Fig. 10.

Regulatory control of iron-responsive proteins. Processes directly related to iron homeostasis such as the acquisition, uptake, chelation, and storage of iron, as well as adaptive responses in the plastid and shoot-to-root communication are chiefly transcriptional regulated. Proteins involved in RNA-directed DNA methylation, RNA decay and changes in oxidative phosphorylation are primarily post-transcriptionally regulated. RGLG affects predominantly processes involved in protein translation and degradation, but also post-transcriptional modifications of histones. RGLG is also critical for tuning the abundance of transport proteins. Proteins listed in the figure are discussed in the text.