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John Baross
University of Washington

Current Projects

NAI Project Collaborators

Publications

  • Anderson, R. E., Beltrán, M. T., Hallam, S. J., & Baross, J. A. (2012). Microbial community structure across fluid gradients in the Juan de Fuca Ridge hydrothermal system. FEMS Microbiology Ecology, 83(2), 324–339. doi:10.1111/j.1574-6941.2012.01478.x

    See Project

  • Anderson, R. E., Brazelton, W. J., & Baross, J. A. (2011). Is the Genetic Landscape of the Deep Subsurface Biosphere Affected by Viruses?. Frontiers in Microbiology, 2. doi:10.3389/fmicb.2011.00219

    See Project See Project See Project See Project

  • Anderson, R. E., Brazelton, W. J., & Baross, J. A. (2011). Using CRISPRs as a metagenomic tool to identify microbial hosts of a diffuse flow hydrothermal vent viral assemblage. FEMS Microbiology Ecology, 77(1), 120–133. doi:10.1111/j.1574-6941.2011.01090.x

    See Project See Project

  • Anderson, R. E., Brazelton, W. J., & Baross, J. A. (2013). The Deep Viriosphere: Assessing the Viral Impact on Microbial Community Dynamics in the Deep Subsurface. Reviews in Mineralogy and Geochemistry, 75(1), 649–675. doi:10.2138/rmg.2013.75.20

    See Project

  • Brazelton, W. J., & Baross, J. A. (2009). Abundant transposases encoded by the metagenome of a hydrothermal chimney biofilm. ISME J, 3(12), 1420–1424. doi:10.1038/ismej.2009.79

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  • Brazelton, W. J., & Baross, J. A. (2010). Metagenomic Comparison of Two Thiomicrospira Lineages Inhabiting Contrasting Deep-Sea Hydrothermal Environments. PLoS ONE, 5(10), e13530. doi:10.1371/journal.pone.0013530

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  • Brazelton, W. J., Ludwig, K. A., Sogin, M. L., Andreishcheva, E. N., Kelley, D. S., Shen, C-C., … Baross, J. A. (2010). Archaea and bacteria with surprising microdiversity show shifts in dominance over 1,000-year time scales in hydrothermal chimneys. Proceedings of the National Academy of Sciences, 107(4), 1612–1617. doi:10.1073/pnas.0905369107

    See Project

  • Brazelton, W. J., Mehta, M. P., Kelley, D. S., & Baross, J. A. (2011). Physiological Differentiation within a Single-Species Biofilm Fueled by Serpentinization. mBio, 2(4), e00127–11–e00127–11. doi:10.1128/mbio.00127-11

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  • Brazelton, W. J., Sogin, M. L., & Baross, J. A. (2010). Multiple scales of diversification within natural populations of archaea in hydrothermal chimney biofilms. Environmental Microbiology Reports, 2(2), 236–242. doi:10.1111/j.1758-2229.2009.00097.x

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  • Goldman, A. D., Baross, J. A., & Samudrala, R. (2012). The Enzymatic and Metabolic Capabilities of Early Life. PLoS ONE, 7(9), e39912. doi:10.1371/journal.pone.0039912

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  • Kaye, J. Z., Sylvan, J. B., Edwards, K. J., & Baross, J. A. (2010). Halomonas and Marinobacter ecotypes from hydrothermal vent, subseafloor and deep-sea environments. FEMS Microbiology Ecology, 75(1), 123–133. doi:10.1111/j.1574-6941.2010.00984.x

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  • Martin, W., Baross, J., Kelley, D., & Russell, M. J. (2008). Hydrothermal vents and the origin of life. Nat Rev Micro. doi:10.1038/nrmicro1991

    See Project

  • Opatkiewicz, A. D., Butterfield, D. A., & Baross, J. A. (2009). Individual hydrothermal vents at Axial Seamount harbor distinct subseafloor microbial communities. FEMS Microbiology Ecology, 70(3), 413–424. doi:10.1111/j.1574-6941.2009.00747.x

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  • Walter, M., Baross, J., Coustenis, A., Horner, J., Kress, M., Meech, K., … Woolf, N. (2011). Message from the Executive Council of the Astrobiology Society: The First Year. Astrobiology, 11(1), 75–75. doi:10.1089/ast.2011.1050

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  • Amaral-Zettler, L., Artigas, F., Baross, J., Bharathi, L., Boetius, A., Chandramohan, D., Herndl, G., Kogure, K., Schouten, S., Stal, L., Neal, P., Patterson, D., Pedrol-Alió, C., Thessen, A., J, d.L. & Sogin, M.  (2010).  A global census of marine microbes.  In: McIntyre, A. (Eds.).  Life in the World’s Ocean: Diversity, Distribution, and Abundance.  London: Wiley-Blackwell. See Project
  • Amaral-Zettler, L., Artigas, F., Baross, J.A., Bharathi, L., Boetius, A., Chandramohan, D., Herndl, G., Kogure, K., Schouten, S., Stal, L., Neal, P., Patterson, D., Pedrol-Alió, C., Thessen, A., De Leeuw, J. & Sogin, M.  (2010).  A global census of marine microbes.  In: McIntyre, A. (Eds.).  Life in the World’s Ocean: Diversity, Distribution, and Abundance.  London: Wiley-Blackwell. See Project
  • Amaral-Zettler, L., Artigas, L.F., Baross, J., Bharathi P.A, L., Boetius, A., Chandramohan, D., Herndl, G., Kogure, K., Neal, P., Pedrós-Alió, C., Ramette, A., Schouten, S., Stal, L., Thessen, A., Leeuw, J.d. & Sogin, M.  (2010).  A Global Census of Marine Microbes [Book Chapter].  Life in the World’s Oceans.  Wiley-Blackwell. See Project
  • Anderson, R. & Baross, J.  (2010).  Viral ecology and evolution in hydrothermal vents [talk].  Astrobiology Science Conference.  League City, TX. See Project
  • Anderson, R., Brazelton, W. & Baross, J.  (2010).  CRISPRs of hydrothermal vent isolates reveal insights into the co-evolution of thermophilic viruses and their hosts [poster].  Viruses of Microbes Conference.  Paris, France. See Project
  • Anderson, R., Brazelton, W. & Baross, J.  (2010).  Using metagenomics and CRISPR analyses to study hydrothermal vent viral communities [poster].  ISME Conference.  Seattle, WA. See Project
  • Anderson, R.E., Brazelton, W.J. & Baross, J.A.  (2010a).  Using metagenomics and CRISPR analyses to study hydrothermal vent viral communities.  ISME Conference.  Seattle, WA. See Project
  • Anderson, R.E., Brazelton, W.J. & Baross, J.A.  (2010b).  CRISPRs of hydrothermal vent isolates reveal insights into the co-evolution of thermophilic viruses and their hosts.  Viruses of Microbes Conference.  Paris, France. See Project
  • Anderson, R.E., Brazelton, W.J. & Baross, J.A.  (2011c).  Do viruses affect the genetic landscape of extreme subseafloor habitats?  Origins.  Montpellier, France. See Project
  • Anderson, R.E., Brazelton, W.J. & Baross, J.A.  (submitted).  Viral metagenomics and CRISPR spacer analyses reveal a unique viral assemblage at a deep-sea hydrothermal vent.  ISME Journal. See Project
  • Baross, J.A. & Brazelton, W.J.  (2008).  Submarine hydrothermal vents: limits of life, biofilms and early evolution.  European Science Foundation, Complex Systems and Changes: Water and Life.  Taormina, Sicily, Italy. See Project
  • Baross, J.A. & Impey, C.D.  (2011).  Astrobiology – A new synthesis.  In: Impey, C.D. & Lunine, J.L. (Eds.).  Frontiers in Astrobiology.  Vol. in press.  Cambridge University Press. See Project
  • Baross, J.A. & Impey, C.D.  (2012).  Astrobiology – A new synthesis.  Cambridge University Press, Frontiers of Astrobiology(In C. D. Impey, J. L. Lunine and J. Funes (Eds.)). See Project
  • Baross, J.A.  (2009).  Distant biosignatures: life on exoplanets.  AAAS Pacific Division Meeting.  San Francisco, CA. See Project
  • Baross, J.A.  (2009).  Is there a relationship between “minimal life” and the origins and evolution of life?  Santa Fe Institute Origin of Life MEeting: “Minimal Life”.  National Science Foundation. See Project
  • Baross, J.A.  (2009).  Submarine hydrothermal vents: limits of life, biofilms and early evolution.  Space Telescope Science Institute, May Symposium, The Search for Life in the Universe.  Baltimore, MD. See Project
  • Baross, J.A.  (2009).  Submarine hydrothermal vents: limits of life, early evolution and the search for habitable planets.  Pontifical Academy of Sciences Study Week on Astrobiology, Casma Pio IV.  Vatican City. See Project
  • Baross, J.A.  (2009).  The Encyclopedia of Microbiology.  In: Lederberg, J. & Schaechter, M. (Eds.).  London: Elsevier. See Project
  • Baross, J.A.  (2009).  The search for life in the universe: A new darwinian voyage.  NASA Lecture Series: Evolution of Biology, Technology, Science, and Exploration.  Mountain View, CA. See Project
  • Baross, J.A.  (2010).  Limits of life, early evolution and the search for habitable planets [oral, invited].  Geological Society of America.  Denver, CO. See Project
  • Baross, J.A.  (2010).  Minimal cells, hydrothermal vent biofilms and the origin of multi-cellular communities [oral, invited].  Deep-Sea Biology Workshop.  Brest, France. See Project
