Organic matter and the bacterial community in groundwater

While I was a postdoctoral investigator in Liz Kujawinski's laboratory at WHOI, I worked on the interactions between microorganisms and organic matter in groundwater. This research was conducted at the Waquoit Bay National Estuarine Research Reserve in the fall 2006 and winter 2007. Bill Arnold (University of Minnesota) later joined the Kujawinski lab for a sabbatical year to work on organic nitrogen in groundwater.

Publications

Arnold, W.A., K. Longnecker, K.D. Kroeger, E.B. Kujawinski (2014). Molecular signature of organic nitrogen in septic-impacted groundwater. Environmental Science: Processes & Impacts 16: 2400-2407.

Longnecker, K. and E.B. Kujawinski (2013). Differences in community composition and carbon cycling by sediment-associated and free-living bacterial communities in a subsurface aquifer. Geomicrobiology Journal 30: 362-370.

Longnecker, K. and E.B. Kujawinski (2011). Composition of dissolved organic matter in groundwater. Geochimica et Cosmochimica Acta 75: 2752-2761.

Longnecker, K., A. Da Costa, M. Bhatia, and E.B. Kujawinski (2009). Effect of carbon addition and predation on acetate-assimilating bacterial cells in groundwater. FEMS Microbiology Ecology. 70: 456-470.