Curriculum vitae k. J. Edwards katrina j. Edwards

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University of Southern California

Department of Biological Sciences

Division of Marine Environmental Biology Email:

& Department of Earth Sciences Phone: (508) 326-9870

3616 Trousdale Parkway Fax: (213) 740-8123

Los Angeles, CA 90089-0371


B. S., with honors, Geology (Geochemistry Senior Thesis), The Ohio State University (1994)

M. S., Geology (Isotope Geochemistry emphasis), University of Wisconsin (1996)

Thesis Advisor: Dr. John W. Valley

Ph.D., Geomicrobiology, University of Wisconsin (1999)

Thesis Advisor: Dr. Jillian F. Banfield


Professor: Departments of Biological Sciences and Earth Sciences, University of Southern California (2009-)

Associate Professor: Department of Earth Sciences, University of Southern California (2007– 2009)

Associate Professor: Department of Biological Sciences, University of Southern California, Los Angeles, California (2006–2009)

Associate Scientist: Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts (2003–2006)

Assistant Scientist: Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts (1999– 2003)

Research Assistant: Department of Geology & Geophysics, University of Wisconsin, Madison (1995–1999)

Teaching Assistant: Mineralogy (1995) and Petrology (1996), University of Wisconsin, Madison.

Undergraduate Work-Study Research: Microprobe Laboratory, Department of Geology & Mineralogy, The Ohio State University (1993, 94).

Undergraduate Teaching Assistant: Geology 100 (1992, 93), Department of Geology & Mineralogy, The Ohio State University.


Director: Center for Dark Energy Biosphere Investigations (C-DEBI) (2010 –)

Co-Director: Dark Energy Biosphere Institute Research Coordination Network (DEBI RCN) (2009-)

Co-Director: Center for Electron Microscopy and Microanalysis (CEMMA) (2009 –)

Co-Director: Genomics Core Facility (2012 –)

  • 2012 A.G. Huntsman Award 
for Excellence in Marine Science

  • 2011 Fellow of the American Association for the Advancement of Science

  • 2010 Fellow of the American Academy of Microbiology

  • 2009-2010 Ocean Leadership Distinguished Lecture Series

  • 2008-2009 RIDGE Distinguished Lecturer nominee (declined)

  • 2002 Office of Naval Research Young Investigator Award

  • 1998 & 1999 Albert and Alice Weeks Best Student Research Paper Awards: Department of Geology & Geophysics, University of Wisconsin-Madison

  • 1998 Outstanding Student Research Recognition: Environ & Eng Geosci Vol. IV, No.1

  • 1996 & 1997 Outstanding Student Research Awards: Geological Society of America

  • 1995, 1996, 1997 Grants-in-Aid-of-Research: Geological Society of America

  • 1995 Research Grant: Sigma Xi

  • 1994 Outstanding Honors Senior Thesis Award: The Ohio State University

  • 1993 Field Camp Scholarship: Depart Geology & Mineralogy, The Ohio State University


  • American Geophysical Union (AGU)

  • American Society for Microbiology (ASM)

  • International Society for Microbial Ecology (ISME)

  • Mineralogical Society of America (MSA)


  • General: Geomicrobiology and microbial biogeochemistry; microbial transformations (formation/degradation) of Earth materials (rocks/minerals/organic matter).

  • Specific research areas: The subsurface biosphere in oceanic ridge flanks, chemoautotrophic iron metabolism, bio-alteration of the ocean crust & hydrothermal sulfides.

REFEREED PUBLICATIONS (Published and in production):

86. Edwards, K.J., Bach, W., Klaus, A., and the Expedition 336 Scientists. 2012. Mid-Atlantic Ridge Microbiology: 
initiation of long-term coupled microbiological, geochemical, and hydrological experimentation within the seafloor at North Pond, western flank of the Mid-Atlantic Ridge. Proc. IODP, 336: Tokyo (Integrated Ocean Drilling Program Management International, Inc.). doi:10.2204/ iodp.proc.336.102.2012

85. Wheat, C.G., Edwards, K.J., Pettigrew T., Jannasch H.W., Becker K., Davis E., Villinger H., Bach W. CORK-Lite: Bringing Legacy Boreholes Back to Life. Scientific Drilling doi:10.2204/

84. Edwards, K.J., Bach, W., Wheat, C.G., Orcutt, B.N., Hulme, S., Becker, K.S., Haddad, A., Pettigrew, T., Rhinehart, W., Grigar, K., Klaus, A. 2012. Design and deployment of borehole observatories and experiments during IODP Exp. 336, mid-Atlantic ridge flank at North Pond. In Edwards, K.J., Bach, W., Klaus, A., and the Expedition 336 Scientists, Proc. IODP, 336: Tokyo (Integrated Ocean Drilling Program Management International, Inc.). doi:10.2204/ iodp.proc.336.109.2012.

83. Orcutt, B.N., Barco, R., Joye, S.B., Edwards, K.J. 2012. Summary of carbon, nitrogen, and iron leaching characteristics and fluorescence properties of materials considered for IODP Expedition 336 subseafloor observatory assembly. In Edwards, K.J., Bach, W., Klaus, A., and the Expedition 336 Scientists, Proc. IODP, 336: Tokyo (Integrated Ocean Drilling Program Management International, Inc.). doi:10.2204/ iodp.proc.336.109.2012

82. Wang, F., Lu, S., Orcutt, B.N., Xie, W., Chen, Y., Xiao, X., Edwards, K.J. 2012. Discovering the roles of subsurface microorganisms: Progress and future of deep biosphere investigation, Chinese Science Bulletin, doi: 10.1007/s11434-012-5358-x.

