Developmental and physiological responses of Brachypodium distachyon to fluctuating nitrogen availability.

ABSTRACT: The Nitrogen Use Efficiency (NUE) of grain cereals depends on nitrate (NO₃^-) uptake from the soil, translocation to the aerial parts, nitrogen (N) assimilation and remobilization to the grains. Brachypodium distachyon has been proposed as a model species to identify the molecular players and mechanisms that affects these processes, for the improvement of temperate C3 cereals. We report on the developmental, physiological and grain-characteristic responses of the Bd21-3 accession of Brachypodium to variations in NO₃^- availability. As previously described in wheat and barley, we show that vegetative growth, shoot/root ratio, tiller formation, spike development, tissue NO₃^- and N contents, grain number per plant, grain yield an

SUBMITTER: David LC 

PROVIDER: S-EPMC6405861 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature