Abstract
Manganese (Mn) is an essential element required for the growth of all known living organisms. Land plants acquire Mn from the rhizosphere, and its translocation into, and distribution within, the plant involves a multitude of transporters (Alejandro et al., 2020). In the aerial part of the green plant, the most prominent reaction that depends on Mn is the water-splitting reaction of photosystem II, which employs a tetra-Mn cluster located in the thylakoid lumen of chloroplasts. Other, no less important reactions take place in mitochondria, where a Mn superoxide dismutase acts as a scavenger of reactive oxygen species, and in the Golgi apparatus, where Mn-dependent glycosyltransferases are involved in cell wall biosynthesis.
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