Regulatory analysis of root architectural and anatomical adaptation to nitrate and ammonium in <i>Brachypodium distachyon</i>.

ABSTRACT: Plants deploy different strategies to optimize the nitrogen (N) uptake via roots, based on a complicated regulatory network that controls root phenotype and physiology. Here, we studied the response of root architecture to varying N applications in the model species Brachypodium distachyon. Using a combination of phenotypic and transcriptomic analyses, we examined how different forms and concentrations of ammonium and nitrate affect root growth, biomass allocation, and N uptake. N concentrations significantly influenced root traits such as root length, root hair development, and aerenchyma formation in response to nitrate and ammonium. Plants grown in ammonium conditions had thin but highly branched roots, whereas nitrate application resulted in shorter, thicker roots with denser ro

SUBMITTER: Rouina H 

PROVIDER: S-EPMC12741136 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature