Modulating root system architecture: cross-talk between auxin and phytohormones

Abstract

Root architecture is an important agronomic trait that plays an essential role in water uptake, soil compactions, nutrient recycling, plant–microbe interactions, and hormone-mediated signaling pathways. Recently, significant advancements have been made in understanding how the complex interactions of phytohormones regulate the dynamic organization of root architecture in crops. Moreover, phytohormones, particularly auxin, act as internal regulators of root development in soil, starting from the early organogenesis to the formation of root hair (RH) through diverse signaling mechanisms. However, a considerable gap remains in understanding the hormonal cross-talk during various developmental stages of roots. This review examines the dynamic aspects of phytohormone signaling, cross-talk mechanisms, and the activation of transcription factors (TFs) throughout various developmental stages of the root life cycle. Understanding these developmental processes, together with hormonal signaling and molecular engineering in crops, can improve our knowledge of root development under various environmental conditions.

High-throughput sequencing-based analysis of the composition and diversity of the endophyte community in roots of Stellera chamaejasme

“…When S. chamaejasme is used for medicinal purposes, the main part used is its root, and a large number of studies on its medicinal ingredients have mainly focused on the root 31 , 32 . At the same time, roots are also important organs of plants, not only able to absorb nutrients from the soil, but also play a vital role in improving the survival of plants under various external environmental conditions 33 . However, there are relatively few studies on the endophyte composition of S. chamaejasme , especially endophytic bacteria 30 .…”

Optimizing nitrogen fertilizer for improved root growth, nitrogen utilization, and yield of cotton under mulched drip irrigation in southern Xinjiang, China

“…The root system plays a vital role in water uptake, nutrient absorption and recycling, plant-microbe interactions, and hormone synthesis and transport in plants (Tian et al, 2009;Lynch, 2013;Mohd et al, 2013;Jan et al, 2024). As the "receptor" of environmental changes perceived by crops, root growth signi cantly regulates shoot growth and in uences yield formation (King et al, 2003;Zhang et al, 2009;Wang et al, 2014;Ota et al, 2020).…”