Optimization of the growth of magnetotactic bacteria

This result was obtained in partnership with UPMC.

We introduced chemical molecules with high affinity for iron, known as iron-chelating agents, into the growth medium of magnetotactic bacteria. This resulted in:

  • Stimulation of the growth of magnetotactic bacteria (up to a factor of 8);
  • An increase in the production yield of magnetosomes (up to a factor of 6);
  • An increase in the average size of magnetosomes by about 20%.


The figure below summarizes the effect of adding iron-chelating agents to the bacterial growth medium on magnetosome production.