Function, Mechanism, and Application of ROS and Phytohormones in Plants under Hostile Conditions

Dear Colleagues,

Since the development of photosynthesis, cellular emergences of reactive oxygen species (ROS) have played a vital role in the evolution and development of plants. The damaging effects of ROS are well reported; however, several recent studies have demonstrated the signaling role of ROS in plant biology. Studies revealed that the differential behavior of ROS in plants is generally related to their cellular concentrations and intricate antioxidant defense system. As signaling molecules, ROS govern various aspects of plant development such as seed dormancy and germination, radicle establishment, root and shoot development, flowering, programmed cell death, and even stress acclimation. In plant development, ROS themselves are not able to accomplish this task but they act in direct association with certain endogenous cellular chemicals, i.e., phytohormones. Phytohormones such as auxins, cytokinins, brassinosteroids, gibberellins, abscisic acid, jasmonates, and salicylic acid play a very important role in the development of plants. Therefore, this leads us to compile a Special Issue on ROS and phytohormone signaling during plant development as well as in stress acclimation. The following main themes will be covered in this Special Issue:

• Regulation of seed dormancy, germination, and seedling development by ROS and phytohormones;
• Regulation of the root system architecture by ROS and phytohormones;
• Regulation of stomatal movement, circadian rhythm, flowering establishment, fruit development, and ripening by ROS and phytohormones;
• Regulation of adaptation of plants to varied abiotic and biotic stress establishment by ROS and phytohormones;
• Phytohormonal signaling and redox regulation, and interface with ROS and RNS, under changing environmental conditions;
• Regulation of ion transport and signaling;
• ROS crosstalk with Ca²⁺ signaling;
• Other related topics.

Dr. Mohsin Tanveer
Dr. Lei Wang
Prof. Dr. Mirza Hasanuzzaman
Guest Editors

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• phytohormones
• ROS signaling
• abiotic stress tolerance
• molecular interventions
• stress adaptive responses
• plant growth and development