Reactive Oxygen Species (ROS): Chemistry and Role in Plant Physiology

GANGANELLI, I; GALATRO, A. ; GERGOFF GROZEFF, GUSTAVO ESTEBAN; BARTOLI, CARLOS GUILLERMO; MARÍA E. SENN

Oxygen, Nitrogen and Sulfur Species in Post-harvest Physiology of Horticultural Crop

Elsevier

Lugar: Amsterdam; Año: 2023;

During the life cycle of plants, including the post-harvest period of fruit and vegetable products, ROS are produced in the electron transfer processes of basal metabolism and can accumulate in intra- and extra-cellular compartments under certain conditions. They are key players in the physiological processes of development and response to environmental modifications, participating in growth and development, defense, acclimation and genetically programmed cell death. Their homeostasis and actions depend on the balance between ROS and their counterpart ROS processing systems and their participation play a central role in short- and long-term local and systemic signaling processes involving hormones, enzymes, calcium, among others. This chapter analyses the characteristics of ROS production in plants under basal and stress conditions, and the signaling pathways in which they play a fundamental role, such as development and response to environmental modifications, as well as the relevance of the intervention of these pathways.