https://en.m.wikipedia.org/wiki/Vanadium_nitrogenase

https://en.m.wikipedia.org/wiki/Vanadium_bromoperoxidase

Vanadoenzymes

A number of species of marine algae produce vanadium bromoperoxidase as well as the closely related chloroperoxidase

Vanadium bromoperoxidases have been found in bacteria, fungi, marine macro algae (seaweeds), and marine microalgae (diatoms) which produce brominated organic compounds. It has not been definitively identified as the bromoperoxidase of higher eukaryotes, such as murex snails.

Complete genome of a nonphotosynthetic cyanobacterium in a diatom reveals recent adaptations to an intracellular lifestyle

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4128115/