81. Knab, N.J., Edwards, K.J. 2012. Competition between kinetics of chemical and biological iron oxidation: Environmental implications, Geobiology Journal, in press.

80. Fisher, A.T., Tsuji, T., Petronotis, K., Wheat, C.G., Becker, K., Clark, J.F., Cowen, J., Edwards, K.J. 2012. IODP Expedition 327 and Atlantis Expedition AT 18-07: Observatories and Experiments on the Eastern Flank of the Juan de Fuca Ridge. Scientific Drilling, 13: 4-11.

79. Toner, B.M., Lesniewski, R., Orcutt, B.N., Santelli, C.M., Marlow, J., Bach, W., Edwards, K.J. 2012. Mineralogy Selects Microbial Community at Low-Temperature along the Mid-Ocean Ridge, Geomicrobiology Journal, in press.

78. Toner, B.M., Berquo, T.S., Michel, F.M., Templeton, A., Sorensen, J.V., Edwards, K.J. 2012. Mineralogy of iron microbial mats from Loihi Seamount. Frontiers in Microbiological Chemistry, 3: 118.

77. Toner, B.M., Edwards, K.J., Rouxel, O., German, C.R. Measuring the Form of Iron in Hydrothermal Plume Particles. 2012. Oceanography, 25: 209-212.

76. Ziebis, W., McManus, J., Ferdelman, T., Schmidt-Schierhorn, F., Bach, W., Muratli, J., Edwards, K.J., Villinger, H. 2012. Interstitial Fluid Chemistry of Sediments Underlying the North Atlantic Gyre and the Influence of Subsurface Fluid Flow. Earth and Planetary Science Letters, 323-324: 79–91.

75. Biddle, J.F., Sylvan, J.B., Brazelton, W.J., Tully, B.J., Edwards, K.J., Moyer, C.L., Heidelberg, J.F., Nelson, W.C. 2012. Prospects for the study of evolution in the deep biosphere. Frontiers in Extreme Microbiology, 2(285): doi: 10.3389/fmicb.2011.00285.

74. Edwards, K.J., Fisher, A., Wheat, C.G. 2012. The deep subsurface biosphere in igneous ocean crust: Frontier habitats for microbiological exploration. Frontiers in Extreme Microbiology, 3(8): doi: 10.3389/fmicb.2012.00008.

73. Expedition 336 Scientists, 2012. Mid-Atlantic Ridge microbiology: initiation of long-term coupled microbiological, geochemical, and hydrological experimentation within the seafloor at North Pond, western flank of the Mid-Atlantic Ridge. IODP Preliminary Report, 336. doi:10.2204/

72. Sylvan, J.B., Toner, B.M., Edwards, K.J. 2012. Life and death of deep-sea vents: Bacterial diversity and ecosystem succession on inactive hydrothermal sulfides, mBio, 3(1): e00279-11.

71. Sylvan, J.B., Pyenson, B.C., Rouxel, O., German, C.R., Edwards, K.J. 2012. Time series analysis of two hydrothermal plumes at 9.50°N East Pacific Rise reveals distinct, heterogeneous bacterial populations. Geobiology Journal, doi: 10.1111/j.1472-4669.2011.00315.x.

70. Edwards, K.J., Becker, K., Colwell, R. 2012. The Deep, Dark Energy Biosphere: Intraterrestrial Life on Earth. Annual Reviews in Earth and Planetary Sciences, 40: 551–68.

69. Torrento, C., Urmeneta, J., Edwards, K.J., Cama, J. 2012. Characterization of attachment and growth of Thiobacillus denitrificans on pyrite surfaces. Geomicrobiology Journal, 29 (4): 379-388.

68. Kopf, A., Saffer, D.M., Davis, E., Hammerschmidt, S., LaBonte, A., Meldrum, R., Tozcko, S., Lauer, R., Heesemann, M. Macdonald, R., Wheat, C.G., Jannasch, H., Edwards, K., Orcutt, B. Haddad, A., Villinger, H., Araki, E., Kitada, K., Kimura, T., Kido, Y. 2011. The SmartPlug and GeniusPlug: Simple retrievable observatory systems for NanTroSEIZE borehole monitoring, In: Proceedings of the Integrated Ocean Drilling Program Ed, Kopf, A., Araki, E., Toczko, S., V. 322, doi:10.2204/iodp.proc.332.105.2011

67. Singer, E., Emerson, D.E., Webb, E.A., Nelson, W.C., Heidelberg, J.F., Kuenen, H., Edwards, K.J. 2011. Mariprofundus ferrooxydans PV-1: The First Genome of a Marine Fe(II) Oxidizing Zetaproteobacterium. PLoS ONE 6 (9) e25386.

66. Edwards, K.J., Wheat, C.G., Sylvan, J.B. 2011. Under the sea: microbial life in volcanic oceanic crust. Nature Reviews Microbiology doi:10.1038/nrmicro2647. (Progress article)

65. Bennett, S.A., Sessions, A.L., Hansman, R.L., Nakamura, K., Edwards, K.J. 2011. Tracing iron fueled microbial carbon production within the hydrothermal plume at the Loihi Seamount. Geochimica Cosmochimica Acta doi:10.1016/j.gca.2011.06.039.

