Titanium (Ti) has been considered as an inert element for a long time.
However, since the 1930s its promotive effect on plant metabolism has
begun to be appreciated. After the first observation, experiments hav
e been conducted which suggest the promotive effects on plant physiolo
gy leading us to propose it as beneficial element. This review present
s results for establishing the basis for its beneficiality and examine
s its possible mechanism of action.