (dztg5apj7m) extraction뀨 (7c402c1b98) reviewB (s683577b42) reviewKiller Whale (322360f1c1) review - biotic stress
Stress caused by infectious biological agents discussed here in the context of plant defense.
Aliases: pathogen attack
박진우 (dztg5apj7m) extraction뀨 (7c402c1b98) reviewB (s683577b42) reviewKiller Whale (322360f1c1) review - chloroplasts
Photosynthetic organelles identified here as a site of glutathione synthesis.
박진우 (dztg5apj7m) extraction뀨 (7c402c1b98) reviewB (s683577b42) reviewKiller Whale (322360f1c1) review - compartment-specific glutathione
Glutathione levels considered separately within different cellular compartments.
Aliases: subcellular glutathione contents
박진우 (dztg5apj7m) extraction뀨 (7c402c1b98) reviewB (s683577b42) reviewKiller Whale (322360f1c1) review - cytosol
The aqueous intracellular compartment identified here as a site of glutathione synthesis.
박진우 (dztg5apj7m) extraction뀨 (7c402c1b98) reviewB (s683577b42) reviewKiller Whale (322360f1c1) review - glutathione
A tripeptide thiol antioxidant central to redox homeostasis in plant cells.
Aliases: GSH, γ-L-glutamyl-L-cysteinyl-glycine
박진우 (dztg5apj7m) extraction뀨 (7c402c1b98) reviewB (s683577b42) reviewKiller Whale (322360f1c1) review - glutathione synthesis
The biosynthetic production of glutathione within plant cells.
박진우 (dztg5apj7m) extraction뀨 (7c402c1b98) reviewB (s683577b42) reviewKiller Whale (322360f1c1) review - reactive oxygen species
Reactive oxygen-containing species considered in relation to stress and redox balance in plant compartments.
Aliases: ROS
박진우 (dztg5apj7m) extraction뀨 (7c402c1b98) reviewB (s683577b42) reviewKiller Whale (322360f1c1) review - subcellular ros accumulation
The compartment-dependent buildup of reactive oxygen species within plant cells.
박진우 (dztg5apj7m) extraction뀨 (7c402c1b98) reviewB (s683577b42) reviewKiller Whale (322360f1c1) review