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

• Autores: Galatro, Andrea; Ramos Artuso, Facundo Antonio; Luquet, Melisa; Buet, Agustina; Simontacchi, Marcela
• Año de publicación: 2020
• Idioma: inglés
• Tipo de recurso: artículo
• Materia: Ciencias Agrarias; Botánica; Abiotic stress; Acid phosphatases; Plant mineral nutrition; Phosphate; Reactive nitrogen species
• Institución: Universidad Nacional de La Plata

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.
Instituto de Fisiología Vegetal