Role of outer membrane c-type cytochromes MtrC and OmcA in Shewanella oneidensis MR-1 cell production, accumulation, and detachment during respiration on hematite

Geobiology
A C MitchellG G Geesey

Abstract

The iron-reducing bacterium Shewanella oneidensis MR-1 has the capacity to contribute to iron cycling over the long term by respiring on crystalline iron oxides such as hematite when poorly crystalline phases are depleted. The ability of outer membrane cytochromes OmcA and MtrC of MR-1 to bind to and transfer electrons to hematite has led to the suggestion that they function as terminal reductases when this mineral is used as a respiratory substrate. Differences in their redox behavior and hematite-binding properties, however, indicate that they play different roles in the electron transfer reaction. Here, we investigated how these differences in cytochrome behavior with respect to hematite affected biofilm development when the mineral served as terminal electron acceptor (TEA). Upon attachment to hematite, cells of the wild-type (WT) strain as well as those of a ΔomcA mutant but not those of a ΔmtrC mutant replicated and accumulated on the mineral surface. The results indicate that MtrC but not OmcA is required for growth when this mineral serves as TEA. While an OmcA deficiency did not impede cell replication and accumulation on hematite prior to achievement of a maximum surface cell density comparable to that established by ...Continue Reading

References

Jul 1, 1991·Applied and Environmental Microbiology·M K Banks, J D Bryers
Nov 15, 1996·FEMS Microbiology Letters·A G MatthysseA E Goodman
Nov 28, 2001·Applied and Environmental Microbiology·P StoodleyJ W Costerton
May 8, 2002·Environmental Science & Technology·Shawn G BennerScott Fendorf
Aug 9, 2003·Letters in Applied Microbiology·C R Myers, J M Myers
Sep 4, 2004·Applied and Environmental Microbiology·Charles R Myers, Judith M Myers
Nov 18, 2004·Journal of Bacteriology·Kai M ThormannAlfred M Spormann
Oct 6, 2005·Environmental Science & Technology·Colleen M HanselScott Fendorf
Nov 22, 2005·Nature Methods·Nathan C ShanerRoger Y Tsien
Dec 8, 2005·Applied and Environmental Microbiology·Elanna BesterSanja Saftic
Jun 28, 2006·International Journal of Clinical Pharmacology and Therapeutics·J F MarierT Monif
Jul 20, 2006·Proceedings of the National Academy of Sciences of the United States of America·Yuri A GorbyJim K Fredrickson
Aug 1, 2006·PLoS Biology·Matthew J MarshallJames K Fredrickson
Jul 24, 2007·Applied and Environmental Microbiology·Orianna BretschgerKenneth H Nealson
Aug 19, 2007·Journal of Biological Inorganic Chemistry : JBIC : a Publication of the Society of Biological Inorganic Chemistry·Robert S HartshorneDavid J Richardson
Sep 4, 2007·Journal of Inorganic Biochemistry·Martial TaillefertThomas J DiChristina
Nov 22, 2007·Archives of Microbiology·Dwayne A EliasYuri A Gorby
Dec 11, 2007·Applied and Environmental Microbiology·Harald von CansteinJonathan R Lloyd
Mar 5, 2008·Proceedings of the National Academy of Sciences of the United States of America·Enrico MarsiliDaniel R Bond
Jun 26, 2008·Journal of Biological Inorganic Chemistry : JBIC : a Publication of the Society of Biological Inorganic Chemistry·Mackenzie Firer-SherwoodSean J Elliott
Aug 8, 2009·The Journal of Biological Chemistry·Daniel BaronDaniel R Bond
Oct 20, 2009·Applied and Environmental Microbiology·Bjoern SchuetzJohannes Gescher
Nov 10, 2009·Journal of Bacteriology·Dan CoursolleJeffrey A Gralnick
Dec 19, 2009·Proceedings of the National Academy of Sciences of the United States of America·Robert S HartshorneDavid J Richardson
Jul 6, 2010·Molecular Microbiology·Dan Coursolle, Jeffrey A Gralnick
May 17, 2011·Journal of Bacteriology·Renee M SavilleAlfred M Spormann
May 25, 2011·Proceedings of the National Academy of Sciences of the United States of America·Thomas A ClarkeDavid J Richardson
Aug 16, 2011·The Journal of Physical Chemistry. B·Mackenzie A Firer-SherwoodSean J Elliott

❮ Previous
Next ❯

Citations

Aug 19, 2015·Bioprocess and Biosystems Engineering·Jong-Min JeonYung-Hun Yang
Feb 10, 2018·Frontiers in Microbiology·Howard W HarrisKenneth H Nealson
Jan 29, 2021·NPJ Biofilms and Microbiomes·Alberto J Martín-RodríguezUte Römling
Jun 25, 2021·Environmental Science and Pollution Research International·Priya MukherjeeMin Jang
Oct 24, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Yoshihide Tokunou, Akihiro Okamoto

❮ Previous
Next ❯

Related Concepts

Related Feeds

Biofilm & Infectious Disease

Biofilm formation is a key virulence factor for a wide range of microorganisms that cause chronic infections.Here is the latest research on biofilm and infectious diseases.