All Stories

  1. Transhydrogenase and Growth Substrate Influence Lipid Hydrogen Isotope Ratios in Desulfovibrio alaskensis G20

    Article • Frontiers in Microbiology, June 2016, Frontiers

    Dr Alexander S Bradley, Dr. Theodore M Flynn

  2. Hopanoids as functional analogues of cholesterol in bacterial membranes

    Article • Proceedings of the National Academy of Sciences, September 2015, Proceedings of the National Academy of Sciences

    Dr Alexander S Bradley

  3. Patterns of sulfur isotope fractionation during microbial sulfate reduction

    Article • Geobiology, July 2015, Wiley

    Dr Alexander S Bradley

  4. Rethinking the Ancient Sulfur Cycle

    Article • Annual Review of Earth and Planetary Sciences, May 2015, Annual Reviews

    Dr Alexander S Bradley

  5. Multiple sulfur isotope signatures of sulfite and thiosulfate reduction by the model dissimilatory sulfate-reducer, Desulfovibrio alaskensis str. G20

    Article • Frontiers in Microbiology, November 2014, Frontiers

    Dr Alexander S Bradley

  6. Determination and application of the equilibrium oxygen isotope effect between water and sulfite

    Article • Geochimica et Cosmochimica Acta, January 2014, Elsevier

    Dr Alexander S Bradley

  7. Archaeal and bacterial glycerol dialkyl glycerol tetraether lipids in chimneys of the Lost City Hydrothermal Field

    Article • Organic Geochemistry, July 2013, Elsevier

    Dr Alexander S Bradley

  8. Influence of sulfate reduction rates on the Phanerozoic sulfur isotope record

    Article • Proceedings of the National Academy of Sciences, June 2013, Proceedings of the National Academy of Sciences

    Dr Alexander S Bradley

  9. Revisiting the dissimilatory sulfate reduction pathway

    Article • Geobiology, August 2011, Wiley

    Dr Alexander S Bradley

  10. Influence of subsurface biosphere on geochemical fluxes from diffuse hydrothermal fluids

    Article • Nature Geoscience, June 2011, Nature

    Dr Alexander S Bradley

  11. Adenosylhopane: The first intermediate in hopanoid side chain biosynthesis

    Article • Organic Geochemistry, October 2010, Elsevier

    Dr Alexander S Bradley

  12. Multiple origins of methane at the Lost City Hydrothermal Field

    Article • Earth and Planetary Science Letters, August 2010, Elsevier

    Dr Alexander S Bradley

  13. Structural diversity of diether lipids in carbonate chimneys at the Lost City Hydrothermal Field

    Article • Organic Geochemistry, December 2009, Elsevier

    Dr Alexander S Bradley

  14. Fossil steroids record the appearance of Demospongiae during the Cryogenian period

    Article • Nature, February 2009, Nature

    Dr Alexander S Bradley

  15. Extraordinary 13C enrichment of diether lipids at the Lost City Hydrothermal Field indicates a carbon-limited ecosystem

    Article • Geochimica et Cosmochimica Acta, January 2009, Elsevier

    Dr Alexander S Bradley

  16. Stable carbon isotope fractionation between substrates and products of Methanosarcina barkeri

    Article • Organic Geochemistry, May 2008, Elsevier

    Dr Alexander S Bradley

  17. Proteorhodopsin photosystem gene expression enables photophosphorylation in a heterologous host

    Article • Proceedings of the National Academy of Sciences, March 2007, Proceedings of the National Academy of Sciences

    Dr Alexander S Bradley

  18. Fractionation of carbon isotopes in Methanosarcina barkeri

    Article • Geochimica et Cosmochimica Acta, August 2006, Elsevier

    Dr Alexander S Bradley

  19. Constraining the timing of basal metazoan radiation using molecular biomarkers and U-Pb isotope dating

    Article • Geochimica et Cosmochimica Acta, August 2006, Elsevier

    Dr Alexander S Bradley

  20. Biogeochemistry of silicious biofilms in geothermal ecosystems

    Article • Geochimica et Cosmochimica Acta, August 2006, Elsevier

    Dr Alexander S Bradley

  21. Steroids, triterpenoids and molecular oxygen

    Article • Philosophical Transactions of the Royal Society B Biological Sciences, June 2006, Royal Society Publishing

    Dr Alexander S Bradley

  22. A Serpentinite-Hosted Ecosystem: The Lost City Hydrothermal Field

    Article • Science, March 2005, American Association for the Advancement of Science

    Dr Alexander S Bradley