Peer Reviewed Research Articles: (30)

30. J. Laidler, J. A. Shugart, S. Cady, K. S. Bahjat and K. M. Stedman. Reversible Inactivation and Desiccation Tolerance of Silicified Viruses. J.Virology, 87/24, published online 9 Oct. 2013 doi: 10.1128/JVI.02825-13
29. K. Stedman. Mechanisms for RNA capture by ssDNA viruses: Grand Theft RNA! (2013) Journal of Molecular Evolution, 76/6 359-364. Published online 20 June 2013 doi: 10.1007/s00239-013-9569-9 (On the cover) PMID: 23784142

28. P. L. Siering, G. V. Wolfe, M. S. Wilson, A. N. Yip, C. M. Carey, C. D. Wardman, R. S. Shapiro, K. M. Stedman, J. Kyle, T. Yuan, J. D. Van Nostrand, Z. He, and J. Zhou. Microbial Biogeochemistry of Boiling Springs Lake: a Physically Dynamic, Oligotrophic, Low pH Geothermal Ecosystem. (2013) Geobiology 11/4 356-376. Doi: 10.1111/gbi.12041. PMID: 23679065

27. K. M. Stedman, N. Kosmicki, and G. S. Diemer, Codon usage frequency of RNA virus genomes from high temperature acidic envirnment metagenomes. (2013) J. Virology 87/3 1919  doi: 10.1128/JVI.02610-12. PMCID: PMC3554165

26. R. M. Ceballos, C. D. Marceau, J. O. Marceau, S. Morris, A. J Clore, and K. M Stedman. Differential Virus Host-Ranges of the Fuselloviridae of Hyperthermophilic Archaea: Implications for Evolution in Extreme Environments.  (2012) Frontiers in Microbiology. 3: 295 doi:10.3389/fmicb.2012.00295 PMCID: PMC3426928
25. E. Iverson and K. M. Stedman. A genetic study of SSV1, the prototypical fusellovirus. (2012). Frontiers in Microbiology. 3: 200. doi: 10.3389/fmicb.2012.00200. PMCID: PMC3367457

24. G. S. Diemer and K. M. Stedman. A Novel Virus Genome Discovered in an Extreme Environment Suggests Recombination between Unrelated Groups of RNA and DNA Viruses.  (2012) Biology Direct, 7(1):13. PMID: 22515485, PMCID: PMC337243 doi:10.1186/1745-6150-7-13 “Highly Accessed”, Published 11 June, 2012. 

• Research award for ‘Computational and high-throughput studies in genomics and systems biology’ category in Biomed Central Journals.  22 April, 2013
• 7th annual Biomed Central Research Award. (Best article in BioMedCentral Journals in 2012) 22 April, 2013 : http://www.biomedcentral.com/researchawards/

Covered in :

• New Scientist : http://www.newscientist.com/article/mg21428613.500-first-glimpse-at-the-viral-birth-of-dna.html
• Nature: http://blogs.nature.com/news/2012/04/hot-spring-yields-hybrid-genome.html
• Scientific American: http://www.scientificamerican.com/article.cfm?id=hot-spring-yields-new-hybrid-viral-genome
• Discover Magazine – 80 Beats http://blogs.discovermagazine.com/80beats/2012/04/23/
• Virology Blog by Vincent Racaniello http://www.virology.ws/2012/07/19/a-dna-virus-with-the-capsid-of-an-rna-virus/
• Etc. . . .

23. M. DeYoung, M. Thayer, J. van der Oost, and K.M. Stedman (2011). Growth phase dependent gene regulation in vivo in Sulfolobus solfataricus. FEMS Microbiology Letters, 321/2, 92-99. Published online 6 June 2011. DOI: 10.1111/j.1574-6968.2011.02313.x PMID: 21595744

22. J. Laidler and K.M. Stedman (2010) Virus Silicification under Simulated Hot Spring Conditions. Astrobiology 10/6. 569-576. (On the Cover).  Editor’s “key” selection PMID: 20735248

21. K.M. Stedman, R. Porter, and M. Dyall-Smith.  (2010) The isolation of viruses infecting Archaea,  pp57-64. In: S.W. Wilhelm, M.G. Weinbauer and C.A. Suttle [eds], Manual of Aquatic Viral Ecology. Waco, American Society for Limnology and Oceanography doi:10.4319/mave.2010.978-0-9845591-0-7

20. A. Clore and K. Stedman. The SSV1 viral integrase is not essential. (2007) Virology, 361, 103-111. PMID: 17175004

19. R. Barry, M. Young, K. Stedman, E. Dratz. Proteomic Mapping of the Extremophilic Archaeon Sulfolobus solfataricus P2. (2006) Electrophoresis, 27/14, 2970-2983 PMID: 16721906

18. G. Erauso, K. M. Stedman, H. J. G. van de Werken, W. Zillig, and J. van der Oost. Two novel conjugative plasmids from a single strain of Sulfolobus. (2006) Microbiology 152/7, 1951-1968. PMID: 16804171

17. A. Clore and K. Stedman. Long Inverse PCR using iProof© polymerase.   (2005) Bio-Rad Bulletin 5337 Rev A.

16. G. Rice, L. Tang, K. Stedman, F. Roberto, J. Spuhler, J.E. Johnson, T. Douglas, and M. Young.  The Structure of a Thermophilic Virus Shows that a dsDNA Viral Capsid Type Spans All Domains of Life. (2004). Proc. Natl. Acad. Sci. U.S.A. 101/20, 7716-7720 Published online: PNAS Early Edition, May 3rd, 2004. 10.1073/pnas.0401773101. PMID: 11606757
Listed as a “highlight” in “selected articles” at the PNAS WWW site as “Uprooting the viral tree” http://www.pnas.org/misc/highlights.shtml
Covered in News and Views in Nature (Vol 429, 13 May, 2004, p 147)
Covered in ASM News, Current Topics, Volume 70, Number 9, 2004
Commentary: Roger W. Hendrix Hot new virus, deep connections, (2004). Proc. Natl. Acad. Sci. U.S.A. 101/20, 7495-7496

15. B. Wiedenheft,  K. M. Stedman, F. Roberto, D. Willits, A. Gleske, L. Zoeller, J. Snyder, T. Douglas, and M. Young.  Comparative Genomic Analysis of Hyperthermophilic Archaeal Fuselloviridae Viruses. (2004) J. Virology, 78/4, 1954-1961. PMCID: PMC369504

14. M. Jonuscheit, E. Martusewitsch, K. M. Stedman, and C. Schleper.  A Reporter Gene System for the Hyperthermophilic Archaeon Sulfolobus solfataricus based on a selectable and integrative shuttle-vector. (2003) Molecular Microbiol.48/5, 1241-1252. PMID: 12787352

13. K. M. Stedman, Q. She, H. Phan, H. P. Arnold, I. Holz, R. A. Garrett, and W. Zillig.  Relationships between fuselloviruses infecting the extremely thermophilic archaeon Sulfolobus: SSV1 and SSV2. (2003) Res. Microbiol. 154/4, 295-302. PMID: 12798235

12. G. Rice, K. Stedman, J. Snyder, B. Wiedenheft, D. Willits, S. Brumfield, T. McDermott, and M. Young. Viruses from Extreme Thermal Environments.  (2001) Proc. Natl. Acad. Sci. U.S.A. 98/23, 13341-13345. PMID: 11606757

11. K. M. Stedman, Q. She, I. Holz, H. Singh, R. A. Garrett, and W. Zillig.  The pING family of conjugative plasmids from the extremely thermophilic archaeon Sulfolobus islandicus: insights into recombination and conjugation in Crenarchaeota. (2000) J. Bacteriol. 182/24, 7014-7020. PMCID: PMC94828

10. H. P. Arnold, Q. She, H. Phan, K. Stedman, D. Prangishvili, I. Holz, J. K. Kristjanson, R. A. Garrett, and W. Zillig.  The Genetic Element pSSVx of the Extremely Thermophilic Crenarchaeon Sulfolobus is a Hybrid between a Plasmid and a Virus. (1999) Molecular Microbiol.  34/2, 217-226. PMID: 10564466

9. K. M. Stedman, C. Schleper, E. Rumpf, and W. Zillig.  Genetic Requirements for the Function of the Archaeal Virus SSV1 in Sulfolobus solfataricus: Construction and Testing of Viral Shuttle Vectors. (1999) Genetics, 152/4, 1397-1405.  PMCID: PMC1460719

8. D. Prangishvili, S.-V. Albers, I. Holz, H. P. Arnold, K. Stedman, T. Klein, H. Singh, J. Hiort, A. Schweier, J. K. Kristjansson, and W. Zillig. Conjugation in Archaea: Frequent Occurrence of Conjugative Plasmids in Sulfolobus. (1998) Plasmid, 40/3, 190-202. PMID: 9806856

7. Q. She, H. Phan, R. A. Garrett, S.-V. Albers, K. M. Stedman, and W. Zillig.  Genetic Profile of pNOB8 from Sulfolobus: the first conjugative plasmid from an archaeon. (1998) Extremophiles 2/4, 417-425. PMID: 9827331

6. W. Zillig, H. P. Arnold, I. Holz, D. Prangishvili, A. Schweier, K. Stedman, Q. She, H. Phan, R. Garrett, and J. K. Kristjansson.  Genetic Elements in the Extremely Thermophilic Archaeon Sulfolobus. (1998) Extremophiles, 2/3, 131-140. PMID: 9783157

5. M. Nohaile, D. Kern, D. Wemmer, K. Stedman, and S. Kustu.  Structural and Functional Analyses of Activating Amino Acid Substitutions in the Receiver Domain of NtrC:  Evidence for an Activating Surface. (1997) J.Mol.Biol. 273, 299-316. PMID: 9367763

4. K. E. Klose, A. K. North, K. M. Stedman, and S. Kustu.  The Major Dimerization Determinants of the Nitrogen-Regulatory Protein NTRC from Enteric Bacteria lie in its Carboxy-terminal Domain.  (1994) J.Mol.Biol. 241, 233-245. PMID: 8057363

3. A. K. North, K. E. Klose, K. M. Stedman, and S. Kustu.  Prokaryotic Enhancer-Binding Proteins Reflect Eukaryote-Like Modularity: the Puzzle of Nitrogen Regulatory Protein C.  (1993) J. Bacteriol. 175, 4267-4273. PMCID: PMC204865

2. G. Spik, B. Haendler, O. Delmas, C. Mariller, M. Chamoux, P. Maes, A. Tartar, J. Montreuil, K. Stedman, H. P. Kocher, P. C. Hiestand, and N. R. Movva.  A Novel Secreted Cyclophilin-like Protein (SCYLP).  (1991) J. Biol. Chem. 266, 10735-10738. PMID: 2040592

1. G. S. Tyndall, K. M. Stedman, W. Schneider, J. P. Burrows, and G. K. Moortgat.  The Absorption Spectrum of ClNO between 190 and 350 nm.  (1987) J. Photochemistry  36, 133-139.

Published Abstracts: (11)

11. Kenneth Stedman. Viruses from high temperature environments. (2013) XII Congresso Nacional de Virología, Burgos 2013. Virología 16/2 : 83

10. Jennifer Kyle, Linda Jahnke, and Kenneth M. Stedman. Preservation Potential of Lipid-containing Viruses under Silicifying Conditions. 43rd Lunar and Planetary Science Conference, (19-23 March, 2012, Woodlands Texas.)

9. K. Stedman and B. Blumberg. Astrovirology (2008) Astrobiology 8/2: 316

8. A. J. Clore. and K. Stedman Whole genome sequencing of extreme Fuselloviruses and their biogeography (2008) Astrobiology 8/2: 316

7. J. Laidler and K. Stedman. Silicification of Viruses in a Simulated Hydrothermal Environment (2008) Astrobiology 8/2: 317

6. C. Marceau, K. Blair, B. Wombold. R. M. Ceballos, M. Ceballos, K. Stedman Sulfolobus Spindle-shaped Viruses and Host Cross-Infection Studies. (2008) Astrobiology 8/2: 318

5. K. Stedman, Viruses from Extreme Environments (2005) Geochim Cosmochim Acta 69/10: A36-A36 Suppl. S MAY

4. K. Stedman, and B. Blumberg The NAI Virus Focus Group. (2005) Astrobiology .5/2, 178.

3. K. Stedman, G. Rice, L. Tang, J.E. Johnson, and M. Young. Ancient Viruses from Extreme Environments? (2005) Astrobiology .5/2, 267-268.

