Phil Stewart, Principal Investigator and CBE Director, received funding from the NSF-MRI Program and the M.J. Murdock Charitable Trust for the purchase of new confocal microscope equipment in the fall of 2010. The National Science Foundation awarded $498,433 for the project: "MRI: Acquisition of a State of the Art Confocal Microscope at the Center for Biofilm Engineering." The NSF grant was awarded in conjunction with a complementary cost-sharing grant of $406,500 from the M.J. Murdock Charitable Trust.
Varied physiological responses of the facultative γ-proteobacterium, Shewanella oneidensis MR-1, and the δ-proteobacterium Desulfovibrio vulgaris hildenborough to oxygen
Evolution of molecular oxygen and accumulation in Earth’s atmosphere is considered to be the one of the most significant changes on Earth that impacted the evolution of life. Over the past 600 million years, there have been fluctuations in atmospheric oxygen concentrations that have driven the evolution of species in all three domains of life. Anaerobic microorganisms, some of the earliest life forms originated approximately 3.5- to 4 billion years ago when Earth’s atmosphere was strictly anaerobic.
Varied physiological responses of the facultative γ-proteobacterium, Shewanella oneidensis MR-1, and the δ-proteobacterium Desulfovibrio vulgaris hildenborough to oxygen, Thesis Defense by Anitha Sundararajan, PhD Candidate, Department of Microbiology, Montana State University, March 2011
Factors influencing the fate of chromium in soils: Microbial ecology, physiology and metal transformation studies
Chromium is a common contaminant in soil environments, especially at Department of Energy sites. The fate of chromium in the environment is influenced by a number of factors including the microbial processes and the interactions with soil constituents such as carbon sources, iron minerals and electron shuttling compounds.
Factors influencing the fate of chromium in soils: Microbial ecology, physiology and metal transformation studies, Thesis Defense by Erin Field, PhD Candidate, Department of Microbiology, Montana State University, April 2011
Microbial reduction of Se is controlled by oxygen and lithology within mixed deposits of shale, chert, and mudstone mined from the Meade Peak member of the Phosphoria Formation in southeast Idaho.
In situ microbial reduction of selenium in backfilled phosphate mine overburden, S.E. Idaho, Thesis Defense by Lisa Bithell Kirk, PhD, Land Resources and Environmental Sciences, Montana State University, April 2011
The Powder River Basin in southeastern Montana and northeast Wyoming is the largest source of coal mined in the United States, but most of the coal contained in the basin is buried too deeply to be economically accessible. These remote coal beds are dynamic zones where biogeochemical processes work to sustain life. Previous work has shown that a direct byproduct of these life processes is biogenic methane, the principle component of natural gas that can be used as an energy source for electricity generation, heat and transportation fuel.
Analysis of methane producing communities within underground coal beds, Thesis Defense by Elliott Barnhart, M.S. candidate, microbiology, Montana State University, August 2011
September 2, 2011
The CBE garnered the cover image and feature article in the September 2011 issue of Microscopy Today. The cover image, obtained with a confocal scanning laser microscope (CSLM) by Logan Schultz and Betsey Pitts of the CBE, shows four reconstructed digital image slices through clusters of Sporosarcina pasteurii bacteria growing around calcium carbonate precipitates inside a glass capillary.
November 8, 2011
Two Leica confocal microscope systems recently installed at the Center for Biofilm Engineering provide a vastly upgraded Research Core Facility available to the Montana State University (MSU) research community.
MSU News Web Feature, November 1, 2011
Elliott Barnhart, CBE PhD student, microbiology, was recently featured by Montana State University for his ability to balance the roles of award-winning collegiate athlete, student, and civic-minded researcher.
The sodachelins are a group of six amphiphilic siderophores produced by a halophilic bacterium. Amphiphilic siderophores, such as the sodachelins, are important in the solubilization and sequestration of iron related to microbial metabolism and are also unique in their ability to form micelle and vesicular structures. This professional paper describes siderophore importance in iron bioavailability, siderophore chemistry and biological function and a thermodynamic analysis of forces that drive micellization and vesicle formation.
Determination of critical micelle concentration of an amphiphilic siderophore, Thesis Defense by Kenneth Scott Mousseau, MS, Chemical Engineering, Montana State University, August 2009
Coeur d'Alene River (CDAR) in northern Idaho is one of the metal contaminated rivers in US. The sediments of the river are enriched with As, Cd, Cu, Pb, and Zn which are toxic metals to humans and animals. It is hypothesized that microorganisms living in this river sediment can remove the metals and thus detoxify their environment. The objective of this work is to investigate the microbial communities existing in CDAR sediment using 16S ribosomal RNA (rRNA) gene sequencing and 16S rRNA gene microarray (PhyloChip) analysis.
Microbial diversity and zinc toxicity to Pseudomonas sp. from Coeur d’Alene river sediment, Thesis Defense by Sutapa Barua, MS, Chemical Engineering, Montana State University, June 2007