Extracellular riboflavin induces anaerobic biofilm formation in Shewanella oneidensis.

ABSTRACT:

Background

Some microorganisms can respire with extracellular electron acceptors using an extended electron transport chain to the cell surface. This process can be applied in bioelectrochemical systems in which the organisms produce an electrical current by respiring with an anode as electron acceptor. These organisms apply flavin molecules as cofactors to facilitate one-electron transfer catalyzed by the terminal reductases and in some cases as endogenous electron shuttles.

Results

In the model organism Shewanella oneidensis, riboflavin production and excretion trigger a specific biofilm formation response that is initiated at a specific threshold concentration, similar to canonical quorum-sensing molecules. Riboflavin-mediated messaging is based on the overexpression of t

SUBMITTER: Edel M 

PROVIDER: S-EPMC8176591 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature