User profiles for J. A. Gralnick

Jeffrey Gralnick

Professor of Microbiology, University of Minnesota
Verified email at umn.edu
Cited by 10397

Shewanella secretes flavins that mediate extracellular electron transfer

…, D Coursolle, JA Gralnick… - Proceedings of the …, 2008 - National Acad Sciences
Bacteria able to transfer electrons to metals are key agents in biogeochemical metal cycling,
subsurface bioremediation, and corrosion processes. More recently, these bacteria have …

Ecology and Biotechnology of the Genus Shewanella

HH Hau, JA Gralnick - Annu. Rev. Microbiol., 2007 - annualreviews.org
The shewanellae are aquatic microorganisms with worldwide distribution. Their hallmark
features include unparalleled respiratory diversity and the capacity to thrive at low temperatures…

The Mtr Respiratory Pathway Is Essential for Reducing Flavins and Electrodes in Shewanella oneidensis

…, DB Baron, DR Bond, JA Gralnick - Journal of …, 2010 - Am Soc Microbiol
The Mtr respiratory pathway of Shewanella oneidensis strain MR-1 is required to effectively
respire both soluble and insoluble forms of oxidized iron. Flavins (riboflavin and flavin …

Flavin electron shuttles dominate extracellular electron transfer by Shewanella oneidensis

NJ Kotloski, JA Gralnick - MBio, 2013 - Am Soc Microbiol
… We thank members of the Gralnick lab for helpful comments and discussion and the Bond …
© 2013 Kotloski and Gralnick. This is an open-access article distributed under the terms of the …

Extracellular respiration

JA Gralnick, DK Newman - Molecular microbiology, 2007 - Wiley Online Library
Although it has long been known that microbes can generate energy using diverse strategies,
only recently has it become clear that a growing number involve electron transfer to or …

Shuttling happens: soluble flavin mediators of extracellular electron transfer in Shewanella

ED Brutinel, JA Gralnick - Applied microbiology and biotechnology, 2012 - Springer
The genus Shewanella contains Gram negative γ-proteobacteria capable of reducing a wide
range of substrates, including insoluble metals and carbon electrodes. The utilization of …

Shewanella oneidensis MR-1 Uses Overlapping Pathways for Iron Reduction at a Distance and by Direct Contact under Conditions Relevant for Biofilms

…, A Kappler, RE Mielke, JA Gralnick… - Applied and …, 2005 - Am Soc Microbiol
We developed a new method to measure iron reduction at a distance based on depositing
Fe(III) (hydr)oxide within nanoporous glass beads. In this “Fe-bead” system, Shewanella …

[HTML][HTML] Towards Electrosynthesis in Shewanella: Energetics of Reversing the Mtr Pathway for Reductive Metabolism

DE Ross, JM Flynn, DB Baron, JA Gralnick, DR Bond - PloS one, 2011 - journals.plos.org
… For example, MtrB paralogs such as MtrE can partially rescue ΔmtrB (Coursolle and
Gralnick, unpublished data). An alternative hypothesis is that a complete conduit comprised of …

Modularity of the Mtr respiratory pathway of Shewanella oneidensis strain MR‐1

D Coursolle, JA Gralnick - Molecular microbiology, 2010 - Wiley Online Library
Four distinct pathways predicted to facilitate electron flow for respiration of externally located
substrates are encoded in the genome of Shewanella oneidensis strain MR‐1. Although the …

[HTML][HTML] Electrochemical measurement of electron transfer kinetics by Shewanella oneidensis MR-1

D Baron, E LaBelle, D Coursolle, JA Gralnick… - Journal of Biological …, 2009 - ASBMB
Shewanella oneidensis strain MR-1 can respire using carbon electrodes and metal
oxyhydroxides as electron acceptors, requiring mechanisms for transferring electrons from the cell …