Redox Regulation in Photosynthetic Organisms: Signaling, Acclimation, and Practical Implications

By Christine H. Foyer, G. Noctor. Antioxidants and Redox Signaling, 2009

1,409 citations recorded by the source corpus.

Reactive oxygen species (ROS) have multifaceted roles in the orchestration of plant gene expression and gene-product regulation. Cellular redox homeostasis is considered to be an “integrator” of information from metabolism and the environment controlling plant growth and acclimation responses, as well as cell suicide events. The different ROS forms influence gene expression in specific and sometimes antagonistic ways. Low molecular antioxidants (e.g., ascorbate, glutathione) serve not only to limit the lifetime of the ROS signals but also to participate in an extensive range of other redox signaling and regulatory functions. In contrast to the low molecular weight antioxidants, the “redox” states of components involved in photosynthesis such as plastoquinone show rapid and often transient shifts in response to changes in light and other environmental signals. Whereas both types of “redox regulation” are intimately linked through the thioredoxin, peroxiredoxin, and pyridine nucleotide pools, they also act independently of each other to achieve overall energy balance between energy-producing and energy-utilizing pathways. This review focuses on current knowledge of the pathways of redox regulation, with discussion of the somewhat juxtaposed hypotheses of “oxidative damage” versus “oxidative signaling,” within the wider context of physiological function, from plant cell biology to potential applications. Antioxid. Redox Signal. 11, 861–905.

Subfields: Molecular Biology, Plant Science

View Paper: https://www.semanticscholar.org/paper/3fa772c422d9bd85e451822e4fcc58c98d5c481d

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Citations in the corpus

Antioxidative Defense Potential to Salinity in the Euhalophyte Salicornia brachiata (2010, background): “GR plays an important role in controlling endogenous H2O2 content through an oxidoreduction cycle involving glutathione and ascorbate (Foyer and Noctor 2009).”
Abiotic stress and plant responses from the whole vine to the genes. (2010, background): “2008), thioredoxin (1615681_at), a chloroplast protein involved in redox regulation of photosynthesis and stress responses (Foyer et al. 2009), LTP (1616990_s_at), a lipid transfer protein that may be involved in signalling, and a flavonol-oglucosyl transferase (1618155_at).”
Catalase function in plants: a focus on Arabidopsis mutants as stress-mimic models. (2010, background): “In plants, the situation is further complicated by the multiplicity of ROS-producing pathways and the constitutively high capacity of the antioxidative system (Foyer and Noctor, 2009).”
Interplay Between Abscisic Acid and Jasmonic Acid and its Role in Water-oxidative Stress in Wild-type, ABA-deficient, JA-deficient, and Ascorbate-deficient Arabidopsis Plants (2011, background): “JA interacts strongly with redox processes (Foyer and Noctor 2009), and it has been shown that JA enhances synthesis of ascorbate and glutathione (Table 1).”
Interactions between hormone and redox signalling pathways in the control of growth and cross tolerance to stress (2013, background): “olerance to a wide spectrum of stresses (Foyer and Noctor, 2009).”
Current Issues in Plant Cryopreservation (2012, background): “Ascorbic acid is the most abundant water-soluble antioxidant in plant cells (Foyer & Noctor, 2009).”
Reactive oxygen species in plants: their generation, signal transduction, and scavenging mechanisms (2011, background): “Chl associated with the electron transport chain (ETC) is the primary source of 1O2, which may also arise as a byproduct of LP, which is catalyzed by lipoxygenase (LOX, Fig. 2, Asada, 2006; Foyer and Noctor, 2009).”
Plant tolerance to high temperature in a changing environment: scientific fundamentals and production of heat stress-tolerant crops (2013, background): “The ROS related impairment of important mitochondrial and chloroplast electron transport chains associated with carbon metabolism results in reduced power and energy production (Foyer and Noctor, 2009).”