Roles of 3,3',4',5-tetrachlorosalicylanilide in regulating extracellular electron transfer of Shewanella oneidensis MR-1.
Sci Rep
; 5: 7991, 2015 Jan 23.
Article
in En
| MEDLINE
| ID: mdl-25612888
ABSTRACT
Microbial extracellular electron transfer (EET) is critically involved in many pollutant conversion processes in both natural environment and engineered bioelectrochemical systems (BES), but typically with limited efficiency and poor controllability. In this study, we discover an important role of uncouplers in affecting the microbial energy metabolism and EET. Dose of lower-concentration 3,3',4',5-tetrachlorosalicylanilide (TCS) in the anolyte promoted the current generation and substrate degradation of an MFC inoculated with Shewanella oneidensis MR-1. However, higher TCS dosage caused obvious microbial inhibition. Our results suggest a previously unknown role of uncouplers in regulating the microbial EET. In addition, the underlying mechanisms of such processes are investigated. This work broadens our view about the EET behaviors of microorganisms in real water environment where uncouplers are usually present, and suggests a possible new approach to regulate microbial EET in BES.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Salicylanilides
/
Shewanella
/
Electron Transport
Language:
En
Journal:
Sci Rep
Year:
2015
Document type:
Article
Affiliation country:
China
Publication country:
ENGLAND
/
ESCOCIA
/
GB
/
GREAT BRITAIN
/
INGLATERRA
/
REINO UNIDO
/
SCOTLAND
/
UK
/
UNITED KINGDOM