Humic substances as fully regenerable electron acceptors in recurrently anoxic environments

Nature Geoscience

Volumn 7, Issue 3, 2014, Pages 195-200

  Klüpfel, Laura ^a   Piepenbrock, Annette ^b   Kappler, Andreas ^b   Sander, Michael ^a  

^a ETH ZURICH   (Switzerland)

^b UNIVERSITY OF TÜBINGEN   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

AERATION; ANOXIC CONDITIONS; AQUATIC ENVIRONMENT; HUMIC SUBSTANCE; MICROBIAL ACTIVITY; OXIDATION; PLANT COMMUNITY; REDOX CONDITIONS;

BACTERIA (MICROORGANISMS); SHEWANELLA ONEIDENSIS MR-1;

EID: 84895504791     PISSN: 17520894     EISSN: 17520908     Source Type: Journal    
DOI: 10.1038/ngeo2084     Document Type: Article

References (30)

1. Stevenson, F. J. Humus Chemistry: Genesis, Composition, Reactions (John Wiley, 1994
2. Scott, D. T., McKnight, D. M., Blunt-Harris, E. L., Kolesar, S. E. & Lovley, D. R. Quinone moieties act as electron acceptors in the reduction of humic substances by humics-reducing microorganisms. Environ. Sci. Tech. 32, 2984-2989 (1998
3. Aeschbacher, M., Sander, M. & Schwarzenbach, R. P. Novel electrochemical approach to assess the redox properties of humic substances. Environ. Sci. Tech. 44, 87-93 (2010
4. Lovley, D. R., Coates, J. D., BluntHarris, E. L., Phillips, E. J. P. &Woodward, J. C. Humic substances as electron acceptors for microbial respiration. Nature 382, 445-448 (1996
5. Keller, J. K.,Weisenhorn, P. B. & Megonigal, J. P. Humic acids as electron acceptors in wetland decomposition. Soil Biol. Biochem. 41, 1518-1522 (2009
6. Blodau, C. & Deppe, M. Humic acid addition lowers methane release in peats of the Mer Bleue bog, Canada. Soil Biol. Biochem. 52, 96-98 (2012
7. Keller, J. K. & Takagi, K. K. Solid-phase organic matter reduction regulates anaerobic decomposition in bog soil. Ecosphere 4, 1-10 (2013
8. Bridgham, S. D., Cadillo-Quiroz, H., Keller, J. K. & Zhuang, Q. L. Methane emissions from wetlands: Biogeochemical, microbial, and modeling perspectives from local to global scales. Glob. Change Biol. 19, 1325-1346 (2013
9. Roden, E. E. et al. Extracellular electron transfer through microbial reduction of solid-phase humic substances. Nature Geosci. 3, 417-421 (2010
10. Aeschbacher, M., Vergari, D., Schwarzenbach, R. P. & Sander, M. Electrochemical analysis of proton and electron transfer equilibria of the reducible moieties in humic acids. Environ. Sci. Tech. 45, 8385-8394 (2011
11. Lovley, D. R., Fraga, J. L., Coates, J. D. & Blunt-Harris, E. L. Humics as an electron donor for anaerobic respiration. Environ. Microbiol. 1, 89-98 (1999
12. Kappler, A., Benz, M., Schink, B. & Brune, A. Electron shuttling via humic acids in microbial iron(III) reduction in a freshwater sediment. Fems Microbiol. Ecol. 47, 85-92 (2004
13. Wolf, M., Kappler, A., Jiang, J. & Meckenstock, R. U. Effects of humic substances and quinones at low concentrations on ferrihydrite reduction by Geobacter metallireducens. Environ. Sci. Tech. 43, 5679-5685 (2009
14. Borch, T. et al. Biogeochemical redox processes and their impact on contaminant dynamics. Environ. Sci. Tech. 44, 15-23 (2010
15. Denman, K. L. et al. in Climate Change 2007: The Physical Science Basis (eds Solomon, S. et al.) (Cambridge Univ. Press, 2007
16. Ratasuk, N. & Nanny, M. A. Characterization and quantification of reversible redox sites in humic substances. Environ. Sci. Tech. 41, 7844-7850 (2007
17. Bauer, I. & Kappler, A. Rates and extent of reduction of Fe(III) compounds and O2 by humic substances. Environ. Sci. Tech. 43, 4902-4908 (2009
18. Todorova, S. G. & Costello, A. M. Design of Shewanella-specific 16S rRNA primers and application to analysis of Shewanella in a minerotrophic wetland. Environ. Microbiol. 8, 426-432 (2006
19. Ziemke, F., Brettar, I. & Hofle, M. G. Stability and diversity of the genetic structure of a Shewanella putrefaciens population in the water column of the central Baltic. Aquat. Microbial. Ecol. 13, 63-74 (1997
20. Dichristina, T. J. & Delong, E. F. Design and application of rRNA-Targeted oligonucleotide probes for the dissimilatory iron-And manganese-reducing bacterium Shewanella putrefaciens. Appl. Environ. Microbiol. 59, 4152-4160 (1993
21. Lovley, D. R., Phillips, E. J. P. & Lonergan, D. J. Hydrogen and formate oxidation coupled to dissimilatory reduction of iron or manganese by Alteromonas putrefaciens. Appl. Environ. Microbiol. 55, 700-706 (1989
22. Jiang, J. & Kappler, A. Kinetics of microbial and chemical reduction of humic substances: Implications for electron shuttling. Environ. Sci. Tech. 42, 3563-3569 (2008
23. Watson, V. J. & Logan, B. E. Power production in MFCs inoculated with Shewanella oneidensis MR-1 or mixed cultures. Biotechnol. Bioeng. 105, 489-498 (2010
24. Marsili, E. et al. Shewanella secretes flavins that mediate extracellular electron transfer. Proc. Natl Acad. Sci. USA 105, 3968-3973 (2008
25. Kotloski, N. J. & Gralnick, J. A. Flavin electron shuttles dominate extracellular electron transfer by Shewanella oneidensis. Mbio 4, 1-4 (2013
26. Blodau, C. Carbon cycling in peatlands-A review of processes and controls. Environ. Rev. 10, 111-134 (2002
27. Madigan, M. T., Martinko, J. M., Stahl, D. A. & Clark, D. P. Brock Biology of Microorganisms (Pearson Education, 2012
28. Straub, K. L., Benz, M. & Schink, B. Iron metabolism in anoxic environments at near neutral pH. Fems Microbiol. Ecol. 34, 181-186 (2001
29. Hegler, F., Posth, N. R., Jiang, J. & Kappler, A. Physiology of phototrophic iron(II)-oxidizing bacteria: Implications for modern and ancient environments. Fems Microbiol. Ecol. 66, 250-260 (2008
30. Myers, C. R. & Myers, J. M. Ferric iron reduction-linked growth yields of Shewanella putrefaciencs MR-1. J. Appl. Bacteriol. 76, 253-258 (1994