Related how?

Biota (Life)
Prokaryotes (Prokaryota)
Bacteria (Bacterium)
Negibacteria (Rjheekñndd)
Proteobacteria (Purple bacteria & relatives)
Betaproteobacteria
Rhodocyclales
Rhodocyclaceae
Rhodocyclus

Rhodocyclus purpureus (16989153)