Role of Abscisic Acid in Plant Stress Response

Dear Colleagues,

The phytohormone abscisic acid (ABA) is a major player in fine-tuning plants’ responses to adverse environmental conditions, including water deficiency, extreme temperatures, salinity, heavy metals, flooding, or pathogen attack. Tight control of ABA levels, which are constantly modulated by synthesis, degradation, (de)conjugation, and transport, is therefore crucial for a plant to adapt to its environment. The plant’s response to ABA stimuli is determined by its perception and transmission of downstream signals that trigger a cascade of relevant molecular, biochemical, physiological, and morphological responses, enabling the plant to cope with stress. Despite extensive research leading to significant progress being made in understanding the mechanisms of ABA-mediated response and adaptation to stress, our knowledge of many crucial pieces of this multifaceted puzzle is still lacking.

This Special Issue aims to collate recent advances addressing the role of ABA in plant responses to stress, which have emerged from the implementation of a wide range of approaches, from molecular/genetic approaches to whole plant physiology studies. Original research and review articles that concern stress-induced changes in ABA metabolism, ABA perception and signaling, ABA-dependent responses in the plant transcriptome and metabolome, as well as the interaction of ABA with other hormones in plant response and adaptation to stress are welcome to be submitted to this Special Issue.

Dr. Edyta Zdunek-Zastocka
Guest Editor

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• abiotic stress
• biotic stress
• ABA metabolism
• ABA perception
• ABA signaling
• ABA response
• cross-talk of ABA with other hormones
• stress response
• adaptation to stress