• Research Center in Biodiversity and Genetic Resources

    InBIO Associate Laboratory

    Research Center in  Biodiversity and Genetic Resources
  • Research Center in Biodiversity and Genetic Resources

    InBIO Associate Laboratory

    Research Center in  Biodiversity and Genetic Resources
  • Research Center in Biodiversity and Genetic Resources

    InBIO Associate Laboratory

    Research Center in  Biodiversity and Genetic Resources
  • Research Center in Biodiversity and Genetic Resources

    InBIO Associate Laboratory

    Research Center in  Biodiversity and Genetic Resources
 
 

 

 

 
Ana Gonçalves Leite de Assunção
 
Position: Auxiliary Researcher
Member Type: Researchers
Degree: PhD
Email: agla@cibio.up.pt
Address: CIBIO-InBIO, Universidade do Porto, Campus de Vairão, Rua Padre Armando Quintas. 4485-661 Vairão, Portugal | Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, DK-1871, Denmark
Groups: PLANTBIO

Research interests:

 

Regulation of plant zinc homeostasis
We study 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 thaliana, 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.

 

Zn hyperaccumulation


In addition, we are interested in the mechanisms of adaptation to metal-rich soils in metal hyperaccumulator species that have evolved a remarkable high level of accumulation and tolerance to zinc. The extremophile species, Noccaea caerulescens and Alyssum pintodasilvae belong to the Brassicaceae family and are close relatives of A. thaliana.

 

 

ORCID