64. Wheat, C.G., Jannasch, H.W., Kastner, M., Hulme, S., Cowen, J., Edwards, K.J., Orcutt, B.N., Glazer, B. 2011. Fluid sampling from oceanic borehole observatories (1990-2010). Proceedings of the IODP, Volume 327. doi:10.2204/iodp.proc.327.109.2011

63. Fisher, A.T., Wheat, C.G., Becker, K., Cowen, J., Orcutt, B., Hulme, S., Iderbitzen, K., Turner, A., Pettigrew, T., Davis, E.E., Jannash, H., Grigar, K., Addudel, R., Meldrum, R., Macdonald, R., Edwards, K.J. 2011. Design, deployment, and status of borehole observatory systems used for single-hole and cross-hole experiments, IODP Exp. 327, eastern flank of the Juan de Fuca Ridge. Proceedings of the IODP, Volume 327. doi:10.2204/iodp.proc.327.107.2011

62. Orcutt, B.N., Sylvan, J.B., Knab, N.J., Edwards, K.J. 2011. Microbial ecology of the dark ocean: Life in the dark above and below the seafloor. Microbiology and Molecular Biology Reviews 75(2): 361–422 (Review).

61. Sylvan, J.B., Turner, A., Edwards, K.J. Microbe Metal Interactions on Endolithic Seafloor Basalts. 2011. In: Microbial Metal and Metalloid Metabolism: Advances and Applications (Stolz, J.F., Oreland, R.S., eds.) ASM Press, Washington, D.C. pp 65-76.

60. Edwards, K.J., Glazer, B.T., Rouxel, O.J., Bach, W., Emerson, D., Davis, R.E., Toner, B.M., Chan, C.S., Tebo, B.M., Staudigel, H., Moyer, C.L. 2011. Ultra-diffuse hydrothermal venting supports Fe-oxidizing bacteria and massive umber deposition at 5000m off Hawaii. The ISME Journal 5: 1748–1758.

59. Singer, E., Webb, E.A., Nelson, W.C., Heidelberg, J.F., Ivanova, N., Pati, A., Edwards, K.J. 2011. The genomic potential of Marinobacter aquaeolei – A biogeochemical opportunitroph. Applied and Environmental Microbiology 77(8): 2763-2771.

58. Humphris, S.E, deMenocal, P.B, Edwards, K.J., Fisher, A.T., Saffer, D. 2011. The critical importance of scientific ocean drilling. EOS Transactions 92(10): 84-85 (Forum)

57. Edwards, K.J. 2011. Carbon cycle at depth. Nature Geosciences 4: 9-11. (Perspective)

56. Kaye, J.Z., Sylvan, J.B., Edwards, K.J., Baross, J.A. 2011. Halomonas and Marinobacter are widespread euryhaline bacterial ecotypes from hydrothermal-vent, subseafloor and deep-sea environments. FEMS Microbial Ecology 75(1): 123-133.

55. Orcutt, B.N., Bach, W., Becker, K., Fisher, A.T., Toner, B.M, Wheat, C.G., Edwards, K.J. 2011. Colonization of subsurface microbial observatories deployed in young ocean crust. The ISME Journal 5: 692-703.

54. Chan, C.S., Fakra, S.C., Emerson, D., Fleming, E.J., Edwards, K.J. 2010. Lithotrophic iron-oxidizing bacteria produce organic stalks to control iron mineral growth; implications for biosignature formation. The ISME Journal 5: 717-727.

53. Bhartia, R., Salas, E.C., Hug, W.F., Reid, R.D., Lane, A.L., Edwards, K.J., Nealson, K.H. 2010. Label-free bacterial imaging with deep UV laser induced native fluorescence. Applied and Environmental Microbiology 76: 7231–7237.

52. Hayman, N.W., Bach, W., Blackman, D., Christeson, G.L., Edwards, K.J., Haymon, R., Ildefonse, B., Schulte, M., Teagel, D., White, S. 2010. Future Scientific Drilling of Oceanic Crust. EOS Transactions 91: 133-140. (Perspective)

51. Orcutt, B.N., Wheat, C.G., Edwards, K.J. 2010. Subseafloor ocean crust microbial observatories: Development of FLOCS (FLow-through Osmo Colonization System) and evaluation of borehole construction materials. Geomicrobiology Journal 27: 143–157.

50. Santelli, C.M., Bach, W., Banerjee, N., Edwards, K.J. 2010. Tapping the subsurface ocean crust biosphere: low biomass and drilling-related contamination calls for improved quality controls and novel approaches for the future of subseafloor research. Geomicrobiology Journal 27: 158–169.

49. Schrenk, M.O., Huber, J.A., Edwards, K.J. 2010. Microbial Provinces in the Subseafloor. Oceanography 2: 279-304. (Review and Perspective)

48. Wang, H., Edwards, K.J. 2009. Bacterial and Archaeal DNA Extracted from Inoculated Experiments: Implication for the Optimization of DNA Extraction from Deep-Sea Basalts. Geomicrobiology Journal 26:463–469.

47. Homann, V.V., Edwards, K.J., Webb, E.A., Butler, A. 2009. Siderophores of Marinobacter aquaeolei: Petrobactin, Bacillibactin and their Sulfonated and Glycosylated Derivatives. Biometals Journal 2(4): 1572-8773.

