Protocol to obtain genetically engineered Acetobacterium woodii and Eubacterium callanderi strains

We present a protocol to produce electrocompetent Acetobacterium woodii DSM 1030 and Eubacterium callanderi DSM 3468 cells. These acetogens are capable of converting CO₂ with H₂ and other C1 substrates into organic acids. We describe the electroporation procedure and the verification steps to prove the presence of recombinant strains. This protocol serves as a basis for the application of the genetic toolbox for these bacterial species and can be adapted to several anaerobic strains. For complete details on the use and execution of this protocol, please refer to Leang et al.¹.