Redox sensing and signalling associated with reactive oxygen in chloroplasts, peroxisomes and mitochondria

A - Papers appearing in refereed journals

Foyer, C. H. and Noctor, G. 2003. Redox sensing and signalling associated with reactive oxygen in chloroplasts, peroxisomes and mitochondria. Physiologia Plantarum. 119 (3), pp. 355-364.

AuthorsFoyer, C. H. and Noctor, G.

Chloroplasts and mitochondria are the powerhouses of photosynthetic cells. The oxidation-reduction (redox) cascades of the photosynthetic and respiratory electron transport chains not only provide the driving forces for metabolism but also generate redox signals, which participate in and regulate every aspect of plant biology from gene expression and translation to enzyme chemistry. Plastoquinone, thioredoxin and reactive oxygen have all been shown to have signalling functions. Moreover, the intrinsic involvement of molecular oxygen in electron transport processes with the inherent generation of superoxide, hydrogen peroxide and singlet oxygen provides a repertoire of additional extremely powerful signals. Accumulating evidence implicates the major redox buffers of plant cells, ascorbate and glutathione, in redox signal transduction. The network of redox signals from energy-generating organelles orchestrates metabolism to adjust energy production to utilization, interfacing with hormone signalling to respond to environmental change at every stage of plant development.

KeywordsPlant Sciences
Year of Publication2003
JournalPhysiologia Plantarum
Journal citation119 (3), pp. 355-364
Digital Object Identifier (DOI)
Open accessPublished as non-open access
Funder project or code413
Redox signalling and oxidative-stress-mediated control of plant growth and development
Publication dates
Online09 Oct 2003
Copyright licensePublisher copyright

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