02287naa a2200337 a 450000100080000000500110000800800410001902400450006010000210010524501300012626000090025652013470026565000190161265000120163165000150164365000170165865000180167565000130169365000100170665000090171665000090172565000220173465000160175665000100177265300170178265300220179965300230182170000200184470000180186477300670188221581012024-03-01       2023    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.1093/jxb/erad3902DOI1 aHOSTETLER, A. N.  aRoot responses to abiotic stressba comparative look at root system architecture in maize and sorghum.h[electronic resource]  c2023  aUnder all environments, roots are important for plant anchorage and acquiring water and nutrients. However, there is a knowledge gap regarding how root architecture contributes to stress tolerance in a changing climate. Two closely related plant species, maize and sorghum, have distinct root system architectures and different levels of stress tolerance, making comparative analysis between these two species an ideal approach to resolve this knowledge gap. However, current research has focused on shared aspects of the root system that are advantageous under abiotic stress conditions rather than on differences. Here we summarize the current state of knowledge comparing the root system architecture relative to plant performance under water deficit, salt stress, and low phosphorus in maize and sorghum. Under water deficit, steeper root angles and deeper root systems are proposed to be advantageous for both species. In saline soils, a reduction in root length and root number has been described as advantageous, but this work is limited. Under low phosphorus, root systems that are shallow and wider are beneficial for topsoil foraging. Future work investigating the differences between these species will be critical for understanding the role of root system architecture in optimizing plant production for a changing global climate.  aAbiotic stress  aDrought  aPhosphorus  aRoot systems  aSoil salinity  aFósforo  aMilho  aRaiz  aSeca  aSistema Radicular  aSolo Salino  aSorgo  aCereal crops  aDéficit hídrico  aEstresse abiótico1 aSOUSA, S. M. de1 aSPARKS, E. E.  tJournal of Experimental Botanygv. 75, n. 2, p. 553-562, 2023.