The root hairless mutant buzz in Brachypodium distachyon shows increased nitrate uptake and signaling but does not affect overall nitrogen use efficiency.

ABSTRACT: Root systems are uniquely adapted to fluctuations in external nutrient availability. In response to suboptimal nitrogen conditions, plants adopt a root foraging strategy that favors a deeper and more branched root architecture, enabling them to explore and acquire soil resources. This response is gradually suppressed as nitrogen conditions improve. However, the root hairless mutant buzz in Brachypodium distachyon shows a constitutive nitrogen-foraging phenotype with increased root growth and root branching under nitrate-rich conditions. To investigate how this unique root structure and root hair morphology in the buzz mutant affects nitrate metabolism, we measured the expression of nitrate-responsive genes, nitrate uptake and accumulation, nitrate reductase activity, and nitrogen use effic

SUBMITTER: Rosas MA 

PROVIDER: S-EPMC11658193 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature