PIRE News

Presentations

2013

Cassani M, Gelsinger DR, Jewell TN, Melloy S and de la Torre JR. 2013. Inhibition of ammonia oxidation in the thermophilic archaeon Nitrosocaldus yellowstonii. College of Science & Engineering Student Project Showcase, SFSU, San Francisco, CA.

Johnson AJA, Ludington W, Gray HM, DeRisi JL and de la Torre JR. 2013. Genomes of new nitrifying archaea from high temperature environments. College of Science & Engineering Student Project Showcase, SFSU, San Francisco, CA.

Manoharan, N. *, N.A. Calica, E.S. Boyd, and B.P. Hedlund. 2013. Distribution, thermal limit, and biogeography of nitrite-oxidizing bacteria in geothermal springs throughout the U.S. West. 3rd Annual Festival of Communities Creative Activities Symposium. April 20. Las Vegas, NV.

Manoharan, N. *, N.A. Calica, E.S. Boyd, and B.P. Hedlund. 2013. Distribution, thermal limit, and biogeography of nitrite-oxidizing bacteria in geothermal springs throughout the U.S. West. Nevada Undergraduate Research Symposium. April 15-16. Reno, NV.

Oiler, J.*, E.L. Shock, H.E. Hartnett, H. Yu. 2013. Micro-sensor array-enabled hot spring mapping. Goldschmidt 2013 Conference, Florence, Italy.

Paraiso, J.P.*, Williams, A.J., Hedlund, B.P., and Zhang, C.L. 2013. Survey of glycerol dialkyl glycerol tetraethers (GDGTs) in Nevada and California hot springs and selected thermophiles. 3rd Annual Festival of Communities Creative Activities Symposium. April 20. Las Vegas, NV.

Tamadonfar, K.O. *, S.C. Thomas, P. Dijkstra, J.A. Dodsworth, and B.P. Hedlund. 2013. Examining central carbon metabolism in the thermophile Thermoflexus hugenholtzii. 3rd Annual Festival of Communities Creative Activities Symposium. April 20. Las Vegas, NV.

Tamadonfar, K.O. *, S.C. Thomas, P. Dijkstra, J.A. Dodsworth, and B.P. Hedlund. 2013. Examining central carbon metabolism in the thermophile Thermoflexus hugenholtzii. Nevada Undergraduate Research Symposium. April 15-16. Reno, NV.

2012

Babbitt, A.B. *, Dodsworth, J.A., and Hedlund, B.P. 2012. Testing the importance of alternative catabolic pathways of Thermocrinis in Great Boiling Spring. UNLV Undergraduate Research Symposium. August 9. Las Vegas, NV.

Briggs, B.R., Brodie, E.L., Tom, L.M., Dong, H., Jiang, H., Huang, Q., Wang, S., Hou, S., Wu, G., Huang, L., Hedlund, B.P., and Zhang, C. L. 2012. Microbial distribution across geochemical and temporal conditions in the hot springs of Tengchong, Yunnan Province, China. AGU Fall meeting, San Francisco, Dec. 3-7, 2012.

Briggs, B.R. E.L. Brodie, L.M. Tom, H. Dong, H. Jiang, Q. Huang, S. Wang, W. Hou, G.Wu, J. Peacock, L. Huang, X. Zhi, W. Li, J.A. Dodsworth, B.P. Hedlund, C. Zhang. 2012. Candidate phyla distributions across pH, temperature, and temporal conditions in hot spring of Tengchong, Yunnan Providence, China. The 2nd International Geobiology Conference. Wuhan, China (Sep. 2012)

Boyd, E.*, Hamilton, T., Peters, J.W. 2012. On the Origin and Evolution of Complex Iron-Sulfur Enzymes. Astrobiology Science Conference 2012. April 15-20 in Atlanta, GA, U.S.A.

Boyd, E., de la Torre JR, Jewell T, Gray HM, Melloy S, Johnson AJA, Tung E, Theis RM, and Hedlund BP. 2012. Ammonia oxidizing archaea and their role in biogeochemical cycling in terrestrial hot spring ecosystems. 14th International Society for Microbial Ecology General Meeting ISME-14. Copenhagen, Denmark.

Edwards, T.A., Huang, D., Calica, N. *, Dodsworth, J.A., and Hedlund, B.P. 2012. Nitrite oxidation in Tengchong Geothermal System. Nevada Undergraduate Research Symposium. April 18-19. Reno, NV.

Edwards, T.A. *, Huang, D., Calica, N., Dodsworth, J.A., and Hedlund, B.P. 2012. Nitrite oxidation in Tengchong Geothermal System. 2nd Annual Festival of Communities Creative Activities Symposium. April 21. Las Vegas, NV.

Gieler, B. *, Cole, J.K., Orbeck, K., Paliso, M.K., Williams, A.J., Trinh, D., Dodsworth, J.A., Hong, M., Yu, T.T, Li, W.J., and Hedlund, B.P. 2012. Characterization of a novel order with the phylum Chloroflexi capable of cellulose degradation. UNLV Undergraduate Research Symposium. August 9. Las Vegas, NV.

Hamilton, T., Dore, J., Canovas, P., Havig, J., Spotts, T., Shock, E., Peters, J. W., Skidmore, M. 2012. Seasonal variation in biological methane production in a subglacial ecosystem. Astrobiology Science Conference 2012. April 15-20 in Atlanta, GA, U.S.A.

Hamilton, T.L.*, Fecteau, K. M., Havig, J. R., Vogl, K., Bryant, D. A., Shock, E. L., Peters, J. W., Boyd, E. 2012. Modeling the Habitat Range of Phototrophic Microorganisms in Yellowstone National Park: Toward the Development of a Comprehensive Fitness Landscape. Astrobiology Science Conference 2012. April 15-20 in Atlanta, GA, U.S.A.

Hamilton, T.L.*, Havig, J. R., Canovas, P., Skidmore, M., Peters, J.W., Shock, E.L., Boyd, E. 2012. Molecular evidence for indigenous lithoautotrophic microbial populations in a sub-ice environment. Astrobiology Science Conference 2012. April 15-20 in Atlanta, GA, U.S.A.

Hedlund, B.P.* 2012. Nitrogen cycling in extremis. 2012 Society for General Microbiology. March 26, Dublin, Ireland. (Invited oral presentation; international meeting.)

Jewell T, Johnson A, Gelsinger D & de la Torre JR. 2012. Physiological plasticity of the thermophilic ammonia oxidizing archaeon Nitrosocaldus yellowstonii in response to a changing environment. American Geophysical Union Annual Fall Meeting, San Francisco, CA, USA.

Jewell T & de la Torre JR. 2012. Ureolytic growth of archaeal nitrifiers in high temperature environments. West Coast Bacterial Physiologists Meeting, Asilomar, CA.

Johnson AJA and de la Torre JR. 2012. Diversity of ammonia-oxidizing archaea in extreme environments. NASA Astrobiology Graduate Conference, Pasadena, CA.

Li F., Zhang Y., Ren H., Song Z., Dong H., Li W., Zhang C. L. 2012. Environmental controls on the distribution of archaeal lipids in Tibetan hot springs: insight into the application of organic proxies for biogeochemical processes. American Geophysical Union Annual Meeting. December 3-7, 2012. San Francisco, CA. (Contributing Abstract not published)

Murugapiran, S.K.*, J.A. Dodsworth, P. Blainey, S. Quake, S.G. Tringe, T. G. del Rio, and B.P. Hedlund. 2012. Sincle-cell genomics and metagenomics of the OP9 lineage in US Great Basin hot springs. JGI User Meeting. March 23, Walnut Creek, CA. (Poster presentation).

Paraiso, J.P. *, Williams, A.J., Hedlund, B.P., and Zhang, C.L. 2012. Survey of glycerol dialkyl glycerol tetraethers (GDGTs) in Nevada and California hot springs and selected thermophiles. 13th Annual UNLV McNair Scholars Symposium. October 18. Las Vegas, NV. (8-page paper with same title was published in UNLV McNair Scholars Researth Journal, 6th Edition. 2012.)

Urschel, M*, Hamilton, T., Boyd, E., Peters, J.W., Shock, E., Canovas, P. 2012. Carboxydotrophy in Acid-Sulfate-Chloride (ASC) hot springs of Yellowstone National Park. Astrobiology Science Conference 2012. April 15-20 in Atlanta, GA, U.S.A.

Urschel, M.R., Peters, J.W., and Boyd, E. 2012. The relative importance of autotrophic and heterotrophic metabolisms in hyperthermophilic and chemotrophic communities in Yellowstone National Park. American Geophysical Union (AGU) Fall Meeting. December 3-7. San Francisco, CA.

Zhang C. L., Wang J., Dodsworth J. A. Williams A. J., Hedlund B. P. 2012. In Situ Production of Branched Glycerol Dialkyl Glycerol Tetraethers in a Great Basin Hot Spring. American Geophysical Union Annual Meeting. December 3-7, 2012. San Francisco, CA. (Contributing Abstract not published)

Zhang C. L., Wang J., Li F., He L., Dong H., Hedlund B., Boyd E. 2012. Archaeal and bacterial GDGT proxies for microbial biogeochemical dynamics in terrestrial hot springs. Gordon Conference on Organic Geochemistry. July 29-August 3, 2012. Holdnerness, NH. (Contributing Abstract not published)

2011

Alsop, E.B.*, Boyd, E.S., Shock, E.L., and Raymond, J. 2011. Environment as a driver of metabolism: A large scale proteomics analysis. 11th International Conference on Thermophiles Research. September 11-16, 2011 in Big Sky, MT, U.S.A.

Blainey, P.C.* and Quake, S.R. 2011. Microfluidic platforms for single-cell genomics on the benchtop. First International Conference on Geomicrobial Ecotoxicology. May 28-31, 2011 in Wuhan, China.

Boyd, E.S.*, Hamilton, T.L., and Peters, J.W. 2011. Environmental Constraints on the Distribution, Diversity, and Activity of Biological Nitrogen Fixation in the Yellowstone Geothermal Complex. First International Conference on Geomicrobial Ecotoxicology. May 28-31, 2011 in Wuhan, China.

Boyd, E.S.*, Hamilton, T.L., Spear, J.R., Lavin M., and Peters J.W. 2011. [FEFE]-hydrogenase in Yellowstone National Park: Evidence for dispersal limitation and phylogenetic niche conservatism. 11th International Conference on Thermophiles Research. September 11-16, 2011 in Big Sky, MT, U.S.A.

Dijkstra, P.*, Brown, J.R., Dodsworth, J.A., Hedlund, B.P., and Hungate, B.A. 2011. Aspects of N cycling in thermal environments. 11th International Conference on Thermophiles Research. September 11-16, 2011 in Big Sky, MT, U.S.A.

Dodsworth, J.A., Murugapiran, S.K., Gevorkian, J.*, Han, J., Woyke, T., Lucas, S.M., Pitluck, S., Pennacchio, L., Goodwin, L. and Hedlund, B.P. 2011. Isolation, characterization, and genome sequence of the first representative of a novel class within the Chloroflexi that is abundant in some US Great Basin hot springs and may play important roles in N and C cycling. First International Conference on Geomicrobial Ecotoxicology. May 28-31, 2011 in Wuhan, China.

Dodsworth, J.A., Murugapiran, S.K., Gevorkian, J.*, Han, J., Woyke, T., Lucas, S.M., Pitluck, S., Pennacchio, L., Goodwin, L. and Hedlund, B.P. 2011. Isolation, characterization, and genome sequence of the first representative of a novel class within the Chloroflexi that is abundant in some US Great Basin hot springs and may play important roles in N and C cycling. UNLV Undergraduate Research Symposium. August 9. Las Vegas, NV.

Dodsworth, J.A.*, Murugapiran, S.K., Gevorkian, J., Han, J., Woyke, T., Lucas, S.M., Pitluck, S., Pennacchio, L., Goodwin, L., and Hedlund, B.P. 2011. Isolation of the first representative of a novel class within the Chlorofexi that is abundant in some U.S. Great Basin hot springs and may play important roles in N and C cycling. 11th International Conference on Thermophiles Research. September 11-16, 2011 in Big Sky, MT, U.S.A.

Edwards, T.A., Huang, D., Calica, N.*, Dodsworth, J.A., and Hedlund, B.P. 2011. Nitrite oxidation in the Great Boiling Spring system in the US Great Basin. First International Conference on Geomicrobial Ecotoxicology. May 28-31, 2011 in Wuhan, China.

Edwards, T.A.*, Huang, D., Calica, N., Dodsworth, J.A., and Hedlund, B.P. 2011. Nitrite oxidation in the Great Boiling Spring system in the U.S. Great Basin. 11th International Conference on Thermophiles Research. September 11-16, 2011 in Big Sky, MT, U.S.A.

Edwards, T.A., Huang, D., Calica, N.*, Dodsworth, J.A., and Hedlund, B.P. 2011. Nitrite oxidation in the Great Boiling Spring system in the US Great Basin. UNLV Undergraduate Research Symposium. August 9. Las Vegas, NV.

