Skip to main content

Dissolution Morphology of Iron (Oxy)(Hydr)Oxides Exposed to the Dissimilatory Iron-Reducing Bacterium Shewanella oneidensis MR-1

Buy Article:

$60.90 plus tax (Refund Policy)

Abstract:

Atomic force microscopy was used to compare the dissolution morphology of iron (oxy)(hydr)oxide coated slides exposed to the dissimilatory iron reducing bacterium Shewanella oneidensis MR-1 and a Type II protein secretion mutant unable to reduce iron minerals without an exogenous electron shuttle. Dissolution morphologies of slides exposed to the wild-type organism were heterogeneous and consistent with the morphology of bacterial microcolonies observed by confocal microscopy. In contrast, dissolution morphologies of slides exposed to wild-type or mutant strains and the electron shuttling compound 9,10-anthraquinone-2,6-disulfonate were homogeneous. These results suggest that microcolony formation by the wild-type strain may limit dissolution whereas respiration using the shuttle compound relieves this limitation.

Keywords: AQDS; Shewanella oneidensis; deltagspD; dissolution morphology; microbial iron reduction

Document Type: Research Article

DOI: http://dx.doi.org/10.1080/01490450802660565

Affiliations: 1: School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 2: School of Biology, Georgia Institute of Technology, Atlanta, GA

Publication date: March 1, 2009

More about this publication?
tandf/ugmb/2009/00000026/00000002/art00003
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more