Wisdom comes after facts - An update on plants priming using phytohormones.

Currently, agriculture is facing the threat of climate change. Adaptation of plants to unfavorable growth conditions is undoubtedly a great challenge for scientists. A promising solution to this problem is priming, for which chemicals, microorganisms and phytohormones can be used. The use of priming not only affects the adaptation of plants to unfavorable environmental conditions caused by water deficiency, low temperatures, heat and soil pollution, but can also improve the quantity and quality of biomass. In this review, we focus on the role of plant phytohormones in inducing priming in crop plants. We took a closer look at hormones such as abscisic acid, salicylic acid, jasmonic acid and gibberellins. We focused not only on their physiological and morphological effects, but also on what changes at the molecular level are induced by priming with phytohormones. An interesting aspect of priming is the epigenetic changes induced by phytohormones, which influence better adaptation to unfavorable conditions, which is why we addressed this topic in this review.