Dear Colleagues,

Plants are the ultimate producers of the ecosystem that provides food and oxygen to the planet. The increasing human population demands a significant increase in agriculture production. However, due to their sedentary nature, plants are prone to several abiotic and biotic environmental adversities that threaten their growth and productivity. Among others, salt, drought, temperature, and heavy metals are the prominent abiotic stresses that reduce plant growth. Biotic stress is caused by several biological interactions including pathogen attacks that can ultimately cause cell death. Contrary to animals, plants lack mobile defenders and, therefore, need sophisticated mechanisms to avoid these adversities.

Plant cells experience competition between growth/development and stress perception and must prioritize the use of energy and metabolic resources between growth/development and stress responses. In response to abiotic stresses, plants undergo physiological changes including regulation of stomata, re-composition of the cell wall, changes in growth patterns, inducing antioxidant system, etc. In response to biotic stress, the molecular patterns associated with pathogens (PAMPS) are recognized by the plant receptor proteins inducing PAMPs-triggered immunity (PTI). Avirulent pathogens can release their effectors into the host plant compromising the host defense system; however, plants have R genes that interact with these effector molecules. The R-avr interaction can induce downstream signaling cascades. Among others, there is the production of oxidative burst and nitrosative (or nitro-oxidative) burst leading to the production of reactive oxygen and nitrogen species respectively. These two redox-active molecules undergo a series of signaling cascades that ensure plant resistance to specific environmental adversities. Understanding the underlying mechanism of how these molecules function will help plant scientists to develop stress-tolerant plants.

Therefore, we aim to provide a platform where we can gather information related to the challenges that plant faces and how they respond to these challenges. We welcome original research and reviews that are under the scope of “Redox-Mediated Signaling in Plants under Stress Conditions”. The Special Issue will cover topics about the mechanisms of ROS or RNS production during stress, signaling of ROS and RNS, scavenging of ROS and RNS, ROS, and ROS-mediated post-translational modifications, and related topics.

Prof. Dr. Byung-Wook Yun
Dr. Qari Muhammad Imran
Guest Editors

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• biotic and abiotic stress-induced changes in plants
• plant defense system and PAMP-triggered immunity
• R-avr interaction and its consequences in plants
• signaling cascades in response to abiotic stresses in plants
• ROS and RNS production and signaling