Oxygen processing in photosynthesis: regulation and signalling

A - Papers appearing in refereed journals

Foyer, C. H. and Noctor, G. 2000. Oxygen processing in photosynthesis: regulation and signalling. New Phytologist. 146 (3), pp. 359-388. https://doi.org/10.1046/j.1469-8137.2000.00667.x

AuthorsFoyer, C. H. and Noctor, G.

The gradual but huge increase in atmospheric O-2 concentration that followed the evolution of oxygenic photosynthesis is one consequence that marks this event as one of the most significant in the earth's history. The high redox potential of the O-2/water couple makes it an extremely powerful electron sink that enables energy to be transduced in respiration. In addition to the tetravalent interconversion of O-2 and water, there exist a plethora of reactions that involve the partial reduction of O-2 or photodynamic energy transfer to produce active oxygen species (AOS). All these redox reactions have become integrated during evolution into the aerobic photosynthetic cell. This review considers photosynthesis as a whole-cell process, in which O-2 and AOS are involved in reactions at both photosystems, enzyme regulation in the chloroplast stroma, photorespiration, and mitochondrial electron transport in the light. In addition, oxidants and antioxidants are discussed as metabolic indicators of redox status, acting as sensors and signal molecules leading to acclimatory responses. Our aim throughout is to assess the insights gained from the application of mutagenesis and transformation techniques to studies of the role of O-2 and related redox components in the integrated regulation of photosynthesis.

KeywordsPlant Sciences
Year of Publication2000
JournalNew Phytologist
Journal citation146 (3), pp. 359-388
Digital Object Identifier (DOI)https://doi.org/10.1046/j.1469-8137.2000.00667.x
Open accessPublished as non-open access
Funder project or code413
Project: 014149
Publication dates
Online07 Jul 2008
Copyright licensePublisher copyright

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