Gray, H.M., Melloy, S.M., Theis, R., Johnson, A.J.A., Jewell, T., Tung, E., Hedlund, B.P., Stahl, D.A., and de la Torre, J.R.* 2011. Insights into high-temperature nitrogen cycling from studies of the thermophilic ammonia-oxidizing archaeon Nitrosocaldus yellowstonii. 11th International Conference on Thermophiles Research. September 11-16, 2011 in Big Sky, MT, U.S.A.

Gray, H.M.*, Theis, R.M., Johnson, A.J.A., and de la Torre, J.R. 2011. Inteins and integrated elements in the thermophilic ammonia-oxidizing archaeon Nitrosocaldus yellowstonii. 11th International Conference on Thermophiles Research. September 11-16, 2011 in Big Sky, MT, U.S.A.

Gray HM, Melloy S, Theis RM, Johnson AJA, Jewell T, Tung E, Hedlund BP, Stahl DA and de la Torre JR. 2011. Insights into the physiology and evolution of ammonia oxidizing archaea from studies of the thermophilic nitrifier Nitrosocaldus yellowstonii. Gordon Research Conference: Archaea: Ecology, Metabolism and Molecular Biology, Waterville Valley, NH.

Guy, J.K.*, Peacock, J.P., Dodsworth, J.A., Woyke, T., del Rio, T.G., and Hedlund, B.P. 2011. A spatial and temporal analysis of microbial communities in Great Boiling Spring, Nevada, by 16S rRNA gene pyrotag analysis. 11th International Conference on Thermophiles Research. September 11-16, 2011 in Big Sky, MT, U.S.A.

Guy, J.K., Peacock, J.P.*, Murugapiran, S.K., Dodsworth, J.A., Woyke, T., del Rio, T.G., and Hedlund, B.P. 2011. A Spatial and Temporal Analysis of Microbial Communities in Great Boiling Spring, Nevada, by 16S rRNA Gene Pyrotag Analysis. First International Conference on Geomicrobial Ecotoxicology. May 28-31, 2011 in Wuhan, China.

Guy, J.K., Peacock, J.P., Murugapiran, S.K., Dodsworth, J.A., Woyke, T., del Rio, T.G., and Hedlund, B.P.* 2011. A Spatial and Temporal Analysis of Microbial Communities in Great Boiling Spring, Nevada, by 16S rRNA Gene Pyrotag Analysis. Inagural Meeting of Bergeys International Society for Microbial Systematics (BISMiS). May 19-23. Beijing, China.

Guy, J.K., Peacock, J.P.*, Murugapiran, S.K., Dodsworth, J.A., Woyke, T., del Rio, T.G., and Hedlund, B.P. 2011. A Spatial and Temporal Analysis of Microbial Communities in Great Boiling Spring, Nevada, by 16S rRNA Gene Pyrotag Analysis. UNLV Undergraduate Research Symposium. August 9. Las Vegas, NV.

Hamilton, T.L.*, Boyd, E.S., and Peters, J.W. 2011. Origin and evolution of biological nitrogen fixation. 11th International Conference on Thermophiles Research. September 11-16, 2011 in Big Sky, MT, U.S.A. Outstanding poster award.

Hamilton, T.L.*, Boyd, E.S., and Peters, J.W. 2011. Origin and evolution of biological nitrogen fixation. Origins 2011. July 3-8, 2011 in Montpellier, France. Outstanding poster award. H. Hartnett*. Major-element and trace-element biogeochemistry in contrasting hydrothermal ecosystems: Tengchong, P.R.C. and Yellowstone National Park, U.S.A. Yunnan University, Kunming, China.

Hartnett, H.* 2011. Comparison of major- and trace-element biogeochemistry among hot springs from Tengchong, P.R. China and Yellowstone National Park, U.S.A. First International Conference on Geomicrobial Ecotoxicology. May 28-31, 2011 in Wuhan, China.

Hartnett, H.* 2011. Developing a geochemical context for the US-China collaborative investigation of hot springs in Tengchong, Yunnan Province. 11th International Conference on Thermophiles Research. September 11-16, 2011 in Big Sky, MT, U.S.A.

Hedlund, B.P.* (on behalf of 19 other authors). 2011. The Tengchong Geothermal System PIRE Project: US-China Collaboration in Action. First International Conference on Geomicrobial Ecotoxicology. May 28-31, 2011 in Wuhan, China.

Hedlund, B.P.*, Dodsworth, J.A., Guy, J., Peacock, J., Han, J., Hungate, B.A., de la Torre, J.R., Woyke, T., Lucas, S.M., Pitluck, S.; Edwards, T.A., Pennacchio, L., Huang, D., Calica, N., Gevorkian, J., Zhang, C., Murugapiran, S.K., and Goodwin, L. 2011. The emerging view of life in Great Boiling Spring, Nevada. 11th International Conference on Thermophiles Research. September 11-16, 2011 in Big Sky, MT, U.S.A.

Huang, Q.*, Jiang, H., Wang, S., Wang, G., Fang, B., Ding, X., Niu, L., Li, X., Zhang, C., and Dong, H. 2011. Archaeal and Bacterial Diversity in Hot Springs on the Tibetan Plateau, China. First International Conference on Geomicrobial Ecotoxicology. May 28-31, 2011 in Wuhan, China.

Hungate, B.A.* 2011. Nitrous oxide consumption and methane production in thermal environments of Tengchong and Ruidian, China. First International Conference on Geomicrobial Ecotoxicology. May 28-31, 2011 in Wuhan, China.

Jewell, T.* and de la Torre, J.R. 2011 The ammonia oxidizing archaeon Nitrosocaldus yellowstonii provides new insights into the mechanics of nitrification at high temperatures. 11th International Conference on Thermophiles Research. September 11-16, 2011 in Big Sky, MT, U.S.A.

Jiang, H.* 2011. Actinobacterial Diversity in Microbial Mats of Five Hot Springs in Central and Central-Eastern Tibet, China. First International Conference on Geomicrobial Ecotoxicology. May 28-31, 2011 in Wuhan, China.

Jiang, H.*, Dong, H., Zhi, X., Hou, W., Wang, S., Dodsworth, J.A., Hedlund, B.P., Zhang, C., and Li, W.J. 2011. Microbial diversity in hot springs of Tengchong (Yunnan Province) and Naqu (Tibet). 11th International Conference on Thermophiles Research. September 11-16, 2011 in Big Sky, MT, U.S.A.

Johnson, A.J.A.*, Theis, R.M., Gray, H.M., Dodsworth, J.A., Hedund, B.P., and de la Torre, J.R. 2011. Comaring hot spring metagenomes to the complete genome of the ammonia-oxidizing thermophilic archaeon, Nitrosocaldus yellowstonii. 11th International Conference on Thermophiles Research. September 11-16, 2011 in Big Sky, MT, U.S.A.

Murugapiran, S.K., Dodsworth, J.A., Guy, J.K., Peacock, J.P.*, Woyke, T., Tringe, S.G. and Hedlund, B.P. 2011. Novel thermophilic microorganisms and cellulases for improving second-generation biofuel technologies. First International Conference on Geomicrobial Ecotoxicology. May 28-31, 2011 in Wuhan, China.

Murugapiran, S.K., Dodsworth, J.A., Guy, J.K., Peacock, J.P., Woyke, T., Tringe, S.G. and Hedlund, B.P.* 2011. Novel thermophilic microorganisms and cellulases for improving second-generation biofuel technologies. Inagural Meeting of Bergeys International Society for Microbial Systematics (BISMiS). May 19-23. Beijing, China.

Murugapiran, S.K.*, Dodsworth, J.A., Guy, J.K., Peacock, J., Woyke, T., Tringe, S.G., and Hedlund, B.P. 2011. Thermophilic cellulolytic enrichments as sources of novel microorganisms and cellulases for improving second-generation biofuels. 11th International Conference on Thermophiles Research. September 11-16, 2011 in Big Sky, MT, U.S.A.

Oiler, J.*, K. Schliep, H.E. Hartnett, E. Shock, and H. Yu. 2011. Using MEMS sensor arrays to measure temperature at small spatial scales in hot spring environments. B14A-01 presented at 2011 Fall Meeting. AGU San Francisco, CA.

Palisoc, M.M.*, Guy, J.K., Peacock, J.P., Dodsworth, J.A., Trinh, D.C., and Hedlund, B.P. 2011. Novel thermophilic cellulolytic isolates belonging to the phylum Chloroflexi. UNLV Undergraduate Research Symposium. August 9. Las Vegas, NV.

Peng, X.* and Zhou H. 2011. Geomicrobiology of Si-rich hydrothermal deposits from the ultra-slow spreading southwest Indian Ridge. 11th International Conference on Thermophiles Research. September 11-16, 2011 in Big Sky, MT, U.S.A.

Peters, J.W.*, Hamilton, T.L., Vogl, K., Bryant, D.A., and Boyd, E.S. 2011. Environmental constraints defining the distribution, composition, and evolution of chlorophototrophs in thermal features Yellowstone National Park. 11th International Conference on Thermophiles Research. September 11-16, 2011 in Big Sky, MT, U.S.A.

Schoenfeld, T.*, Hermersmann, N., Moser, M., Hedlund, B.P., Dodsworth, J.A., and Mead, D. 2011. Comparative viral metagenomics of neutral hot springs in Yellowstone and Nevada reveals high genetic diversity and identifies novel replication operons and useful reagent enzymes. 11th International Conference on Thermophiles Research. September 11-16, 2011 in Big Sky, MT, U.S.A.

Song, Z.-Q.* 2011. Crenarchaeotal Diversity and Ecological Function in Terrestrial Hot Springs of Tengchong (China). First International Conference on Geomicrobial Ecotoxicology. May 28-31, 2011 in Wuhan, China

St.Clair, B.*, Prapaipong, P., and Shock E. 2011. Large variations in metal abundance and speciation in hot spring ecosystems at Yellowstone National Park. 11th International Conference on Thermophiles Research. September 11-16, 2011 in Big Sky, MT, U.S.A.

Xie W., Wang J., Li F., Wei Y., Dong H., Hedlund B., Zhang C.L. 2011. Occurrence of branched GDGT-lipids in Tengchong hot springs, China. American Geophysical Union Annual Meeting. Dec. 4-9, 2011. San Francisco.

Zhang, C.* 2011. Factors affecting Archaeal Lipid Compositions of the Sulfolobus Species. First International Conference on Geomicrobial Ecotoxicology. May 28-31, 2011 in Wuhan, China.

Zhang, C.L.*, Wang, J., Li, F., He, L., Song, Z., Li, W., Dong, H., Zhang, Y., Jiang, H., Boyd, E., Dodsworth, J.A., and Hedlund, B.P. 2011. Intact polar tetraether lipids of archaea and bacteria from hot springs in China and the USA. 11th International Conference on Thermophiles Research. September 11-16, 2011 in Big Sky, MT, U.S.A.

Zhou, E., Tang, X., Zhang, J., Yu, T., Song, Z., Tang, S., and Li, W.* 2011. Diversity of culturable thermophilic bacteria in geothermal area of Tengchong, China. 11th International Conference on Thermophiles Research. September 11-16, 2011 in Big Sky, MT, U.S.A.

Zhou, E.-M.* 2011. Diversity of culturable prokaryotic thermophiles in geothermal area of Tengchong, China. First International Conference on Geomicrobial Ecotoxicology. May 28-31, 2011 in Wuhan, China.

Zhou, H.*, Wang, H., Wu, Z., Peng, X., Ren, D., Huang, D., and Ma, W. 2011. Spacial and Temporal Physical and Chemical Variation Monitoring in Tengchong ReHai Hot Spring Field, Yunnan Province, China. 11th International Conference on Thermophiles Research. September 11-16, 2011 in Big Sky, MT, U.S.A.

2010

Boyd, E.S.*, Hamilton, T.L., and Peters, J.W. 2010. Environmental Constraints on the Distribution, Diversity, and Activity of Biological Nitrogen Fixation in the Yellowstone Geothermal Complex. AGU Meeting, December 16, 2010. San Francisco, CA.

Boyd, E.S.*, Hamilton, T.L., and Peters, J.W. 2010. Environmental Constraints on the Distribution, Diversity, and Activity of Biological Nitrogen Fixation in the Yellowstone Geothermal Complex. Gordon Research Seminar. Feb. 3rd, 2011, in Ventura, CA.

de la Torre JR. 2010. Insights into high-temperature nitrogen cycling from studies of the thermophilic ammonia-oxidizing archaeon Nitrosocaldus yellowstonii. American Geophysical Union Annual Fall Meeting, San Francisco, CA, USA.

H. Hartnett*. 2010. Nitrogen Cycling in Yellowstone National Park Hot Springs. US-China Geomicrobiology Workshop. Penn State University, State College, PA.

Hedlund, B.P.* (on behalf of 19 other authors). 2010. The Tengchong Geothermal System PIRE Project: US-China Collaboration in Action. Workshop: US-China Collaborative Research on Geomicrobiological Processes in Extreme Environments. Penn State University, May 18-23, 2010.

Huang, Q.*, Jiang, H., Dong, H., and Zhang, C.L. 2010. Microbial diversity in hot springs on the Tibetan Plateau, China. AGU Fall Meeting, San Francisco, CA.