Humic Substances Act as Electron Acceptor and Redox Mediator for Microbial Dissimilatory Azoreduction by Shewanella decolorationis S12

Humic Substances Act as Electron Acceptor and Redox Mediator for Microbial Dissimilatory Azoreduction by Shewanella decolorationis S12

The potential for humic substances to serve as terminal electron acceptors in microbial respiration and the effects of humic substances on microbial azoreduction were investigated. The dissimilatory azoreducing microorganism Shewanella decolorationis S12 was able to conserve energy to support growth...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of microbiology and biotechnology 2007-03, Vol.17 (3), p.428-437
Hauptverfasser: Hong, Yi-Guo (South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, P.R. China), Guo, Jun (Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Institute of Microbiology, Guangzhou, P.R. China), Xu, Zhi-Cheng (Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Institute of Microbiology, Guangzhou, P.R. China), Xu, Mei-Ying (Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Institute of Microbiology, Guangzhou, P.R. China), Sun, Guo-Ping (Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Institute of Microbiology, Guangzhou, P.R. China), E-mail: guopingsun@163.com
Format: Artikel
Sprache:eng
Schlagworte:
Anaerobiosis
Azo Compounds - chemistry
Azo Compounds - metabolism
azoreduction
Biological and medical sciences
Biotechnology
Coloring Agents - metabolism
electron acceptor
Electron Transport
Fundamental and applied biological sciences. Psychology
humic reduction
Humic Substances
HUMUS
Industrial Microbiology
Oxidation-Reduction
redox mediator
Shewanella - growth & development
Shewanella - metabolism
Shewanella decolorationis S12
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The potential for humic substances to serve as terminal electron acceptors in microbial respiration and the effects of humic substances on microbial azoreduction were investigated. The dissimilatory azoreducing microorganism Shewanella decolorationis S12 was able to conserve energy to support growth from electron transport to humics coupled to the oxidation of various organic substances or H₂. Batch experiments suggested that when the concentration of anthraquinone-2-sulfonate (AQS), a humics analog, was lower than 3 mmol/l, azoreduction of strain S12 was accelerated under anaerobic condition.
ISSN:1017-7825