In the original article, Equation (11) that described the degree of exploitation of the thermodynamic frame by the microorganisms was misleading and has to be corrected for a more precise explanation. The symbol CAc− (acetate concentration) has to be replaced by rAc− (rate of acetate degradation). Therefore, the result of Equation (11) is microbial energy harvest (UHarvest) and not microbial action (SM).
A correction has been made to the section Modeling the Energy Harvest of Electroactive Microorganisms:
The degree of exploitation of the thermodynamic frame can be illustrated by means of microbial energy harvest (UHarvest, Equation 11)6. In the model, it represents the energy harvest from acetate oxidation integrated over biofilm thickness and time. Thereby, acetate gradients across biofilm thickness and during time are considered for calculations (Equation 11).
Equation (11) in the section Modeling the Energy Harvest of Electroactive Microorganisms was corrected:
Accordingly, Figure 2D and the legend of Figure 2 in the section Modeling the Energy Harvest of Electroactive Microorganisms were corrected and appear below:
Figure 2
Additionally, the section Discussion was corrected:
In the model, microbial energy harvest saturates at EA ≥ 0.2 V and a further increase of the anode potential does not lead to higher microbial energy harvest.
The authors apologize for this error and state that this does not change the scientific conclusions of the article in any way. The original article has been updated.
Statements
Footnotes
6.^AA is projected anode area.
References
1
KorthB.RosaL. F. M.HarnischF.PicioreanuC. (2015). A framework for modeling electroactive microbial biofilms performing direct electron transfer. Bioelectrochemistry106, 194–206. 10.1016/j.bioelechem.2015.03.010
Summary
Keywords
electroactive microorganisms, extracellular electron transfer, microbial thermodynamics, microbial energy harvest, electron-transport chain, modeling
Citation
Korth B and Harnisch F (2019) Corrigendum: Spotlight on the Energy Harvest of Electroactive Microorganisms: The Impact of the Applied Anode Potential. Front. Microbiol. 10:2744. doi: 10.3389/fmicb.2019.02744
Received
07 October 2019
Accepted
12 November 2019
Published
28 November 2019
Volume
10 - 2019
Edited by
Nils Risgaard-Petersen, Aarhus University, Denmark
Reviewed by
Sarah Glaven, United States Naval Research Laboratory, United States
Updates
Copyright
© 2019 Korth and Harnisch.
This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
*Correspondence: Benjamin Korth benjamin.korth@ufz.deFalk Harnisch falk.harnisch@ufz.de
This article was submitted to Microbial Physiology and Metabolism, a section of the journal Frontiers in Microbiology
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