46. Orcutt, B.N., Bailey, B., Staudigel, H., Tebo, B.M., Edwards, K.J. 2009. An interlaboratory comparison of 16S rRNA gene-based terminal restriction fragment length polymorphism and sequencing methods for assessing microbial diversity of seafloor basalts. Environmental Microbiology 11(7): 1728-1735.

45. Toner, B.M., Fakra, S.C., Manganini, S.J., Santelli, C.M., Marcus, M.A., Moffett, J.W., Rouxel, O., German, C.R., Edwards, K.J. 2009. Preservation of Iron(II) at Hydrothermal Vents within Carbon-Rich Matrices. Nature Geosciences 2: 197 – 201.

44. Toner, B.M., Santelli, C.M. Marcus, M.A., Wirth, R., Chan, C.S., McCollom, T.M., Bach, W., Edwards, K.J. 2009. Biogenic Iron Oxide Formation at Mid-Ocean Ridge Hydrothermal Vents: Juan de Fuca Ridge. Geochimica Cosmochimica Acta 73(2): 388-403.

43. Santelli, C.M., Edgcomb, V.P., Bach, W., Edwards, K.J. 2009. The diversity and abundance of bacteria inhabiting seafloor lavas positively correlate with rock alteration. Environmental Microbiology 11(1): 86–98.

42. Rouxel, O., Shanks, W.C. III, Bach, W., Edwards, K.J. 2008. Integrated Fe- and S-isotope study of seafloor hydrothermal vents at East Pacific Rise 9–10°N. Chemical Geology 252(3-4): 214-227.

41. Santelli, C.M., Orcutt, B.N., Banning, E., Bach, W., Moyer, C.L., Sogin, M.L., Staudigel, H. Edwards, K.J. 2008. Abundance and diversity of microbial life in ocean crust. Nature 453: 653-657.

40. Rouxel, O., Sholkovitz, E., Charette, M., Edwards, K.J. 2008. Large Scale Iron Isotope Fractionation in Subterranean Estuaries. Geochimica Cosmochimica Acta 75(14): 3413-3430.

39. Edwards, K.J., Bazylinski, D.A. 2008. Intracellular Minerals and Metal Deposits in Prokaryotes. Geobiology Journal 6(3): 309-317. (Review)

38. Moskowitz, B.M., Bazylinski, D.A., Egli, R., Frankel, R.B., Edwards, K.J. 2008. Magnetic Properties of Marine Magnetotactic Bacteria in a Seasonally Stratified Coastal Pond (Salt Pond, MA, USA). Geophysical Journal International 174(1): 75 – 92.

37. Pearson, A., Kranunz, K.S., Sessions, A.L., Dekas, A.E., Leavitt, W.R., Edwards, K.J. 2008. Quantifying microbial degradation of petroleum hydrocarbons in salt-marsh sediments using the 13C content of bacterial rRNA. Applied and Environmental Microbiology 74(4): 1157-1165.

36. Simmons, S.L., Bazylinski, D.B., Edwards, K.J. 2007. Population dynamics of marine magnetotactic bacteria in a meromictic coastal pond described with quantitative PCR. Environmental Microbiology 9(9): 2162-2174.

35. Antunes, A., França, L., Rainey, F.A., Huber, R., Nobre, M.F., Edwards, K.J., da Costa, M.S. 2007. Marinobacter salsuginis sp. nov., isolated from the brine–seawater interface of the Shaban Deep, Red Sea. International Journal of Systematic and Evolutionary Microbiology 57: 1035–1040.

34. Simmons, S.L., Edwards, K.J. 2007. Unexpected diversity in populations of the many-celled magnetotactic prokaryote. Environmental Microbiology 9(1): 206-215.

33. Simmons, S.L., Edwards, K.J. 2007. Geobiology of magnetotactic bacteria. In: Magnetoreception and magnetosomes in bacteria, Schüler, D., Ed., Microbiology Monographs, V3: 77-103, Springer Berlin/Heidelberg. doi: 10.1007/7171_03. (Review)

32. Bach, W., Edwards, K.J., Hayes, J., Huber, J., Sievert, S., Sogin, M. 2006. Energy in the Dark: Fuel for Life in the Deep Ocean and Beyond. EOS Transactions 7: 73,78.

31. Simmons, S.L., Bazylinski, D.B., Edwards, K.J. 2006. South-seeking magnetotactic bacteria in the northern hemisphere. Science 311(5759): 371-374.

30. Fisher, A. T., Wheat, C.G. Becker, K. Davis, E.E., Jannasch, H., Schroeder, D., Dixon, R., Pettigrew, T.L., Meldrum, R., Macdonald, R., Nielsen, M., Fisk, M., Cowen, J., Bach, W., Edwards, K.J. 2005. Scientific and Technical Design and Deployment of Long-term, Subseafloor Observatories for Hydrogeologic and Related Experiments, IODP Expedition 301, Eastern Flank of Juan de Fuca Ridge, In A.T. Fisher, T. Urabe, and A. Klaus et al., Proc. IODP, Expedition 301, College Station, TX (Integrated Ocean Drilling Program).

29. Rouxel, O.J, Bekker, A., Edwards, K.J. 2005. Response to Comment on “Iron isotope constraints on the Archean and Paleoproterozoic ocean redox state”. Science 311(5758): 177.

