An Update on Nitric Oxide Production and Role Under Phosphorus Scarcity in Plants

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Abstract

Phosphate (P) is characterized by its low availability and restricted mobility in soils, and also by a high redistribution capacity inside plants. In order to maintain P homeostasis in nutrient restricted conditions, plants have developed mechanisms which enable P acquisition from the soil solution, and an efficient reutilization of P already present in plant cells. Nitric oxide (NO) is a bioactive molecule with a plethora of functions in plants. Its endogenous synthesis depends on internal and environmental factors, and is closely tied with nitrogen (N) metabolism. Furthermore, there is evidence demonstrating that N supply affects P homeostasis and that P deficiency impacts on N assimilation. This review will provide an overview on how NO levels in planta are affected by P deficiency, the interrelationship with N metabolism, and a summary of the current understanding about the influence of this reactive N species over the processes triggered by P starvation, which could modify P use efficiency.

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Galatro, A., Ramos-Artuso, F., Luquet, M., Buet, A., & Simontacchi, M. (2020, April 15). An Update on Nitric Oxide Production and Role Under Phosphorus Scarcity in Plants. Frontiers in Plant Science. Frontiers Media S.A. https://doi.org/10.3389/fpls.2020.00413

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