New mechanistic insights into phosphate-starvation-regulated plant architecture change and nutrient uptake.

Phosphorus(P)is an indispensable macro-nutrient for plant growth that is absorbed by plants in the form of inorganic phos-phate(Pi).Pi deficiency is a major challenge limiting crop pro-ductivity worldwide.To combat Pi scarcity and maintain Pi homeostasis,plants have evolved different strategies for effi-cient Pi acquisition(Paz-Ares et al.,2022).Plants reduce overall growth and enhance the root system to optimize nutrients foraging in Pi-limited soils.Strigolactones(SLs),renowned for their roles as rhizosphere signals and phytohor-mones in plant development,play a significant role in integrating nitrate and Pi signals to regulate shoot and root development.Nevertheless,the molecular mechanisms underlying the integra-tion of SL signaling in Pi starvation regulated shoot or root archi-tecture,and the balance between P and nitrogen(N)uptake remain largely unexplored.