Wisconsin Discovery Portal

Researcher's Profile

Last Name

McMahon 

First Name

Katherine (Trina) 

Middle Initial

Areas of Research Expertise

* Improvement of the capacity to predict and model microbial behavior, while searching for novel biologically mediated transformations that can be harnessed for engineering applications
* Microbial ecology and biogeochemistry in freshwater systems
* Links between microbial community structure and function
* Process performance during biological wastewater treatment
* Microbial communities as antibiotic resistance reservoirs in agricultural environments
* Phosphate metabolism in activated sludge
* Studies enrichment cultures using both novel and traditional molecular techniques to investigate the phosphate metabolism of EBPR organisms

Web site

Trina McMahon's University Home Page 

Curriculum Vitae (CV)

Trina McMahon's CV 

Current/Active Funding

  • NSF, 2007-2012, Career: Microbes and Phosphorus: Integrating Engineering Principles, Ecology, and Undergraduate Learning to Manage Eutrophication of Freshwater Lakes
  • NSF, 2007-2012, Collaborative Research: Microbial Observatory: Forces Driving Microbial Community Diversity and Composition in Humic Lakes

Issued Patent(s)

 

USPTO Published Applications

Recent Publication(s)

  • " Metatranscriptomic array analysis of 'Candidatus Accumulibacter phosphatis'-enriched enhanced biological phosphorus removal sludge"

He SM, Kunin V, Haynes M, et al., Environmental Microbiology 12 (5): 1205-1217 May 2010.  Here we report the first metatranscriptomic analysis of gene expression and regulation of 'Candidatus Accumulibacter'-enriched lab-scale sludge during enhanced biological phosphorus removal (EBPR).

  • "Seasonal and Episodic Lake Mixing Stimulate Differential Planktonic Bacterial Dynamics"

Shade A, Chiu CY, McMahon KD, Microbial Ecology 59(3): 546-554 Apr 2010.  Results suggest intensity, frequency, and seasonality jointly contribute to aquatic bacterial response to mixing disturbance. 

  • "Differential bacterial dynamics promote emergent community robustness to lake mixing: an epilimnion to hypolimnion transplant experiment"

Shade A, Chiu CY, McMahon KD, Enviornmental Microbiology 12 (2): 455-466 Feb 2010. P>Lake mixing disrupts chemical and physical gradients that structure bacterial communities. A transplant experiment was designed to investigate the influence of post-mixing environmental conditions and biotic interactions on bacterial community composition. The experimental design was 3 x 2 factorial, where water was incubated from three different sources (epilimnion, hypolimnion, and mixed epilimnion and hypolimnion) at two different locations in the water column (epilimnion or hypolimnion).

  • "Evidence for structuring of bacterial community composition by organic carbon source in temperate lakes"

Jones SE, Newton RJ, McMahon KD, Enviornmental Microbiology 11 (9): 2463-2472 Sep 2009. To explore the correlation between primary DOC source and the occurrence of bacterial taxonomic groups, we conducted a survey of bacterial 16S rRNA gene composition in 15 lakes positioned along a water colour : chlorophyll a gradient.

Recent Artistic Works

 

Collaboration

  • Intra-University Collaboration: Soil Science, Limnology & Marine Science
  • UC-Berkeley
  • Concordia University
  • University of South Florida
  • University of Illinois at Urbana-Champaign
  • Wisconsin State Lab of Hygiene
  • Great Lakes Environmental Research Lab

Research Tools

 

Research Facilities

 

E-mail Address

tmcmahon@engr.wisc.edu 

Phone Number

(608) 263-3137 

Current University

UW - Madison 

Department

Civil and Environmental Engineering 

Title

Associate Professor 

Other Appointments

 

Address Line 1

3204 Engineering Hall 

Address Line 2

1415 Engineering Drive 

City

Madison 

State

WI 

Zip Code

53706 

Bachelor's Degree

BS, University of Illinois-Urbana Champaign, Civil Engineering, 1995

Master's Degree

MS, University of Illinois-Urbana Champaign, Environmental Engineering, 1997

PhD

PhD, University of California-Berkeley, Environmental Engineering, 2002

Other Degrees

 

Technologies Available for Licensing

Attachments
Created at 6/18/2007 3:14 PM  by EXTWEB\mbrown 
Last modified at 5/13/2010 3:10 PM  by EXTWEB\jkolberg