Iron in leaves : chemical forms, signalling, and in-cell distribution

© The Author(s) 2022. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.

Détails bibliographiques
Publié dans:Journal of experimental botany. - 1985. - 73(2022), 6 vom: 15. März, Seite 1717-1734
Auteur principal: Sági-Kazár, Máté (Auteur)
Autres auteurs: Solymosi, Katalin, Solti, Ádám
Format: Article en ligne
Langue:English
Publié: 2022
Accès à la collection:Journal of experimental botany
Sujets:Journal Article Research Support, Non-U.S. Gov't Review Chloroplast DNA methylation citrate glutaredoxin glutathione hemerythrin histone modification plus... iron–sulfur cluster mesophyll mitochondrion Iron-Sulfur Proteins Iron E1UOL152H7
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520 |a Iron (Fe) is an essential transition metal. Based on its redox-active nature under biological conditions, various Fe compounds serve as cofactors in redox enzymes. In plants, the photosynthetic machinery has the highest demand for Fe. In consequence, the delivery and incorporation of Fe into cofactors of the photosynthetic apparatus is the focus of Fe metabolism in leaves. Disturbance of foliar Fe homeostasis leads to impaired biosynthesis of chlorophylls and composition of the photosynthetic machinery. Nevertheless, mitochondrial function also has a significant demand for Fe. The proper incorporation of Fe into proteins and cofactors as well as a balanced intracellular Fe status in leaf cells require the ability to sense Fe, but may also rely on indirect signals that report on the physiological processes connected to Fe homeostasis. Although multiple pieces of information have been gained on Fe signalling in roots, the regulation of Fe status in leaves has not yet been clarified in detail. In this review, we give an overview on current knowledge of foliar Fe homeostasis, from the chemical forms to the allocation and sensing of Fe in leaves 
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