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Fundamental and Computational Sciences Directorate

Staff information

Malak Tfaily

Environmental Dynamics & Simulations
Pacific Northwest National Laboratory
PO Box 999
MSIN: K8-98
Richland, WA 99352

PNNL Publications


  • Walker LR, MM Tfaily, JB Shaw, NJ Hess, L Pasa Tolic, and DW Koppenaal. 2017. "Unambiguous Identification & Discovery of Bacterial Siderophores by Direct Injection 21 Tesla Fourier Transform Ion Cyclotron Resonance Mass Spectrometry." Metallomics 9(1):82-92.  doi:10.1039/c6mt00201c
  • Bailey VL, AP Smith, MM Tfaily, SJ Fansler, and B Bond-Lamberty. 2017. "Differences in Soluble Organic Carbon Chemistry in Pore Waters Sampled from Different Pore Size Domains." Soil Biology and Biochemistry 107:133-143.  doi:10.1016/j.soilbio.2016.11.025
  • Dalcin Martins P, DW Hoyt, S Bansal, C Mills, MM Tfaily, BA Tangen, RG Fincchiaro, MD Johnston, BC Mcadams, MJ Solensky, GJ Smith, YP Chin, and MJ Wilkins. 2017. "Abundant carbon substrates drive extremely high sulfate reduction rates and methane fluxes in Prairie Pothole Wetlands." Global Change Biology 23(8):3107-3120.  doi:10.1111/gcb.13633
  • Dohnalkova A, MM Tfaily, AP Smith, RK Chu, AR Crump, CJ Brislawn, T Varga, Z Shi, L Thomashow, JB Harsh, and CK Keller. 2017. "Molecular and Microscopic Insights into the Formation of Soil Organic Matter in a Red Pine Rhizosphere." Soils 1(1):Article No. 4.  doi:10.3390/soils1010004
  • Rue G, N Rock, RS Gabor, J Pitlick, MM Tfaily, and DM Mcknight. 2017. "Concentration-discharge relationships during the recession of an extreme flood in the Boulder Creek Watershed: stability of major base cation concentrations contrasts with decreases in concentration and changes in chemical quality of dissolved organic material." Water Resources Research 53(7):5276-5297.  doi:10.1002/2016WR019708
  • Staley C, AP Ferrieri, MM Tfaily, Y Cui, RK Chu, P Wang, JB Shaw, CK Ansong, HM Brewer, AD Norbeck, LM Markillie, FP do Amaral, T Tuleski, T Pellizzaro, BJ Agtuca, RA Ferrieri, S Tringe, L Pasa Tolic, G Stacey, and M Sadowsky. 2017. "Diurnal Cycling of Rhizosphere Bacterial Communities is Associated with Shifts in Carbon Metabolism." Microbiome 5:Article No. 65.  doi:10.1186/s40168-017-0287-1
  • Tfaily MM, RK Chu, JG Toyoda, N Tolic, EW Robinson, L Pasa Tolic, and NJ Hess. 2017. "Sequential extraction protocol for organic matter from soils and sediments using high resolution mass spectrometry." Analytica Chimica Acta 972:54-61.  doi:10.1016/j.aca.2017.03.031
  • Wilson RM, MM Tfaily, V Rich, JK Keller, SD Bridgham, C Medvedeff Zalman, L Meredith, PJ Hanson, ME Hines, L Pfeifer-Meister, S Saleska, PM Crill, WT Cooper, J Chanton, and JE Kostka. 2017. "Hydrogenation of Organic Matter as a Terminal Electron Sink Sustains High CO2:CH4 Production Ratios During Anaerobic Decomposition." Organic Geochemistry 112:22-32.  doi:10.1016/j.orggeochem.2017.06.011


  • Hodgkins S, MM Tfaily, DC Podgorski, C McCalley, S Saleska, PM Crill, V Rich, J Chanton, and WT Cooper. 2016. "Elemental composition and optical properties reveal changes in dissolved organic matter along a permafrost thaw chronosequence in a subarctic peatland." Geochimica et Cosmochimica Acta 187:123-140.  doi:10.1016/j.gca.2016.05.015
  • Stegen JC, AH Hurlbert, B Bond-Lamberty, X Chen, CG Anderson, RK Chu, F Dini-Andreote, SJ Fansler, NJ Hess, and MM Tfaily. 2016. "Aligning the Measurement of Microbial Diversity with Macroecological Theory." Frontiers in Microbiology 7:Article No. 1487.  doi:10.3389/fmicb.2016.01487
  • Stegen JC, JK Fredrickson, MJ Wilkins, A Konopka, WC Nelson, EV Arntzen, WB Chrisler, RK Chu, RE Danczak, SJ Fansler, DW Kennedy, CT Resch, and MM Tfaily. 2016. "Groundwater-Surface Water Mixing Shifts Ecological Assembly Processes and Stimulates Organic Carbon Turnover." Nature Communications 7:11237.  doi:10.1038/ncomms11237
  • Wilson RM, AM Hopple, MM Tfaily, S Sebestyen, CW Schadt, L Pfeifer-Meister, C Medvedeff, K McFarlane, JE Kostka, M Kolton, R Kolka, LA Kluber, JK Keller, TP Guilderson, N Griffiths, J Chanton, SD Bridgham, and PJ Hanson. 2016. "Stability of a peatland carbon to rising temperatures." Nature Communications 7:Article No. 13723.  doi:10.1038/ncomms13723


  • Tfaily MM, RK Chu, N Tolic, KM Roscioli, CR Anderton, L Pasa-Tolic, EW Robinson, and NJ Hess. 2015. "Advanced solvent based methods for molecular characterization of soil organic matter by high-resolution mass spectrometry." Analytical Chemistry 87(10):5206-5215.  doi:10.1021/acs.analchem.5b00116

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