title: Exoelectrogenic bacterium phylogenetically related to Citrobacter freundii, isolated from anodic biofilm of a microbial fuel cell.
abstract: An electrogenic bacterium, named Citrobacter freundii Z7, was isolated from the anodic biofilm of microbial fuel cell (MFC) inoculated with aerobic sewage sludge. Cyclic voltammetry (CV) analysis exhibited that the strain Z7 had relatively high electrochemical activity. When the strain Z7 was inoculated into MFC, the maximum power density can reach 204.5 mW/m(2) using citrate as electron donor. Series of substrates including glucose, glycerol, lactose, sucrose, and rhammose could be utilized to generate power. CV tests and the addition of anode solution as well as AQDS experiments indicated that the strain Z7 might transfer electrons indirectly via secreted mediators.
authors.affiliation: School of Environment and Energy, South China University of Technology, Guangzhou, 510006, People's Republic of China.
authors.forename: Jianjian
authors.initials: J
authors.lastname: Huang
authors.forename: Nengwu
authors.initials: N
authors.lastname: Zhu
authors.forename: Yanlan
authors.initials: Y
authors.lastname: Cao
authors.forename: Yue
authors.initials: Y
authors.lastname: Peng
authors.forename: Pingxiao
authors.initials: P
authors.lastname: Wu
authors.forename: Wenhao
authors.initials: W
authors.lastname: Dong
mesh_terms: D001674:Bioelectric Energy Sources; D018441:Biofilms / Q000254:growth & development*; D019343:Citric Acid / Q000378:metabolism*; D016971:Citrobacter freundii / Q000145:classification / Q000235:genetics / Q000254:growth & development / Q000302:isolation & purification / Q000378:metabolism*; D004560:Electricity; D055664:Electrochemical Techniques; D004566:Electrodes; D004583:Electrons; D005947:Glucose / Q000378:metabolism; D005990:Glycerol / Q000378:metabolism; D007785:Lactose / Q000378:metabolism; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012210:Rhamnose / Q000378:metabolism; D012722:Sewage / Q000737:chemistry / Q000382:microbiology; D013395:Sucrose / Q000378:metabolism
chemical_list: D012336:RNA, Ribosomal, 16S; D012722:Sewage; D019343:Citric Acid; D013395:Sucrose; D005947:Glucose; D007785:Lactose; D005990:Glycerol; D012210:Rhamnose