Mechanism and application of direct interspecies electron transfer

Abstract:

Extracellular electron transfer (EET) refers to the process of transferring electrons generated in microorganisms to other electron acceptors to obtain energy, and the electron transfer that occurs between two different microorganisms is called microbial interspecies electron transfer (IET). IET can occur in two ways: mediated interspecies electron transfer (MIET) and direct interspecies electron transfer (DIET). Without of the need for other material mediation, DIET has higher efficiency and energy utilization efficiency than MIET. This paper systematically expounds the mechanisms and applications of EET in microorganisms, with focus on the mechanisms and potential application fields of DIET. This review aims to provide a reference for finding more electrically connected microbial communities and applied microorganisms.