Lawrence Livermore National Laboratory

Steve Blazewicz

Research Staff
Nuclear and Chemical Sciences Division

 +1 925-423-1506

Ph.D. Soil Microbial Ecology
University of California at Berkeley
B.S. Biochemistry
Northern Arizona University

Research Interests

Microbial activities are essential in shaping and controlling virtually all ecosystems including the human- plant- and animal-associated biomes. Through my research I strive to expand our understanding of how microbial community structures, functions, and interactions are affected by habitat characteristics and in turn how their activities impact environmental or host fitness. I use a combination of community molecular analyses, chemical and physical characterizations, and process measurements to explore microbial mechanisms, interactions, and responses with the goal of expanding our predictive capabilities.

Honors and Awards

  • Mendenhall Postdoctoral Fellowship, USGS, 2013-2015
  • National Science Foundation – Graduate Research Fellowship, UC Berkeley, 2009-2012
  • Outstanding Graduate Student Instructor award, Microbial Ecology Course, UC Berkeley, 2009
  • Outstanding Senior Award from the College of Engineering & Natural Sciences, NAU, fall 2006
  • Scott Savage Award for Excellence in Chemistry, Northern Arizona University, spring 2006
  • Student of the Year for Physical Chemistry, Northern Arizona University, 2005/2006
  • Arizona Power Authority Scholarship, NAU, 2005/2006
  • Virgil and Clarine Gillenwater Scholarship, NAU, 2005/2006
  • NAU Academic Excellence Scholarship, 2004/2005

Selected (Recent) Publications

Neumann RB, Blazewicz SJ, Conaway C, McFarland J, Waldrop MP. 2016. Modeling CH4 and CO2 cycling using porewater stable isotopes in a thermokarst bog in interior Alaska: Results from three conceptual reaction networks. Biogeochemistry. 127:57-87.

Hultman J, Waldrop MP, David MM, McFarland J, Mackelprang R, Blazewicz SJ, Harden J, Turetsky M, McGuire AD, Shah MB, VerBermoes NC, Mavrommatis K, Jansson JK. 2015. Microbial Life in Permafrost: Predictions of Microbial Response to Natural Thaw using a Multi-Omics Approach. Nature. 321:208-212.

Blazewicz SJ, Schwartz E, Firestone MK. 2014. Growth and Death of Bacteria and Fungi Underlie Rainfall-Induced Carbon Dioxide Pulses from Seasonally Dried Soil. Ecology. 95:1162-1172.

Blazewicz SJ, Daly RA, Barnard R, Firestone MK. 2013. Re-evaluating the Use of rRNA from Environmental Samples as an Indicator of Active Microorganisms: Limitations and Applications. ISME Journal of Microbial Ecology. 7:2061-2068.

Carlson HK, Clark IC, Blazewicz SJ, Iavarone AT, Coates JD. 2013. Fe(II) oxidation is an innate capacity of NO3- reducing bacteria involving abiotic and biotic reactions. Journal of Bacteriology. 195:3260-3268.

Adair K, Blazewicz SJ, Hungate BA, Hart SC, Dijkstra P, Schwartz E. 2013. A Positive Relationship Between the Abundance of Ammonia Oxidizing Archaea and Natural Abundance δ15N of Ecosystems. Soil Biology and Biochemistry. 65:313-315.

Blazewicz SJ, Petersen DG, Waldrop MP, Firestone MK. 2012. Anaerobic Oxidation of Methane in Tropical and Boreal Soils: Ecological Significance in Terrestrial Methane Cycling. JGR Biogeosciences. G02033:1-9.

Petersen DG, Blazewicz SJ, Firestone MK, Herman DJ, Turetsky M, Waldrop MP. 2012. Abundance of Microbial Genes Associated with Nitrogen Cycling as Indices of Biogeochemical Process Rates Across a Vegetation Gradient in Alaska. Environmental Microbiology. 14:993-1008.

Mackelprang R, Waldrop MP, DeAngelis KM, David MM, Chavarria KL, Blazewicz SJ, Rubin EM, Jansson JK. 2011. Metagenome Analysis of a Permafrost Microbial Community Reveals a Rapid Response to Thaw. Nature. 480:368-371.

Blazewicz SJ and Schwartz E. 2011. Dynamics of 18O Incorporation from H218O into Soil Microbial DNA. Microbial Ecology. 61:911-916.

Schwartz E, Blazewicz SJ, Doucett R, Hungate BA, Hart SC, Dijkstra P. 2007. Natural abundance δ15N and δ13C of DNA extracted from soil. Soil Biology and Biochemistry. 39:3101-3107.

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