2. D. Wemmer, D. Kern, M. Nohaile, B. Volkman, S. Kustu, and K. Stedman, NMR studies of receiver domain activation: NTRC (1997) Abstracts of Papers of the American Chemical Society 214: 203-Phys Part 2.

1. K. M. Stedman, A.K. North, K.E. Klose, and S.G. Kustu,  Dimerization of NTRC - How and Why? (1994) J. Cellular Biochem. 65-65 Suppl. 18c

Review articles and Thesis: (18)

18. K.M. Stedman (2014) Virus – Long Entry. In: Encyclopedia of Astrobiology, 2nd edition (M. Gargaud, R. Amils, J. Cernicharo Quintanilla, H.J. Cleaves II, W.M. Irvine, D.L. Pinti, and M. Viso. Eds). 1745-1748, Springer, Heidelberg

17. K. Stedman Fusellovirus, Fuselloviridae. (2012) In The Springer Index of Viruses, Second Edition. Editors: C. Tidona and G. Darai. Springer Verlag, Heidelberg. DOI 10.1007/978-0-387-95919-1

16. K.M. Stedman (2011) Virus – Long Entry. In: Encyclopedia of Astrobiology (M. Gargaud, R. Amils, J. Cernicharo Quintanilla, H.J. Cleaves II, W.M. Irvine, D.L. Pinti, and M. Viso. Eds). 1745-1748, Springer, Heidelberg

15. K. M. Stedman.  (2008) The Fuselloviruses of Archaea.  In: Encyclopedia of Virology, Third Edition (B. W. J. Mahy and M.H.V. Van Regenmortel Eds). 296-300 Elsevier, Oxford.

14. K. M. Stedman. (2007) Plasmids and Cloning vectors for Thermophilic Archaea, In: Prokaryotes from Geothermal Environments: Biology and Technology (F. Robb, A. Driessen, G. Antranikian, D. Grogan Eds). Chapter 11.  CRC Press, Boca Raton.

13. K. M. Stedman, A. Clore and Y. Combet-Blanc. (2006) Biogeographical Diversity of Archaeal Viruses, In: SGM symposium 66: Prokaryotic diversity: mechanisms and significance (N. A. Logan, H.M. Pappin-Scott, and P.C.F. Oynston Eds). 131-144. Cambridge University Press, Cambridge.

12. K. M. Stedman, D. Prangishvili, and W. Zillig.  (2005) Viruses of Archaea, In: The Bacteriophages, 2nd Edition. (R. Calendar  Ed.), 499-516.  Oxford University Press, New York.

11. K. Stedman and B. S. Blumberg. The NASA Astrobiology Institute Virus Focus Group Workshop and Field trip to Mono and Mammoth Lakes, CA June 22-24, 2004. (2005) Astrobiology 5/4, 441-443

10. S. J.J. Brouns, T. J.G. Ettema, K. M. Stedman, J. Walther, H. Smidt, A. P.L. Snijders, M. Young, R. Bernander, P. C. Wright, B. Siebers, and J. van der Oost. The hyperthermophilic archaeon Sulfolobus - from exploration to exploitation. (2005) In:  Geothermal Biology and geochemistry in Yellowstone National Park: proceeding of the Thermal Biology Institute Workshop, Yellowstone National Park, WY, October 2003 (W.P. Inskeep and T.R. McDermott, Eds), 261-276.  Montana State University Publications, Bozeman, Montana.

9. Stedman, K., Prangishvili, D. and Zillig, W. (2005).  Lipothrixviridae.  In: Virus Taxonomy, VIIIth Report of the ICTV (C.M. Fauquet, M.A. Mayo, J. Maniloff, U. Desselberger, and L.A. Ball, eds), 95-102.  Elsevier/Academic Press, London.
 
8. Stedman, K. and Prangishvili, D. (2005).  Rudiviridae.  In: Virus Taxonomy, VIIIth Report of the ICTV (C.M. Fauquet, M.A. Mayo, J. Maniloff, U. Desselberger, and L.A. Ball, eds), 103-106.  Elsevier/Academic Press, London.

