Role of Jasmonate signaling in regulation of plant responses to nutrient deficiency stresses.

Phytohormones regulate plant growth and development by integrating various internal developmental cues with external environmental conditions. Jasmonic acid (JA) is oxylipin-derived phytohormone that modulates the plasticity of plant responses against fluctuating environmental cues. An increasing number of studies have shown that it regulates a wide spectrum of plant physiological and biochemical processes including reproductive development, primary root growth, root hair development, seed germination, senescence, and regeneration, defense against biotic stress such as pathogen infection and herbivory and mitigation of a series of abiotic stresses such as salinity, drought, temperature (high or low), wounding, excessive UV exposure, limited water availability and metal(oid) induced toxicity. Nutrient deficiency is one such abiotic stress that adversely affects plant growth, development and productivity and JA also plays an important role in regulation of these processes under nutrient deficiency conditions. In this review, we summarize recent advances on the role of JA and its methyl ester derivative (i.e. methyl jasmonate) in modulating nutrient deficiency stress responses, impact of nutrient-status on JA biosynthesis and signaling and crosstalk of JA with other phytohormones in shaping plant growth and development under various mineral elements deficiencies.