Hemin-binding DNA structures on the surface of bacteria promote extracellular electron transfer

• Published in: bioRxiv
• Main Authors: Ajunwa, Obinna Markraphael, Salvador Minero, Gabriel Antonio, Sissel Damsbo Jensen, Meyer, Rikke Louise
• Format: Paper
• Language: English
• Published: Cold Spring Harbor Cold Spring Harbor Laboratory Press 25.12.2024; Cold Spring Harbor Laboratory
• Edition: 1.2
• Subjects: Bacteria; Bacterial infections; Biofilms; Electron transfer; Energy conservation; Environmental DNA; Extracellular matrix; Hemin; Hydrogen peroxide; Microbiology

Recent research has shown that bacteria in anoxic layers of Pseudomonas aeruginosa biofilms can respire by transferring electrons to oxygen via extracellular DNA (eDNA) and DNA-binding redox mediators that are unique to this species. In this study, we propose a similar but generic mechanism by which...