7. Stedman, K. (2005).  Fuselloviridae.  In: Virus Taxonomy, VIIIth Report of the ICTV (C.M. Fauquet, M.A. Mayo, J. Maniloff, U. Desselberger, and L.A. Ball, eds), 107-110.  Elsevier/Academic Press, London.

6. Stedman, K. (2005).  Guttaviridae.  In: Virus Taxonomy, VIIIth Report of the ICTV (C.M. Fauquet, M.A. Mayo, J. Maniloff, U. Desselberger, and L.A. Ball, eds), 115-116.  Elsevier/Academic Press, London.

5. J. C. Snyder, K. Stedman, G. Rice, B. Wiedenheft, , J. Spuhler, and M. J. Young. Viruses of Hyperthermophilic Archaea. (2003) Res. Microbiol 154 474-482.

4. K. Stedman and W. Zillig.  Genus: Fusellovirus. (2002) In The Springer Index of Viruses Editors: C. Tidona and G. Darai. Springer Verlag, Heidelberg. http://www.springer.de/viruses/.

3. D. Prangishvili, K.M. Stedman, and W. Zillig. Viruses of the extremely thermophilic archaeon  Sulfolobus. (2001) Trends in Microbiology 9/1, 39-43.

2. H. P. Arnold, K. M. Stedman, and W. Zillig. Archaeal phages. (1999) In The Encyclopedia of Virology, Second Edition. Editors: A. Granoff and R.G. Webster. Academic Press, London 76-89.

1. K. M. Stedman. Monomer-Monomer, Dimer-Dimer, and Protein-Protein Interactions of the Enhancer Binding Protein, NTRC.  (1996) Ph.D. Thesis, University of California, Berkeley.

• G.S. Diemer and K. M. Stedman. Comparative Viral Metagenomics of an Extreme Microbial Ecosystem, in preparation for PLoS One.
• R. Michael Ceballos, Caleb D. Marceau, Joshua O. Marceau, Coyne Drummond, and Kenneth M. Stedman. SSV-K1, a lytic Fusellovirus.
• K.Stedman and J. van der Oost.  Heterologous expression of genes from hyperthermophilic Archaea in hyperthermophilic Archaea.
• S. Morris, R. Diessner, S. Lee, and K. Stedman.  Stability of hyperthermophilic viruses: A mechanism for mobility.
• Sandes, M. Herrera, R. Diessner, and K. Stedman.  Sulfolobus mobilis, a new species of Sulfolobus with a hypermotile phenotype.

2013:

• K. Stedman “Novel RNA-DNA hybrid viruses from an acidic hot lake and elsewhere”. 12th International Thermophiles Meeting 8-13 September, Regensburg, Germany.
• K. Stedman.  “Viruses from high temperature acidic environments” XII Congresso Nacional de Virología (Spanish National Virology Congress),  9-12 June 2013, Burgos, Spain. (Invited Keynote Speaker).

2012:

• G.S. Diemer and K. Stedman, “A novel virus discovered in an extreme environment may provide a window into an ancient epoch of genomic evolution“ AbSciCon12. April 16 – 20, 2012, Atlanta, GA. USA.
• J.E. Kyle, L.L. Jahnke and K.M. Stedman “Changes in virus infectivity and virus and host lipids under silicifying conditions: Implications for virus biosignatures“ AbSciCon12. April 16 – 20, 2012, Atlanta, GA. USA.
• K.M. Stedman, J.R. Laidler, and S. L. Cady “Differential Deactivation, Reactivation and Dessication Tolerance of Silicified Viruses” AbSciCon12. April 16 – 20, 2012, Atlanta, GA. USA.

