Intracytoplasmic membranes develop in Geobacter sulfurreducens under thermodynamically limiting conditions.

ABSTRACT: Geobacter sulfurreducens is an electroactive bacterium capable of reducing metal oxides in the environment and electrodes in engineered systems^1,2. Geobacter sp. are the keystone organisms in electrogenic biofilms, as their respiration consumes fermentation products produced by other organisms and reduces a terminal electron acceptor e.g. iron oxide or an electrode. To respire extracellular electron acceptors with a wide range of redox potentials, G. sulfurreducens has a complex network of respiratory proteins, many of which are membrane-bound^3-5. We have identified intracytoplasmic membrane (ICM) structures in G. sulfurreducens. This ICM is an invagination of the inner membrane that has folded and organized by an unknown mechanism, often but not always located near t

SUBMITTER: Howley E 

PROVIDER: S-EPMC10082016 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature