John Baross

POSITION
Professor, Oceanography

ASTROBIOLOGY RESEARCH AREAS
Origin & Evolution of Life on Earth
Life in Extreme Environments

BOX NUMBER
357940

OFFICE
MSB 260

EMAIL
jbaross@u.washington.edu

John Baross is a Professor in Oceanography and the Astrobiology Program at the University of Washington. He specializes in the ecology, physiology, and taxonomy of microorganisms from hydrothermal vent environments, and the use of biochemical and molecular methods to detect, quantify, and classify the same.

John has particular interests in the microbial ecology of extreme environments, the biotechnological applications of microorganisms that grow in extreme environments, astrobiology, and in the significance of submarine hydrothermal vent environments for the origin and evolution of life. The novel environment and microbes present at Lost City are of great interest to John and his laboratory group. Samples recovered from this field offer potential for new discoveries and insights into life in the extreme environments of hydrothermal vents.

Selected Publications

Baross, J. A. (2018). The rocky road to biomolecules. Nature, 42–43. https://doi.org/10.1038/d41586-018-07262-8

Stüeken, E. E., Buick, R., Anderson, R. E., Baross, J. A., Planavsky, N. J., & Lyons, T. W. (2017). Environmental niches and metabolic diversity in Neoarchean lakes. Geobiology, 767–783. https://doi.org/10.1111/gbi.12251

Kacar, B., Guy, L., Smith, E., & Baross, J. (2017). Resurrecting ancestral genes in bacteria to interpret ancient biosignatures. Philosophical Transactions of the Royal Society A: Mathematical,    Physical and Engineering Sciences, 20160352. https://doi.org/10.1098/rsta.2016.0352

Rettberg, P., Anesio, A. M., Baker, V. R., Baross, J. A., Cady, S. L., Detsis, E., … Westall, F. (2016). Planetary Protection and Mars Special Regions—A Suggestion for Updating the Definition. Astrobiology, 119–125. https://doi.org/10.1089/ast.2016.1472

Lin, T. J., Ver Eecke, H. C., Breves, E. A., Dyar, M. D., Jamieson, J. W., Hannington, M. D., … Holden, J. F. (2016). Linkages between mineralogy, fluid chemistry, and microbial communities within hydrothermal chimneys from the Endeavour Segment, Juan de Fuca Ridge. Geochemistry, Geophysics, Geosystems, 300–323. https://doi.org/10.1002/2015gc006091

Glein, C. R., Baross, J. A., & Waite, J. H., Jr. (2015). The pH of Enceladus’ ocean. Geochimica et Cosmochimica Acta, 202–219. https://doi.org/10.1016/j.gca.2015.04.017

Baross, J. A., & Martin, W. F. (2015). The Ribofilm as a Concept for Life’s Origins. Cell, 13–15. https://doi.org/10.1016/j.cell.2015.06.038

Anderson, R. E., Sogin, M. L., & Baross, J. A. (2014). Biogeography and ecology of the rare and abundant microbial lineages in deep-sea hydrothermal vents. FEMS Microbiology Ecology, 1–11. https://doi.org/10.1093/femsec/fiu016

Anderson, R. E., Sogin, M. L., & Baross, J. A. (2014). Evolutionary Strategies of Viruses, Bacteria and Archaea in Hydrothermal Vent Ecosystems Revealed through Metagenomics. PLoS ONE, e109696. https://doi.org/10.1371/journal.pone.0109696

Stüeken, E. E., Anderson, R. E., Bowman, J. S., Brazelton, W. J., Colangelo-Lillis, J., Goldman, A. D., … Baross, J. A. (2013). Did life originate from a global chemical reactor? Geobiology, 101–126. https://doi.org/10.1111/gbi.12025

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, 1612–1617. https://doi.org/10.1073/pnas.0905369107

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, 120–133. https://doi.org/10.1111/j.1574-6941.2011.01090.x

Brazelton, W. J., Mehta, M. P., Kelley, D. S., & Baross, J. A. (2011). Physiological Differentiation within a Single-Species Biofilm Fueled by Serpentinization. MBio. https://doi.org/10.1128/mbio.00127-11