2011:

• E.Iverson and K.M. Stedman. Genetic and Biochemical Investigations of SSV1_VP2, a DNA Binding Protein from a Hyperthermophilic Archaeal Virus.  West Coast Bacterial Physiologists Annual Asilomar Meeting.  Dec. 9-11, 2011, Pacific Grove, CA, USA.
• K. M. Stedman, A. Capel, G. Diemer, B. Tuiasosopo, P. Siering, M. Wilson and G. Wolfe. Unique viruses from an Extreme Environment: The Boiling Springs Lake Metavirome. American Society for Microbiology, Northwest Branch Meeting.  18-19 Nov. 2011, Seattle, WA. USA.
• K. M. Stedman, A. Capel, G. Diemer, B. Tuiasosopo, P. Siering, M. Wilson and G. Wolfe.  “The Boiling Springs Lake Metavirome.” Thermophiles 2011, 11-16 Sept. 2011. Big Sky, MT. USA

2009:

• K. Stedman.  “Biogeography and Host Range of Fuselloviruses.” Gordon Research Conference on Archaea.  July 26-31, 2009 (Vice-chair).  Waterville Valley, NH. USA.

2008:

• Clore. and K. Stedman “Whole genome sequencing of extreme Fuselloviruses and their biogeography” AbSciCon08. April 15-17, 2008, Santa Clara, CA. USA.
• J. Laidler and K. Stedman “Silicification of Viruses in a Simulated Hydrothermal Environment “AbSciCon08. April 15-17, 2008, Santa Clara, CA. USA.

2007:

• Clore and K. Stedman “Integration characteristics of the Fuselloviridae; unique viruses of hyperthermophilic Archaea” American Society for Virology, 14-18 July, 2007, Corvallis, OR, USA.
• M. Herrera, A. Sandes, R. Diessner, and K. Stedman.  Genetic Characterization of a Novel Hypermotile Thermoacidophilic Archaeon. ASM-Northwest Branch Meeting.  March 9-11, 2007, Seattle Washington, USA.
• M. Herrera, A. Sandes, R. Diessner, and K. Stedman.  Physiological Characterization of a Novel Hypermotile Thermoacidophilic Archaeon. ASM-Northwest Branch Meeting.  March 9-11, 2007, Seattle Washington, USA.

2006:

• K.M. Stedman, A. Clore, Y. Combet-Blanc, A. Daugherty, R. Diessner, M. Lambert, and S. Morris. Diversity, Genomes, and Stability of Viruses of the Hyperthermophilic Archaeon Sulfolobus. International Conference on Extremophiles, 17-21 Sept. 2006. Brest, Brittany, France.
• K. Stedman.  Biogeographical Diversity of Archaeal Viruses.  158th Annual Meeting of The Society for General Microbiology.   April 3-6, 2006 University of Warwick, Coventry, England (Plenary session, Invited speaker)

2005:

• Clore and K. Stedman, "Integration and replication in the hyperthermophilic virus family Fuselloviridae”, West Coast Bacterial Physiologists Asilomar Conference. Dec. 16-18, 2005, Asilomar, CA, USA.
• K. Stedman. Viruses from Hell.  The  Northwest Mining Association  111th Annual Meeting. December 5-9, 2005 Spokane Washington (Invited)
• K. Stedman:  Diversity of Viruses of (Cren)archaeal Thermophiles.  The 9th International Congress of Bacteriology and Applied Microbiology, Joint meeting of the International Union of Microbiological Societies 2005. July 23-28, 2005 San Fransciso, California, USA.  (Invited, Session chair and organizer)
• Y.Combet-Blanc, S. Morris and K. M. Stedman. Genomes and Stability of the Fuselloviridae.  Archaea, The First Generation, June 2-4, 2005 Schloss Hohenkammer, Bavaria, Germany (Invited)
• K. Stedman, Viruses from Extreme Environments.  Goldschmidt 2005 May 20-25, 2005. Moscow Idaho, USA (Invited)

2004:

• K. Stedman, Y. Combet-Blanc, R. Diessner, J. Snyder, B. Wiedenheft, and, M. J. Young. Comparative Genomics and Diversity of Viruses of Extreme Archaeal Thermophiles.  American Society for Microbiology Conference on the New Phage Biology August 1 - 5, 2004 Key Biscayne, Florida, USA. 

• K. Stedman, Y. Combet-Blanc, B. Wiedenheft, A. Clore, G. Rice, J. Snyder, J. Spuhler, L. Zoeller, F. Roberto, M. J. Young, and W. Zillig. Genetics and Genomics of Fuselloviruses of hyperthermophilic Archaea.  Third Astrobiology Science Conference. March 28th – April 1st, 2004.  NASA-Ames, California, USA.
• M. J. Young, K. Stedman, B. Wiedenheft, J. Snyder, G. Rice, J. Spuhler, F. Roberto, L. Tang, T. Douglas, and J. E. Johnson. Viruses from Yellowstone’s high temperature acidic environments.  Third Astrobiology Science Conference. March 28th – April 1st, 2004. NASA-Ames, California, USA.

