Iron (Fe) is essential cofactor in various physiological processes such as the operation
of the photosynthetic functions. In Planta, Fe content of leaves also serves as Fe
source during senescence processes. Retranslocation of Fe is connected to the alteration
in the regulation of chloroplast Fe homeostasis. Our data (Pham et al, 2020, Sági-Kazár
et al, under peer-review) indicate that regulation of the chloroplast Fe homeostasis
and senescence processes are in a close interaction. The understanding they way and
reasons of Fe remodelling may provide a basis for the development of better foliar
Fe application and biofortification techniques. With the help of single point μXANES
we could determine any possible chemical modifications in the Fe content of chloroplasts
as well as that of mesophyll cells in the areas of interest. Data are essential for
the proper interpretation of ou molecular biological information.
