• • APB exhibit anaerobic photophosphorylation and carbon fixation, enabling CO2 conversion to biomass; engineered Rhodopseudomonas palustris achieved enhanced CO2 capture for lycopene production (Green Chemistry, 2022).
• • Extracellular electron transfer (EET) via exogenous mediators expands electron sources; CdS-photosynthetic hybrid systems achieved light-driven biodegradation of azo dyes without external electron donors (Applied Microbiology and Biotechnology, 2023).
• • Syntrophic interspecies electron transfer drives carbon fixation and growth in R. palustris under dark, anoxic conditions, achieving significant CO2 reduction (Science Advances, 2021).
• • APB-based microbial fuel cells and biohydrogen production are promising; addition of TiO2, ZnO, and SiC nanoparticles enhanced photo-fermentative hydrogen production in Rhodopseudomonas sp. strain A7 (International Journal of Hydrogen Energy, 2017).