Tapping into cyanobacteria electron transfer for higher exoelectrogenic activity by imposing iron limited growth.

ABSTRACT: The exoelectrogenic capacity of the cyanobacterium Synechococcus elongatus PCC7942 was studied in iron limited growth in order to establish conditions favouring extracellular electron transfer in cyanobacteria for photo-bioelectricity generation. Investigation into extracellular reduction of ferricyanide by Synechococcus elongatus PCC7942 demonstrated enhanced capability for the iron limited conditions in comparison to the iron sufficient conditions. Furtheremore, the significance of pH showed that higher rates of ferricyanide reduction occurred at pH 7, with a 2.7-fold increase with respect to pH 9.5 for iron sufficient cultures and 24-fold increase for iron limited cultures. The strategy presented induced exoelectrogenesis driven mainly by photosynthesis and an estimated re

SUBMITTER: Gonzalez-Aravena AC 

PROVIDER: S-EPMC9080828 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature