On the Origin and Fate of Reactive Oxygen Species in Plant Cell Compartments
Year: 2019
Type: review
Abstract: Reactive oxygen species (ROS) have been recognized as important signaling compoundsof major importance in a number of developmental and physiological processes in plants. Theexistence of cellular compartments enables efficient redox compartmentalization and ensuresproper functioning of ROS-dependent signaling pathways. Similar to other organisms, theproduction of individual ROS in plant cells is highly localized and regulated bycompartment-specific enzyme pathways on transcriptional and post-translational level. ROSmetabolism and signaling in specific compartments are greatly affected by their chemicalinteractions with other reactive radical species, ROS scavengers and antioxidant enzymes. Adysregulation of the redox status, as a consequence of induced ROS generation or decreasedcapacity of their removal, occurs in plants exposed to diverse stress conditions. During stresscondition, strong induction of ROS-generating systems or attenuated ROS scavenging can lead tooxidative or nitrosative stress conditions, associated with potential damaging modifications of cellbiomolecules. Here, we present an overview of compartment-specific pathways of ROS productionand degradation and mechanisms of ROS homeostasis control within plant cell compartments.
Source: Antioxidants
Authors: Martina Janků, Lenka Luhová, Marek Petřivalský
Institution: Palacký University Olomouc
Language: English
Subfield: Plant Science
Domain: Life Sciences
Open Access status: gold
Estimated APC paid: $1,216
OpenAlex ID: W2938302835