Iron and Phosphate Deficiency Regulators Concertedly Control Coumarin Profiles in Arabidopsis thaliana Roots During Iron, Phosphate, and Combined Deficiencies.

ABSTRACT: Plants face varying nutrient conditions, to which they have to adapt to. Adaptive responses are nutrient-specific and strategies to ensure supply and homeostasis for one nutrient might be opposite to another one, as shown for phosphate (P_i) and iron (Fe) deficiency responses, where many genes are regulated in an opposing manner. This was also observed on the metabolite levels. Whereas root and exudate levels of catechol-type coumarins, phenylpropanoid-derived 2-benzopyranones, which facilitate Fe acquisition, are elevated after Fe deficiency, they are decreased after P_i deficiency. Exposing plants to combined P_i and Fe deficiency showed that the generation of coumarin profiles in Arabidopsis thaliana roots by P_i deficiency considerably dep

SUBMITTER: Chutia R 

PROVIDER: S-EPMC6378295 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature