Iron deficiency (iron chlorosis) is an important nutritional
disorder in fruit trees that results from impaired acquisition and
use of the metal by plants, rather than from a low level of Fe in soils.
The most evident effect of Fe deficiency is a decreased content of
photosynthetic pigments, which results in the relative enrichment
of carotenoids over chlorophylls (Chl) and leads to the yellow
colour that is characteristic of chlorotic leaves [1].
Plants employ mechanisms that promote Fe availability in the
rhizosphere and plant. Dicot and monocot species, with the
exception of members of the family Poaceae, have developed