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Program for Session 08c

Tuesday 23rd June AM: Room C2/A2

08c (Oral): Microbial cycling of iron minerals
Session chaired by Kristina Straub & Thilo Behrends

09:30	Microbial Fe Cycling at Basalt-Biofilm Interfaces on the Seafloor Templeton A, Trainor T, Arey B, Dohnalkova A, Staudigel H & Tebo B
09:45	Keynote: Microbial Iron Cycling at the Oxic-Anoxic Interface in Acidic Peatlands Küsel K, Lüdecke C, Reiche M & Hädrich A
10:15	Anaerobic Microbial Iron Oxidation in an Iron-Meromictic Lake Walter XA, Picazo-Mozo A, Miracle R-M, Vicente E, Camacho A, Aragno M & Zopfi J
10:30	Microbial and Geochemical Controls on Bacteriogenic Iron Oxide Formation and Fate Gault A, Ibrahim A, Langley S, Renaud R, Takahashi Y, Boothman C, Lloyd J, Clark I, Ferris G & Fortin D
10:45	Biomineralisation of nano-Fe(III) Phases in Inland Waterways Isaacson L, Burton E, Bush R, Sullivan L & Johnston S
11:00	Microbial Population Structure at Low-Temperature Siliceous Fe-Deposits at the Jan Mayen Hydrothermal Fields Ovreas L, Johannessen T, Jørgensen S, Thorseth I & Pedersen R
11:15	Visualizing Cell Surfaces and Biominerals in 3D: Cryo-Electron Microscopy and Tomography of Iron-Oxidizing Bacteria Chan CS & Comolli LR
11:30	Iron Biomineralization by Neutrophilic Nitrate-Reducing Iron-Oxidizing Bacteria Miot J, Benzerara K, Morin G, Kappler A, Obst M, Brown, Jr. GE & Guyot F
11:45	Phototrophic Fe(II) Oxidizing Bacteria – Strategies to Avoid Encrustation by Fe(III) Minerals Hegler F, Schmidt C, Schwarz H & Kappler A
12:00	The Biochemistry of Unusual Cytochromes Isolated from Acidophilic Fe(II)-Oxidizing Biofilms Singer S, Erickson B, VerBerkmoes N, Hwang M, Chan C, Jeans C, Banfield J, Hettich R & Thelen M
12:15	Superoxide-Mediated Transformations of Iron by Cyanobacterial Prokaryotes Waite D, Godrant A, Fujii M & Rose A

Tuesday 23rd June PM: Room C2/A2

08c (Oral): Microbial cycling of iron minerals
Session chaired by Kristina Straub & Thilo Behrends

14:30	Keynote: Ecology of Fe(III)-reducing Prokaryotes that Catalyze Critical Geobiological Processes in Sedimentary Ecosystems Kostka JE
15:00	Iron Reducing Community in an Acidic Mining Lake Remediation Experiment Wendt-Potthoff K, Porsch K, Meier J & Kleinsteuber S
15:15	Effects of Oxyanions, Natural Organic Matter, and Fe(III) Oxide Mineralogy on the Formation of Fe(II)-bearing Secondary Mineralization Products Resulting from the Bioreduction of Fe(III) Oxides O'Loughlin E, Gorski C, Latta D, Boyanov M, Cook R, Scherer M & Kemner K
15:30	The Influence of Humic Acids on Microbial Fe(III) Reduction Rates and Iron Mineral Formation Amstaetter K & Kappler A
15:45	Phosphate Interactions with Iron (Hydr)oxides: Mineralization Pathways and Phosphorus Retention Upon Bioreduction Borch T, Masue-Slowey Y, Kukkadapu R & Fendorf S
16:00	Surface Passivation Does not Impede Biotransformation of Fe Oxides by Shewanella oneidensis Eusterhues K, Friedrich MW, Thieme J, Prietzel J, Keller T, Grundmann G, Salomé M & Totsche KU
16:15	Electrical Conductivity Associated with Dissimilatory Iron Reduction: Are Microbial Biofilms Conductive? Regberg A, Singha K, Picardal F, Zheng Q, Bond D & Brantley S
16:30	Influence of Bacterial Cell Bodies and Organic Polymers on the Secondary Mineral Formation (Green-rust vs Magnetite) from γ-FeOOH Bioreduction Jorand F, Zegeye A & Lartiges B
16:45	Microbial Reduction of Intragrain Ferrihydrite in Porous Glass Beads by Shewanella oneidensis MR-1 Peretyazhko T, Zachara J, Kennedy D, Fredrickson J, Arey B, Wang C, Dohnalkova A & Xia Y
17:00	Dissolution Morphology of Iron (Oxy)(hydr)oxides Exposed to Shewanella oneidensis Stack A, Zhang M, Ginn B & DiChristina T
17:15	On the Role of Outer Membrane Cytochromes in the Exoelectrogenic Activity of S. oneidensis Bücking C, Popp F, Richter K & Gescher J

Wednesday 24th June AM: Room ICE

08c (Poster): Microbial cycling of iron minerals

107	Cycling of Fe by Siderophilic Cyanobacteria: Implications for an Early Biosphere Brown I, Thomas-Keprta K, Sarkisova S, Fischer C, Luttge A, Arvidson R, Shen G, Bryant D, Galindo, Jr C, Garrison D, Clarke W & McKay D
108	Availability of Nutrient Sources for Bacterial Development in Deep Clay Environments Esnault L, Libert M, Jullien M & Mustin C
109	Speciation of Fe Adsorbed on and Incorporated into Soil and Aquatic Bacteria: XAS Structural Study Gonzalez A, Pokrovsky O, Shirokova L, Pokrovski G, Jimenez-Villacorta F, Gonzalez-Davila M, Santana-Casiano M & Emnova E
110	Microbially Mediated Geochemical Iron and Carbon Cycling in a Cold Mineral Spring Hanselmann K, Hegler F, Horath T, Behrens S, Schmidt C & Kappler A
111	Comparative Genome Analysis of M. yellowstoni: Diversity of O₂ Reductases and Evolution Scenarios for Acidophilic Fe Oxidation Kozubal M, Macur R & Inskeep W
112	Diversity of Fe(III)-Reducing Prokaryotes in Acidic Coal Mining Lake Sediments Lu S, Reiche M & Küsel K
113	Effects of Surface Charge and Hydrophobicity of Synthetic Metal Oxides on Attached Growth of Environmental Bacterial Isolates Pouran H, Andrews J, Romero-Gonzalez M & Banwart S
114	Iron Cycling in Freshwater Environments – A Theoretical Concept on the Dynamics of Coupled Chemical an Biological Iron Redox Processes Schmidt C & Kappler A
115	Grazing and Digestion of Magnetotactic Bacteria by Ciliates Silveira T, Martins J, Abreu F, Silva K, Aronova M, Silva Neto I, Kachar B & Lins U
116	Sulfur Cycle Mediated Microbial Reduction of Ferric Iron Straub KL, Schink B & Kraemer SM
117	Kinetics of Neutrophilic Iron Oxidation by Leptothrix cholodnii Vollrath S, Behrends T & Van Cappellen P