Magnetotactic bacteria

Question

can magnetotactic bacteria able to grow in aerobic conditions?

Answer 1

Magnetite-producing magnetotactic bacteria are usually found in oxic-anoxic transition zones (OATZ), the transition zone between oxygen-rich and oxygen-starved water or sediment. Many MTB are only able to survive in environments with very limited oxygen, and some can only exist in completely anaerobic environments. Quite possibly the evolutionary advantage of possessing a system of magnetosomes is linked to the ability of efficiently navigating within this zone of sharp chemical gradients by simplifying a potential three dimensional search for more favorable conditions to a single dimension (see the "Magnetism" subsection below for a description of this mechanism). Some types of magnetotactic bacteria can produce magnetite even in anaerobic conditions, using nitric oxide, nitrate, or sulfate as a final acceptor for electrons. The greigite mineralising MTB are usually strictly anaerobic.