28. Kappler, A., Emerson, D., Edwards, K.J., Amend, J.P., Gralnick, J.P., Grathwohl, P., Hoehler, T., Straub, K.L. 2005. Microbial activity in biogeochemical gradients – new aspects of research. Geobiology Journal 3(3): 229-233.

27. Fisher, A. T., Urabe, T., Klaus, A., Wheat, C.G., Becker, K., Davis, E.E., Jannasch, H., Hulme, S., Nielsen, M., Schroeder, D., Dixon, R., Pettigrew, T., Macdonald, R., Meldrum, R., Fisk. M., Cowen, J., Bach, W., Edwards, K.J., and the IODP Expedition 301 Scientific Party. 2005. IODP Expedition 301 installs three borehole crustal observatories, prepares for three-dimensional, cross-hole experiments in the northeastern Pacific Ocean. Scientific Drilling 1: 6-11

26. Edwards, K.J., Bach, W., McCollom, T.M. 2005. Geomicrobiology in oceanography: Microbe-mineral interactions at and below the seafloor. TRENDS in Microbiology 13(9): 449-456. (Review)

25. Petsch, S.T., Edwards, K.J., Eglinton, T.I. 2005. Microbial transformations of organic matter in black shales and implications for global biogeochemical cycles. Palaeogeography, Palaeoclimatology, Palaeoecology 219(1-2): 157-1570.

24. Rouxel, O.J, Bekker, A., Edwards, K.J. 2005. Iron isotope constraints on the Archean and Paleoproterozoic ocean redox state. Science 307(5712): 1088-1091.

23. Pearson, A, Sessions, A.L., Edwards, K.J., Hayes, J.M. 2004. Separation of selected rRNA for isotopic analysis. Marine Chemistry 92(1-4): 295-306.

22. Simmons, S.L., Sievert, S.M., Frankel, R.B., Bazylinski, D.A., †Edwards, K.J. 2004. Spatio-temporal distribution of marine magnetotactic bacteria in a seasonally stratified coastal salt pond. Applied and Environmental Microbiology 70(10): 6230-6239.

21. Edwards, K.J. 2004. Formation and degradation of seafloor hydrothermal sulfide deposits. In: Sulfur Biogeochemistry – Past & Present, Amend, J.A. Edwards, K.J., Lyons, T., eds. GSA Publications p. 83-96.

20. Edwards, K.J., Bach, W., McCollom, T.M., Rogers, D.R. 2004. Neutrophilic iron-oxidizing bacteria in the ocean: Habitats, diversity, and their roles in mineral deposition, rock alteration, and biomass production in the deep-sea. Geomicrobiology Journal 21(6): 393-404. (Review)

19. Edwards, K.J., Rogers, D.R., Wirsen, C.O., McCollom, T.M. 2003. Isolation and Characterization of Novel Psychrophilic, Neutrophilic, Fe-Oxidizing, Chemolithoautotrophic lpha- and amma-Proteobacteria from the Deep Sea. Applied and Environmental Microbiology 69(5): 2906-2913.

18. Rogers, D.R., Santelli, C.M., Edwards, K.J. 2003. Geomicrobiology of deep-sea deposits: Estimating community diversity from low-temperature seafloor rocks and minerals. Geobiology Journal 1(2): 109-118.

17. Bach, W., Edwards, K.J. 2003. Iron and sulfide oxidation within the basaltic ocean crust: Extent, processes, timing, and implications for chemolithoautotrophic primary biomass production. Geochimica Cosmochimica Acta 67(20): 3871-3887.

16. Edwards, K.J., McCollom, T.M., Konishi, H., Buseck, P.R. 2003. Seafloor bioalteration of sulfide minerals: Results from in-situ incubation studies. Geochimica Cosmochimica Acta 67(15): 2843-2856.

15. Petsch, S.T., Eglinton, T.I., Edwards, K.J. 2003. Studies using compound-specific analysis of stable carbon isotopes in phospholipid fatty acids from a black shale weathering profile. Organic Geochemistry 34(6): 731-743.

14. Edwards, K.J., Bach, W., Rogers, D.R. 2003. Geomicrobiology of the ocean crust: A role for chemoautotrophic Fe-bacteria. Biological Bulletin 204: 180-185.

13. Edwards, K.J., Ruttenburg, A.D. 2001. Microbial response to mineral microtopography: The role of metabolism in localized mineral dissolution. Chemical Geology 180(1-4): 19-32.

12. Petsch, S.T., Eglinton, T.I., Edwards, K.J. 2001. 14C-dead living biomass: Evidence for microbial assimilation of ancient organic carbon during shale weathering. Science 292(5519): 1127-1131.

11. McGuire, M.M., Edwards, K.J., Banfield, J.F., Hamers, R.J. 2001. Surface chemistry of sulfide minerals during microbial-mediated oxidative dissolution. Geochimica et Cosmochimica Acta 85(8): 57-72.

10. Edwards, K.J., Hu., B., Hamers, R.J., Banfield, J.F. 2001. A new look at microbial leaching patterns on sulfide minerals. FEMS Microbial Ecology 34(3) 197-206.

9. Edwards, K.J., Bond, P.L., Banfield, J.F. 2000. Characteristics of attachment and growth of Thiobacillus caldus on sulfide minerals: A chemotactic response to sulfur minerals? Environmental Microbiology 2(3): 324-332.

