Employees – University of Copenhagen

Ana Assuncao

Ana Assuncao

Associate Professor

Regulation of plant zinc homeostasis

We investigate the molecular mechanisms and regulatory events of plant response to zinc supply. Zinc is an essential micronutrient for all living organisms, and its deficiency in soils, crops and human diets represent a global challenge.


In Arabidopsis, bZIP19 and bZIP23 (F-bZIPs) transcription factors are the central regulators of the zinc deficiency response. Their activity regulates plant zinc levels through zinc-dependent changes in the expression of zinc transporter genes, and our phylogenetic analyses of F-bZIPs indicate functional conservation across land plants.


Our team studies the molecular basis of bZIP19 and bZIP23 mode of action, and how zinc status modulates their activity. We also study F-bZIP orthologues in crops to find how they impact zinc-use-efficiency and can help improve biofortification traits.

ID: 11080369