Cadmium detoxification mechanisms in cacao tissues

DOI

The new EU regulation on cadmium (Cd) concentration in cocoa-derived products affects the cocoa market worldwide, especially in Latin-America, and requires the development of mitigation strategies. Plant breeding to produce low Cd-accumulating cocoa cultivars is one of them. However, this strategy requires a much better understanding and control of the physiological pathways of Cd uptake, translocation and accumulation in the beans. The various plant parts (root, branch, leaves and bean) of a cacao tree were sampled in the field and investigated in a combined approach (elemental analyses, Cd stable isotope analyses, bulk XANES spectroscopy and LA ICP MS imaging). We identified the branches and the leaves as the major storage compartments for Cd. To test their role as a sink, but also as a source of Cd for the bean, we wish to determine the Cd distribution and speciation in these tissues using µXRF and µXANES.

Identifier
DOI https://doi.org/10.15151/ESRF-ES-905036842
Metadata Access https://icatplus.esrf.fr/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatplus.esrf.fr:inv/905036842
Provenance
Creator Hiram CASTILLO; Geraldine SARRET; Edgar Eduardo VILLALOBOS PORTILLO ORCID logo; HESTER BLOMMAERT
Publisher ESRF (European Synchrotron Radiation Facility)
Publication Year 2025
Rights CC-BY-4.0; https://creativecommons.org/licenses/by/4.0
OpenAccess true
Representation
Resource Type Data from large facility measurement; Collection
Discipline Particles, Nuclei and Fields