Plant resilience to phosphate limitation: current knowledge and future challenges
2021
Cho, Huikyong | Bouain, Nadia | Zheng, Luqing | Rouached, Hatem | Biochimie et Physiologie Moléculaire des Plantes (BPMP) ; Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | College of Life Science | Department of Plant, Soil, and Microbial Sciences | Plant Resilience Institute | ANR-19-CE13-0007,PHLOWZ,Approche systémique de l'interaction entre les voies de signalisation du Zinc et du Phosphate(2019)
International audience
Afficher plus [+] Moins [-]anglais. Phosphorus (P) is an essential macronutrient for all living organisms. Importantly, plants require a large amount of P to grow, and P deficiency causes huge losses in plant production. Although this issue can be mitigated by the appropriate use of phosphate (Pi) rock-derived P fertilizers, phosphate rock is a finite natural resource. Moreover, the increased demand for food as a result of our growing global population is another factor contributing to a prospective P crisis. While creating crops that are resilient to Pi deficiency presents great scientific challenge, the current progress in our understanding of how plants regulate Pi homeostasis offers some opportunities for further study. In this review, we present the published research supporting these opportunities, which are based on the molecular mechanisms that plants have evolved to respond to P deficiency. First, we focus on recent advances in P sensing and signaling pathways in the regulation of root system architecture. Next, we describe the mechanisms that regulate Pi transport and accumulation, in a Pi- (or other nutrient) dependent manner. Integrating these data will help to design an innovative strategy for improving Pi nutrition in plants. In addition, this will help with Pi scarcity, one of the challenges facing agriculture in the twenty first century.
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