Structure and Function of Fermenters, Fe(III)-reducers, and Methanogens in a Peat Land
DFG FOR 562 TP 2: (2005-2008)
From 03/2005 to 03/2008Principal Investigator: Marcus A. Horn, Harold L. Drake, Kirsten Küsel
Staff: Alexandra Hamberger, Marco Reiche
Grant: FOR 562 Dynamics of soil processes under extreme meteorological boundary conditions
Peat lands can experience extreme changes in the water table and are thus subject to intensive alterations in redox chemistry. At Schlöppnerbrunnen, a low-bog site, methanogenesis and the reduction of sulfate and Fe(III) are ongoing microbial processes. However, drying should reinforce mineralization and the oxidation of reduced sulfur and iron compounds. The main objectives are to address the effect of wet/dry-cycles on
- the activity and community composition of primary and secondary fermenters, and methanogens,
- the importance of acetate and H2 during the anaerobic oxidation of organic carbon,
- the diversity of acid-tolerant Fe(III)-reducers,
- the transient co-activities of different respiring anaerobic populations, and
- the amount of mobilized phosphate.
Homepage: http://www.bayceer.uni-bayreuth.de/mik/de/top/gru/html.php?id_obj=47668
List of publications of this Project
| Wüst, PK; Horn, MA; Drake, HL: Trophic Links between Fermenters and Methanogens in a Moderately Acidic Fen Soil, Environmental Microbiology, 11 (6), 1395-1409 (2009) -- Details |
| Hamberger, A; Horn, MA; Dumont, MG; Murrell, JC; Drake, HL: Anaerobic Consumers of Monosaccharides in a Moderately Acidic Fen, Applied and Environmental Microbiology, 74(10), 3112-3120 (2008) -- Details |