The Role of Abscisic Acid (ABA) Machinery in Stress Response

Dear Colleagues,

Increasing global temperatures, in tandem with the predicted increase in the frequency of drought and flooding episodes in the coming years, represent a threat to agricultural productivity. This juncture necessitates the incorporation of strategies for mitigating these threats and, consequently, the need to address crop water use efficiency, ensuring food security.

The phytohormone abscisic acid (ABA) is a key regulator of plant water use efficiency and stress physiology. ABA is also a growth regulator under normal conditions, as well as a developmental cue. ABA’s machinery includes components ranging from synthesis to molecular perception, signaling and response. Moreover, knowledge concerning the fine regulation of these ABA machinery components is emerging. This Special Issue of Plants on “The Role of Abscisic Acid (ABA) Machinery in Stress Response” intends to assemble original research articles and review papers regarding the ABA machinery in plants, ranging from synthesis to response. We are convinced that a better understanding of how ABA machinery works at a basic level would provide us an advantageous position for overcoming the negative food productivity effects of climate change.

Main topics:

• ABA synthesis and transport;
• ABA inactivation and conjugation;
• ABA core signaling function and regulation.

Dr. Gastón Alfredo Pizzio
Guest Editor

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