ROS are mainly generated by plasma membrane (PM)-localized NADPH oxidases, known as respiratory burst oxidase homologs (RBOHs) (Torres et al., 2002; Kwak et al., 2003), whose activity is regulated by the post-translational modification of various proteins (Yun et al., 2011; Drerup et al., 2013; Shen et al., 2020). Activated RBOHs catalyze the reduction of oxygen to generate apoplastic superoxide anions (O2.−), which are subsequently converted into hydrogen peroxide and enter the guard cells where they regulate stomatal movement (Rodrigues et al., 2017). Radical-induced Cell Death 1 (RCD1) and its homologs, Similar to RCD1 One (SRO) proteins, were identified as a group of plant-specific proteins that function in oxidative and abiotic stress response by modulating ROS content and redox state (Ahlfors et al., 2004; Katiyar-Agarwal et al., 2006; Jaspers et al., 2009; You et al., 2013; Liu et al., 2014).