Microbial Iron Cycling: Mechanisms and Implications

This lecture explores the microbial iron cycling mechanisms, focusing on the metabolic diversity of iron-reducing microorganisms like Shewanella and Geobacter species. It delves into the intricate processes of Fe(III) reduction, electron shuttles, and iron chelation, shedding light on the remarkable feat of exporting electrons outside the cell. The lecture also discusses the photosynthesis process, emphasizing the different strategies employed by various organisms to capture energy from sunlight.