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Extracellular reduction of solid electron acceptors by Shewanella oneidensis
Author(s) -
Beblawy Sebastian,
Bursac Thea,
Paquete Catarina,
Louro Ricardo,
Clarke Thomas A.,
Gescher Johannes
Publication year - 2018
Publication title -
molecular microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.857
H-Index - 247
eISSN - 1365-2958
pISSN - 0950-382X
DOI - 10.1111/mmi.14067
Subject(s) - shewanella oneidensis , biology , shewanella , extracellular , reduction (mathematics) , electron acceptor , microbiology and biotechnology , biochemistry , bacteria , genetics , geometry , mathematics
Summary Shewanella oneidensis is the best understood model organism for the study of dissimilatory iron reduction. This review focuses on the current state of our knowledge regarding this extracellular respiratory process and highlights its physiologic, regulatory and biochemical requirements. It seems that we have widely understood how respiratory electrons can reach the cell surface and what the minimal set of electron transport proteins to the cell surface is. Nevertheless, even after decades of work in different research groups around the globe there are still several important questions that were not answered yet. In particular, the physiology of this organism, the possible evolutionary benefit of some responses to anoxic conditions, as well as the exact mechanism of electron transfer onto solid electron acceptors are yet to be addressed. The elucidation of these questions will be a great challenge for future work and important for the application of extracellular respiration in biotechnological processes.