Summary Iron is an essential nutrient for bacterial growth and the cause of a fierce battle between the pathogen and host during infection. Bacteria have developed several strategies to access iron from the host, the most common being the production of siderophores, small iron‐chelating molecules secreted into the bacterial environment. The opportunist pathogen Pseudomonas aeruginosa produces two siderophores, pyoverdine and p...

Summary Iron is an essential nutrient for bacterial growth but poorly bioavailable. Bacteria scavenge ferric iron by synthesizing and secreting siderophores, small compounds with a high affinity for iron. Pyochelin (PCH) is one of the two siderophores produced by the opportunistic pathogen Pseudomonas aeruginosa . After capturing a ferric iron molecule, PCH‐Fe is imported back into bacteria first by the outer membrane transpor...

Summary Dichloromethane (CH 2 Cl 2 , DCM) is a chlorinated solvent mainly produced by industry, and a common pollutant. Some aerobic methylotrophic bacteria are able to grow with this chlorinated methane as their sole carbon and energy source, using a DCM dehalogenase/glutathione S ‐transferase encoded by dcmA to transform DCM into two molecules of HCl and one molecule of formaldehyde, a toxic intermediate of methylotrophic me...