Priming crops for the future: rewiring stress memory

The agricultural sector must produce resilient and climate-smart crops to meet the increasing needs of global food production. Recent advancements in elucidating the mechanistic basis of plant stress memory have provided new opportunities for crop improvement. Stress memory-coordinated changes at the organismal, cellular, and various omics levels prepare plants to be more responsive to reoccurring stress within or across generation(s). The exposure to a primary stress, or stress priming, can also elicit a beneficial impact when encountering a secondary abiotic or biotic stress through the convergence of synergistic signalling pathways, referred to as cross-stress tolerance. 'Rewired plants' with stress memory provide a new means to stimulate adaptable stress responses, safeguard crop reproduction, and engineer climate-smart crops for the future.

Automated summary

The agricultural sector needs to produce climate-resilient crops to meet global food demand. Recent research on plant stress memory has provided new opportunities for crop improvement. Stress memory enables plants to better respond to recurrent stress and cross-stress tolerance can benefit their ability to withstand secondary stress.