Systemic Regulation of Iron Acquisition by Arabidopsis in Environments with Heterogeneous Iron Distributions.

ABSTRACT: Nutrient distribution within the soil is generally heterogeneous. Plants, therefore, have evolved sophisticated systemic processes enabling them to optimize their nutrient acquisition efficiency. By organ-to-organ communication in Arabidopsis thaliana, for instance, iron (Fe) starvation in one part of a root drives the upregulation of a high-affinity Fe-uptake system in other root regions surrounded by sufficient levels of Fe. This compensatory response through Fe-starvation-triggered organ-to-organ communication includes the upregulation of Iron-regulated transporter 1 (IRT1) gene expression on the Fe-sufficient side of the root; however, the molecular basis underlying this long-distance signaling remains unclear. Here, we analyzed gene expression by RNA-seq analysis of Fe-starved split-r

SUBMITTER: Tabata R 

PROVIDER: S-EPMC9199186 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature