Oxygen and ROS in Photosynthesis

Oxygen is a natural acceptor of electrons in the respiratory pathway of aerobic organisms and in many other biochemical reactions. Aerobic metabolism is always associated with the formation of reactive oxygen species (ROS). ROS may damage biomolecules but are also involved in regulatory functions of...

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Bibliographic Details
Published in:Plants (Basel) 2020-01, Vol.9 (1), p.91
Main Authors: Khorobrykh, Sergey, Havurinne, Vesa, Mattila, Heta, Tyystjärvi, Esa
Format: Article
Language:English
Subjects:
Antioxidants
Biomolecules
Chlorophyll
Chloroplasts
Decomposition
Electron transport
Electron transport chain
Energy
Gene expression
Hydrologic cycle
Light
Lipids
Metabolism
Oxygen
photodamage
Photosynthesis
Photosynthetic apparatus
photosynthetic electron transport chain
Reactive oxygen species
redox signaling
Review
Scavenging
Stroma
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Summary:Oxygen is a natural acceptor of electrons in the respiratory pathway of aerobic organisms and in many other biochemical reactions. Aerobic metabolism is always associated with the formation of reactive oxygen species (ROS). ROS may damage biomolecules but are also involved in regulatory functions of photosynthetic organisms. This review presents the main properties of ROS, the formation of ROS in the photosynthetic electron transport chain and in the stroma of chloroplasts, and ROS scavenging systems of thylakoid membrane and stroma. Effects of ROS on the photosynthetic apparatus and their roles in redox signaling are discussed.
ISSN:2223-7747
2223-7747
DOI:10.3390/plants9010091