New Insights into Fe Localization in Plant Tissues, Cells and Organelles
A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Physiology and Metabolism".
Deadline for manuscript submissions: closed (31 December 2020) | Viewed by 3272
Special Issue Editor
Interests: mineral nutrition; iron homeostasis; seed biology; imaging; metal speciation; synchrotron XRF/EXAFS/XANES
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
Iron (Fe) is one of the most important metal atoms involved in the metabolic activities of plant cells. Incorporated in prosthetic groups of proteins, such as hemes and sulfur clusters, or directly bound to amino acids, iron has a central role in many cellular processes requiring electron transfer reactions (photosynthesis, respiration, redox reactions, enzymatic pathways, etc.). The correct allocation of Fe to the different subcellular compartments is, thus, a vital process for maintaining optimal function of the cell. Coupled to biochemistry and genetics, imaging approaches have recently been a crucial step to identify “hot spots” of iron in the plant cell, as well as to better integrate the role of iron transporters at different levels ranging from the whole organ down to the organelle. Apart from X-ray based techniques or classical histochemistry, chemical and genetically encoded Fe probes represent a fast growing and promising opportunity in the field. Moreover, beside its localization within the cell, the chemical environment of Fe (i.e., its speciation) is another important element still missing in many instances. The identification of the ligands and the redox status of Fe atoms at a specific site represent one of the Holy Grails, not only to better understand the function of Fe but also to identify the more bio-available sources of Fe, for instance for human nutrition. This Special Issue of Plants is, therefore, devoted to highlighting new insights in iron localization in plants, from organs down to organelles, with the objective of having an up-to-date understanding of several aspects of Fe localization, such as, but not restricted to, new probes, analytical techniques for imaging and speciation, sites of Fe accumulation, ligands, and transporters.
Dr. Stéphane Mari
Guest Editor
Manuscript Submission Information
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Keywords
- iron
- imaging
- speciation
- ligands
- organelle
- chloroplast
- vacuole
- mitochondria
- nucleus
- bio-availability