8. Edwards, K.J., Bond, P.L., Gihring, T.M., Banfield, J.F. 2000. An Archaeal iron-oxidizing extreme acidophile important in acid mine drainage. Science 65(5459): 1701-1876.

7. Edwards, K.J., Bond, P.L., Druschel, G.K., McGuire, M.M., Hamers, R.J., Banfield, J.F. 2000. Geochemical and biological aspects of sulfide mineral dissolution: Lessons from Iron Mountain, California. Chemical Geology 169(3-4): 383-397. (Review and Synthesis)

6. Edwards, K.J., Gihring, T.M., Banfield, J.F. 1999. Interdependence of microbial populations and environmental conditions at an extreme acid mine drainage environment. Applied and Environmental Microbiology 65(8): 3627-3632.

5. Edwards, K.J., Goebel, B.M., Rodgers, T.R., Schrenk, M.O., Gihring, T.M., Cardona, M.C., Hu, B., McGuire, M.M., Hamers, R.J., Pace, N.R., Banfield, J.F. 1999. Geomicrobiology of pyrite (FeS2) dissolution: A case study at Iron Mountain, California. Geomicrobiology Journal 16(2): 155-179.

4. Banfield, J.F., Welch, S.A., Edwards, K.J. 1998. Microbes as geochemical agents. Geochemical News 8: 11-17. (Perspective)

3. Edwards, K.J., Schrenk, M.O., Hamers, R.J., Banfield, J.F. 1998. Microbial oxidation of pyrite: Experiments using microorganisms from an extreme acidic environment. American Mineralogist 83(12): 1444-1453.

2. Edwards, K.J., Valley, J.W. 1998. Oxygen isotope diffusion and zoning in diopside: Empirical constraints on water fugacity during cooling. Geochimica et Cosmochimica Acta 62(13): 2265-2277.

1. Schrenk, M.O., Edwards, K.J., Hamers, R.J., Goodman, R.M., Banfield, J.F. 1998. Distribution of Thiobacillus ferrooxidans and Leptospirillum ferrooxidans: Implications for acid mine drainage generation. Science 279(5356): 1519-1522.
6. Edwards, K.J., Bach, W., Klaus, A. 2010. Mid-Atlantic Ridge Flank Microbiology: Initiation of long-term coupled microbiological, geochemical, and hydrological experimentation within the seafloor at North Pond, western flank of the Mid-Atlantic Ridge. Scientific Prospectus, IODP Expedition 336.

5. Edwards, K.J. 2009. Hunting for Life in Rocks Beneath the Seas. Behind the Scenes Science LiveScience,

4. Edwards, K.J. 2009. 60 Seconds in North Pond. Scientific American,

3. Edwards, K.J. 2009. The North Pond Expedition Blog. USC website,

2. Teske, A., Edwards, K.J. 2005. The deeps of time in the depths of the ocean. Oceanus, 43(2).

1. Edwards, K.J. 2004. Living large in microscopic nooks. Oceanus, 42(2): 86-89.

Amend, J.A. Edwards, K.J., Lyons, T., Editors. 2004. Sulfur Biogeochemistry – Past & Present GSA Publications.

9. Baquiran, J.P., Ramirez G., Hulme, S, Orcutt B., Wheat C.G. Edwards K.J. Microbial diversity of mineral substrate wellhead enrichments inoculated from the deep biosphere at the Juan de Fuca ridge flank. In preparation.

8. Sylvan, J.B., Sai, T.Y, Haddad, A.G., Briscoe, L.J., Toner, B.M, Girguis, P.R., Edwards, K.J. Low temperature geomicrobiology along a geochemical gradient in Lau Basin. Submitted.

6. Orcutt, B.N., Oxygen dynamics in deep sediments and basement at North Pond, western flank of the Mid-Atlantic Ridge (IODP Expedition 336). Submitted.

5. Salas, E., Bhartia, R., Hug, W., Reid, R., Iturrino, G., Expedition 336 Scientists, Edwards, K.J. Life detection in igneous ocean crust. In review.

4. Bennett, S.A., Hoffman, C.L., Moffett, J.W., Edwards, K.J. Siderophore production by the ubiquitous Marinobacter species. In revision.

3. Sylvan, J.B., Edwards, K.J. Ammonium in hydrothermal vents and plumes at Loihi Seamount, Hawaii, in prep.

2. Knab, N., Edwards, K.J. Iron oxidation as energy generating metabolism for microorganisms in subsurface oceanic crust. Geochimica Cosmochimica Acta, in prep.

1. Turner, A., Fakra, S.C., Orcutt, B., Toner, B.M., Edwards, K.J. Biogenic iron oxide x-ray microscopy and spectromicroscopy: Integrated data from hydrothermal mats from the Loihi Seamount, Hawaii, Geochimica Cosmochimica Acta, in prep.

  • Service at USC

-Strategic Plan Research Subcommittee (2011)

-PI and Director of the Center for Dark Energy Biosphere Investigations (2010 -)

-Marine Environmental Biology student progress committee (2010 -)

- Diversity requirement subcommittee: University Committee on Curriculum (2009-2010).

- Co-Director of the Center for Electron Microscopy and Microanalysis (2009 –)

- Faculty speaker to the USC Board of Trustee’s quarterly meeting (2009)

- PI and Co-Director of the USC founded, NSF-sponsored Dark Energy Biosphere Institute Research Coordination Network (2009- 2014).

