<p>Plant cells are frequently exposed to oxidative cellular environments, leading to the production of harmful reactive oxygen species (ROS). Plants have developed a number of techniques, including their scavenging and antioxidant machinery, to detoxify the toxic ROS. Numerous enzymatic and non-enzymatic antioxidants are found in plant cells, which help remove harmful oxygen molecules. This mechanism, which involves both maintaining redox homeostasis and facilitating redox signaling, depends on a variety of antioxidant molecules that are located in various cellular compartments. Additionally, the significance of various antioxidant enzymes functioning in a coordinated and synergistic manner within the cell to protect it from stress-induced damage has been emphasized. It also presents the recent biotechnological approaches aimed at improving plant resilience in model and crop species to improve stress tolerance by engineering one or more than one of these components of the ROS scavenging machinery.</p>