  • Baross, J.A.  (2010a).  Minimal cells, hydrothermal vent biofilms and the origin of multi-cellular communities.  Deep-Sea Biology Workshop.  Brest, France. See Project
  • Baross, J.A.  (2010b).  Limits of life, early evolution and the search for habitable planets.  American Geological Society.  Denver, CO. See Project
  • Baross, J.A.  (2011).  The 2011 SAS Fee Lectures in Astrobiology (with J. Lunine and J. Kastings). See Project
  • Baross, J.A.  (In prep).  Pressure and the origin of life.  In: Gargaud, M., Martin, H., Montmerle, T. & Lopez-Garcia, P. (Eds.).  Origin of Life: An Astrobiology Perspective.  Cambridge University Press. See Project
  • Brazelton, W.J. & Baross, J.A.  (2009).  Proto-cellular evolution, lateral gene transfer, syntrophic metabolisms, and archaeal biofilms of the Lost City Hydrothermal Field.  Astrobiology Graduate Student Conference.  Seattle, WA. See Project
  • Brazelton, W.J., Anderson, R.E., Mehta, M.P. & Baross, J.A.  (2010).  Lateral gene transfer in hydrothermal vents [talk].  ISME Conference.  Seattle, WA. See Project
  • Brazelton, W.J., Anderson, R.E., Mehta, M.P. & Baross, J.A.  (2010c).  Lateral gene transfer in hydrothermal vents.  ISME Conference.  Seattle, WA. See Project
  • Brazelton, W.J., Ludwig, K., Sogin, M., Andreishcheva, E., Kelley, D., Shen, C-C., Edwards, R.L. & Baross, J.A.  (In Review).  Archaeal and bacterial communities with surprising microdiversity show shifts in dominance over 1000-year time scales at the Lost City Hydrothermal Field.  Proceed. Natl. Acad. Sci. See Project
  • Brazelton, W.J., Ludwig, K.A., Schrenk, M.O., Kelley, D.S., Sogin, M.L. & Baross, J.A.  (2010d).  Novel insights into methane cycling, lateral gene transfer, and the rare biosphere within carbonate chimneys of the Lost City Hydrothermal Field.  American Geophysical Union Meeting.  San Francisco, CA. See Project
  • Brazelton, W.J., Ludwig, K.A., Sogin, M.L. & Baross, J.A.  (2009).  Dynamics of the rare biosphere in carbonate chimneys spanning a thousand years of the Lost City hydrothermal field.  ASLO Aquatic Sciences Meeting.  Nice, France. See Project
  • Brazelton, W.J., Mehta, M.P. & Baross, J.A.  (2010).  Potential role of lateral gene transfer in the evolution of biofilm communities at the Lost City hydrothermal field and in the earliest stages of cellular evolution.  Astrobiology Science Conference.  League City, TX. See Project
  • Brazelton, W.J., Sogin, M. & Baross, J.A.  (In Press).  Multiple scales of diversification within a single population of archaea in a hydrothermal vent biofilm.  Environmental Microbiology Reports. See Project
  • Goldman, A.D., Baross, J.A. & Samudraia, R.  (submitted).  The enzymatic and metabolic capabilities of life-forms following the origin of life.  PLoS One. See Project
  • Goldman, A.D., Samudraia, R. & Baross, J.A.  (In Press).  Rapid evolution of protein synthesis following the RNA world.  Molecular Biology and Evolution. See Project
  • Martin, W.J., Baross, J., Kelley, D. & Russell, M.J.  (2008).  Hydrothermal vents and the origin of life.  Nature Reviews Microbiology, 6: 805-814. See Project
  • Mumma, M., Des Marais, D.J., Baross, J., Sherwood Lollar, B., Hand, K., Villanueva, G., House, C., Ferry, G., McCollom, T., Sotin, C., Goldman, S., Vance, S. & Painter, T.  (2010).  The astrobiology of Mars: Methane and other candidate biomarker gases, and related interdisciplinary studies on Earth and Mars [abstract 5590]. Astrobiology Science Conference 2010. See Project
  • Opatkiewiez, A.D., Butterfield, D.A. & Baross, J.A.  (2008).  Isolation and stability of distinct subsurface microbial communities associated with two hydrothermal vent systems.  AGU Fall Meeting. See Project
  • Schrenk, M.O., Holden, J.F. & Baross, J.A.  (2008).  Magma to microbe networks in the context of sulfide hosted microbial ecosystems.  In: Lowell, R.P., Seewald, J.S., Metaxas, A. & Perfit, M.R. (Eds.).  Magma to Microbe, Modeling Hydrothermal Processes at Oceanic SPreading Centers.  Vol. 178.  Washington, D.C: American Geophysical Union. See Project
  • Stueeken, E.E., Anderson, R.E., Bowman, J.S., Brazelton, W.J., Colangelo-Lillis, J., Goldman, A.D., Som, S.M. & Baross, J.A.  (In Preparation).  The Hadean Earth as a global chemical reactor for the origin of life. See Project
  • Stüeken, E.E., Anderson, R., Bowman, J.S., Brazelton, W., Colangelo-Lillis, J., Goldman, A.D., Som, S.M. & Baross, J.A.  The Hadean Earth as a global chemical reactor for the origin of life.  Geobiology. See Project
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Past NAI Teams