On the move: redox-dependent protein relocation in plants

Foyer, Christine H.; Baker, Alison; Wright, Megan H.; Sparkes, Imogen; Mhamdi, Amna; Schippers, Jos H. M.; Breusegem, Frank Van

doi:10.1093/jxb/erz330

Cited by 49 publications

(33 citation statements)

References 115 publications

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“…In general, plant stress is characterized by an increase of reactive oxygen species (ROS) that are harmful to plants, requiring an efficient ROS scavenging system to maintain redox system balance. Antioxidant enzymes such as SOD, APX, and GR are among the dominant H 2 O 2 scavengers in chloroplasts and mitochondria (Foyer et al, 2020). Gene expression during grape berry ripening showed an increase of a Cu/ZnSOD and a MnSOD among the 12 investigated SODs (Guo et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

“…GSTs belong to a super family of proteins encoded by a large gene family (Mhamdi et al, 2010). GSTs have been reported to respond to a wide range of biotic stresses and function to detoxify toxic substances, respond to stress and pathogen attack, and attenuate oxidative stress (Foyer et al, 2020). There is also a tight link between GSTs and plant defense hormones.…”

Section: Discussionmentioning

confidence: 99%

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Proteomic Changes in Antioxidant System in Strawberry During Ripening

et al. 2020

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To investigate the strawberry antioxidant defense system during fruit ripening, a targeted quantitative proteomic approach using multiple reaction monitoring (MRM) was developed to investigate targeted proteins in the antioxidant enzyme system in strawberry fruit. We investigated 46 proteins and isoforms with 73 identified peptides which may be involved in this antioxidant enzyme system. Among the proteins that changed during ripening, aldo/keto reductase (AKR), superoxide dismutase (SOD) and glutathione transferase (GT) increased significantly, while dehydroascorbate reductase, 2-Cys peroxiredoxin, catalase (CAT), 1-Cys peroxiredoxin and L-ascorbate peroxidase (APX) decreased significantly. These results suggest that fruit ripening of strawberry activates the enzymes of an SOD/glutathione metabolism system. The methodologies used in this study will be useful for systematically characterizing the role of antioxidant enzymes in fruit ripening of other plants.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Proteomic Changes in Antioxidant System in Strawberry During Ripening

et al. 2020

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“…The ROS wave could therefore travel through the plant during systemic signaling, switching the state of different plant cells and tissues along its path from a ‘normal’ growth and development state to an ‘alert’ or ‘stress’ state, thereby triggering the inhibition of growth and development, and directing resources from normal processes to stress metabolism, acclimation and defense. In this respect, it would be very interesting to identify specific proteins that sense ROS and other redox changes in cells, and to start linking these proteins with the many effects of ROS on different cellular processes in different local and systemic tissues (Mittler, ; Foyer et al , ).…”

Section: The Ros Wave a Rapid And Widespread Systemic Signal Triggermentioning

confidence: 99%

Rapid systemic signaling during abiotic and biotic stresses: is the ROS wave master of all trades?

2020

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Rapidly communicating the perception of an abiotic stress event, wounding or pathogen infection, from its initial site of occurrence to the entire plant, i.e. rapid systemic signaling, is essential for successful plant acclimation and defense. Recent studies highlighted an important role for several rapid whole-plant systemic signals in mediating plant acclimation and defense during different abiotic and biotic stresses. These include calcium, reactive oxygen species (ROS), hydraulic and electric waves. Although the role of some of these signals in inducing and coordinating whole-plant systemic responses was demonstrated, many questions related to their mode of action, routes of propagation and integration remain unanswered. In addition, it is unclear how these signals convey specificity to the systemic response, and how are they integrated under conditions of stress combination. Here we highlight many of these questions, as well as provide a proposed model for systemic signal integration, focusing on the ROS wave.

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“…As signaling molecules, ROS have a special importance during developmental and physiological processes in plants. A redox compartmentalization exists for a proper function of ROS-dependent signaling pathways and ROS production, which depend on the reaction with other reactive species and interaction with antioxidants and scavengers ( Waszczak et al, 2018 ; Foyer et al, 2020 ). Mitochondria generate energy in form of ATP by oxidative phosphorylation during glucose metabolism, a process coupled with mitochondrial respiration through a generated transmembrane potential via mitochondrial complexes I to IV of the electron transport chain (ETC), with the final result of the four-electron reduction of O 2 to H 2 O. ROS are generated as byproducts after electron leaking at complex I and III ( Hernández et al, 1993 ; Noctor et al, 2007 ) and under specific conditions at complex II during the reverse electron transport ( Turrens, 2003 ).…”

Section: Mitochondrial Ros Rns and H 2 S Generatmentioning

confidence: 99%

Thioredoxin Network in Plant Mitochondria: Cysteine S-Posttranslational Modifications and Stress Conditions

2020

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Plants are sessile organisms presenting different adaptation mechanisms that allow their survival under adverse situations. Among them, reactive oxygen and nitrogen species (ROS, RNS) and H 2 S are emerging as components not only of cell development and differentiation but of signaling pathways involved in the response to both biotic and abiotic attacks. The study of the posttranslational modifications (PTMs) of proteins produced by those signaling molecules is revealing a modulation on specific targets that are involved in many metabolic pathways in the different cell compartments. These modifications are able to translate the imbalance of the redox state caused by exposure to the stress situation in a cascade of responses that finally allow the plant to cope with the adverse condition. In this review we give a generalized vision of the production of ROS, RNS, and H 2 S in plant mitochondria. We focus on how the principal mitochondrial processes mainly the electron transport chain, the tricarboxylic acid cycle and photorespiration are affected by PTMs on cysteine residues that are produced by the previously mentioned signaling molecules in the respiratory organelle. These PTMs include S-oxidation, S-glutathionylation, Snitrosation, and persulfidation under normal and stress conditions. We pay special attention to the mitochondrial Thioredoxin/Peroxiredoxin system in terms of its oxidation-reduction posttranslational targets and its response to environmental stress.

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On the move: redox-dependent protein relocation in plants

Abstract: Some proteins move between different intracellular compartments such as the cytosol or chloroplasts and the nucleus in response to redox triggers. Redox post-translational modifications control the intercompartmental switching of proteins.

Cited by 49 publications

References 115 publications

Proteomic Changes in Antioxidant System in Strawberry During Ripening

Proteomic Changes in Antioxidant System in Strawberry During Ripening

Rapid systemic signaling during abiotic and biotic stresses: is the ROS wave master of all trades?

Thioredoxin Network in Plant Mitochondria: Cysteine S-Posttranslational Modifications and Stress Conditions

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