- Communications Collaborations with Director of Research Communications;

    • Blogging for USC during Sea-going research (2009, 2011, 2012). Carried at USC and as a 60 seconds science feature in Scientific American.

    • Writing of a “behind the scenes” Live Science article for USC (2009)

- Female Undergraduates Educating and Leading in Science faculty mentor (2009-2011)

- Tenure Promotion Committee Chair. MEB (2010-2011)

- Hiring Committee for the Earth Sciences Geobiology search (2007-2008)

- Section Annual Review Committee (2006-2008)

- Scanning Electron Microscope Evaluation Committee (2006-2007)

- Mentoring Committee. Assistant Professor, MEB (2007-2011)

  • Active Service outside USC

-Member: Science Advisory Structure to the IODP – Technology Panel (2011-)

-Task force: to the IODP for biological sampling (2006 -)

- International Steering Committee: Interridge Hydrothermal Energy and Ocean Carbon Cycles Working Group (2009-)

- International Steering Committee: Interridge Deep Earth Sampling Working Group (2003-)

  • Past Service outside USC

-Member: Writing Committee for the new program in scientific ocean drilling (2009-2011)

-Member: Committee on the origins and evolution of life (2009-2011)

- Ocean Drilling Renewal Leadership Team (2010-2011)

- REU lecturer for the Wrigley Summer Student fellow program (2007-2008)

- Co-organizer (with S. Finkel, MCB, and S. Goodman, Dentistry): Microbiology UORU (University Organized Research Unit); Retreats and other unit organization and coordination activities 2007-2010

- International Steering Committee: “Melting, Magma, Fluids and Life” Interridge Deep Earth Sampling Workshop (2008)

-International Steering Committee: INVEST IODP renewal conference, Bremen, Germany (2008-2009)

- International Advisory Committee: “Darwin Center for Geobiology”, The Netherlands (2007-2009)

- Steering committee member: Seamount Biogeoscience Network (2005-2010)

- Working Group Chair: Benthic systems, ICoMM (2004-2009)

- Working Group Leader – “Deep Life” workshop/initiative: Slone Deep Carbon Initiative (2008-)

- Panel Participant: American Academy for Microbiology “Microbes in a Changing World: Translations from Darwin” Colloquia Galapagos Ecuador (2009)

- US-CHART steering committee: US science steering committee for the IODP INVEST renewal conference (2008-2009)

- IODP-MI International ad-hoc committee on the “Framework for the Future of Scientific Ocean Drilling” (2008)

- Meeting organizer of the Wrigley Institute-supported Catalina Island “Dark Energy Biosphere Institute” planning workshop (2008)

- International Program Committee: Goldschmidt Meeting Science (2008)

- Steering Committee: Astrobiology Science Conference (2008)

- Working Group member: NSF Biogeosciences (2003-2005).

- Convener and steering committee: “Dark Energy” Workshop in Wood Hole, MA (2004)

- Member: Science Advisory Structure IODP (2002-2005)

- Panel Participant: American Academy for Microbiology “The Global Genome Question: Microbes as the Key to Understanding Evolution and Ecology” Colloquia FL USA (2002)

- Panel Participant: American Academy of Microbiology “Geobiology: Exploring the Interface Between the Geosphere and the Biosphere” Colloquia AZ USA (2000)

- National Science Foundation program panel service (2001, 2002, 2004)

  • Editing/reviewing/convening

- Convener, “Buried Alive: The Dark, Deep Biosphere of Intraterrestrial Life” Session, American Geophysical Union Fall Meeting, San Francisco (2009)

- Convener, “The Deep Biosphere” Colloquium, American Society for Microbiology Annual Meeting, Philadelphia, PA (2009)

- Convener, “The Deep Biosphere” Symposium, American Academy for the Advancement of Science Annual Meeting, Chicago, Illinois (2009)

- Editorial Board, Environmental Microbiology (2009 –)

- Editorial Board, Geobiology Journal (2008 –)

- Editorial Board, Geomicrobiology Journal (2005 –)

- Associate Editor, American Mineralogist (2002-2006)

- Convener, “Geomicrobiology of Hydrothermal Vents”, the America Society of Limnology & Oceanography Annual Meeting 2003, Salt Lake City (with Stefan Sievert)

- Convener, “Microbial Sulfur Transformations….”, the Geological Society of America Annual Meeting, Denver (2002)

- Convener, “of Earth and Microbes…” Session, Goldschmidt conference, Roanoke (2001)

- Textbook contributor, Microbiology, McGraw-Hill; Brock Biology of Microorganisms, Prentice-Hall; Geomicrobiology, Marcel Dekker

- Manuscript reviewer, Archives of Microbiology, Biofouling, Chemical Geology, Deep-Sea Research, FEMS Microbial Ecology, Geochimica Cosmochimica Acta, Geology, Nature, Research in Microbiology, Science, PNAS

- Proposal reviewer, National Science Foundation, the Petroleum Research Fund, the Natural Sciences and Engineering Research Council of Canada, NASA

  • Teaching USC

- Faculty graduate student seminar Fall (2006-2011)

- Advanced Biological Oceanography lecture (2006)

- Environmental Microbiology (2007, 2008, 2010)

- Geochemistry (2007)

- Geobiology & Astrobiology (2009, 2011)

- Oceanography (2010)

  • Past Teaching at MIT-WHOI

- Advanced Biological Oceanography lectures, 2005, 2006

- Mineralogy for Chemists and Biologists, 2005

- The Microbial View of Iron (2004)

- Marine Chemistry Topics (2001/2003)

  • Educational service and outreach

- COSEE-West Teacher workshop (2010-2011)

- Global Environmental Microbiology summer course lecture (2011)

- SEA Lab aquaria public lecture (2009)

- ECORD Summer Institute Faculty on the “Deep Biosphere” Course, Univ. Bremen (2008)

- Lectured in kindergarden-5th grade classrooms at Arroyo Vista Elementary, South Pasadena, CA (2006-2010)

- Lecturer in the Agouron “Geobiology” course, Catalina Island

- Instructor in the “Austral Summer Institute” course in Benthic Geology and Microbiology, Dichato, Chile (2006)

- Lectured 2nd Grade class At Mullen Hall Elementary, Falmouth, MA (2006)

- Lectured at a Montessori Elementary School, Columbus, OH grades 2-4 (2005)

- Lectures at Mullen Hall Elementary Community Day, Falmouth, MA (2005)

- Oceanography Workshop Lectures COSEE New England (2003-2004)

- Service on admission committee for the 2002 Marine Biological Laboratories “Molecular Evolution” course; Former student in course 2001

- Faculty and lecturer on MBL’s “Microbial Diversity” summer course (2002-2006).

- Lecturer in teacher enhancement workshops at MBL (2000-2004)

- Science mentor to middle school girls in Boston Public Schools through the NSF-sponsored program “Eyes to the Future”(2001-2003)

Current Postdoctorals

  • Jason Sylvan, 1/2008 –

  • Nina Knab, 4/2008 –

  • Jean-Paul Baquiran, 8/2011 –

  • Brandi Reese, 10/2011 –

Former Postdoctorals

  • Sarah Bennett, 4/09 – 7/11 (Postdoctoral Fellow, Jet Propulsion Laboratories)

  • Beth Orcutt, 4/07 – 10/09 (Adjunct non-tenure track Professor; Postdoctoral Research Associate, Univ. of Aarhus, Denmark)

  • Clara Chan, 2/06 – 1/09 (Assistant Professor, Univ. Delaware)

  • Brandy Toner, 6/05 – 1/08 (Assistant Professor, Dept. Soil, Water, Climate, Univ. MN, St. Paul)

  • Ashita Dhillon, 11/03 – 3/06 (principal supervisor: Dr. Mitch Sogin, Marine Biological Laboratories; Research Associate, Tuffs, Boston, MA)

  • Olivier Rouxel, 12/03 – 4/05 (Professor, Univ. Breast, France; Associate Scientist, WHOI)

  • Ben Van Mooy, 12/03 – 5/03 (principal supervisor: Dr. Dan Repeta, WHOI; Associate Scientist, Dept. Marine Chem. & Geochem. WHOI)

  • Ann Pearson, Postdoctoral Investigator 7/00-8/01 (Professor, Dept. Earth & Planet. Sci, Harvard Univ.)

  • Steven Petsch, Postdoctoral Scholar 11/99-7/02 (Associate Professor, Dept. Geosci., Univ. MA Amherst)

Current Graduate Students

  • Amanda Turner, USC Earth Sciences (ES) Program Ph.D. Candidate

  • Esther Singer, USC ES Ph.D. Candidate

  • Roman Barco, USC Marine Biology and Biological Oceanography Ph.D. Candidate (MEB)

  • Andrew Gross, USC MEB Ph.D. Program

  • Gus Raminez, USC MEB Ph.D. Program

  • Ryan Lesniewski, USC MEB Ph.D. Program

  • Colleen Hoffman, USC Oceanography M.S. Candidate

Current Undergraduate Students

  • John Zhon

  • Miguel Molina (Southern California Academy of Sciences Research Training Program for high school students)

  • Katherine Lee

  • Cassandra Gabara

Former Students

  • Jamie Waite, USC Molecular Biology & Biochemistry (M.S. 2012)

  • Tiffany Sia, Undergraduate Student 2010/2011

  • Colleen Hoffman, Undergraduate Student 2010/2011

  • Greg Horn, USC MEB MS Student (M.S. 2011)

  • Humberto Mora, Young Researchers Inner City Summer Program Fellow 2009

  • Clara Torrento, guest Ph.D. student from CSIC Barcelona, Spain; government fellow 2009

  • Ben Pyenson, Wrigley REU Summer fellow 2008

  • Grizelda Soto, Wrigley REU Summer fellow 2007

  • Cara Santelli, WHOI-MIT Student (Ph.D. 2007) (Chemical Oceanography)

  • Jeff Marlow, WHOI Summer Fellow 2006

  • Erin Banning, WHOI-MIT Student (Biological Oceanography)

  • Daniel Rogers, WHOI-MIT Student (Chemical Oceanography)

  • Peter Canovas, WHOI-MIT Student (M.S. 2006)

  • Sheri Simmons, WHOI-MIT Student (Ph.D. 2006) (Biological Oceanography)

  • Tyler Hickman, Summer Intern 2004

  • Lindsay Hirt, High School Intern 2002

  • Sara Selgrade, Summer Fellow 2002

  • Ronnie Woo, Summer Intern 2003

  • Heather Abbott, Summer Fellow 2001

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