2003:

• S. Brouns, J. Walther, R. Bernander, K. Stedman, M. Young, B. Snijders, P. Wright, J. van der Oost. The hyperthermophilic archaeon Sulfolobus - from exploration to exploitation.  First Biannual Workshop on Geothermal Biology and Geochemistry in Yellowstone National Park, October 9-11, 2003. Yellowstone National Park, Wyoming, USA.
• K. Stedman, and E. Barklis.  Extremophiles and their Viruses in Nanotechnology.  Nanoscale Science and Technology Workshop, 2003.  Sept. 22-23, 2003.  Seattle, Washington, U.S.A.

• A.J. Clore, and K. Stedman. Exploring the Replicative Cycle of SSV1, a Virus of the Archaeon Sulfolobus shibatae. 15th Evergreen International Phage Meeting, Evergreen State College, July 23-27, 2003, Olympia, Washington, U.S.A.

• Wiedenheft,  K. Stedman, F. Roberto, D. Willits, A. Gleske, and M. Young. Comparative Genomic Analysis of the Hyperthermophilic  Archaeal SSV Virus. American Society for Virology, Annual Meeting, June 12-17, 2003.  Davis, California, U.S.A.
• G. Rice, L. Tang, J. Spuhler, K. Stedman, J. E. Johnson, and M. Young. Structure and Characterization of a New High Temperature Virus. American Society for Virology, Annual Meeting, June 12-17, 2003.  Davis, California, U.S.A.

2002:

• K. Stedman, G. Rice, J. Snyder, B. Wiedenheft, M. Young, and W. Zillig, Novel Viruses from Extreme Environments .(Invited talk)  Second Astrobiology Science Conference, April 7-11, 2002. NASA Ames Research Center, U.S.A.

2001:

• Ken Stedman, B. Wiedenheft, R. A. Garrett, F. Roberto, M. Young, and W. Zillig, Comparative genomics of Sulfolobus viruses. West Coast Bacterial Physiologists Annual Asilomar Meeting, Dec. 14-16 2001, Asilomar, California, USA.
• K. Stedman. Sulfolobus viral biodiversity.  Gordon Conference on Archaea: Ecology, Metabolism and Molecular Biology . August 5-10, 2001, Proctor Academy, Andover, New Hampshire, U.S.A.

2000:

• H.P. Arnold, E. Bonch-Osmolovskaya, R. Garrett, H. Phan, J.K. Kristjansson, E. Redfield, G. Rice, F. Robb, Q. She, J. Snyder, K. M. Stedman, B. Wiedenheft, M. Young, and W. Zillig. Biodiversity in Fuselloviruses from Japan, Iceland, Yellowstone USA, and Kamchatka, Russia.West Coast Bacterial Physiologists Annual Asilomar Meeting, Dec. 15-18 2000, Asilomar, California, USA.
• K. Stedman, E. Martusewitsch, C. Schleper, J. van der Oost, and W. Zillig.  Advances in Molecular Genetics of Sulfolobus solfataricus. Extremophiles. Sept. 3-7, 2000. Hamburg Germany.

• K. Stedman, E. Martusewitsch, W. Zillig, and C. Schleper. Transformation of Sulfolobus solfataricus with viral vectors. Kamchatka 2000: Enzymology, Molecular Biology and Biogeochemistry of Thermophiles . August 6-12, 2000, Petropavlovsk-Kamchatsky, Russia
• K. Stedman, R.A. Garrett, and W. Zillig. Was S. solfataricus infected with an SSV?  Did SSV steal some genes from the S. solfataricus genome?  Workshop on the Origin and Evolution of viruses. July 25-27, 2000 Fondation des Treilles , France
• K. Stedman. H.P. Arnold, D. Prangishvili, E. Redfield, G. Rice, J. Snyder, H. Phan, Q. She, R. A. Garrett, M. Young and W. Zillig. SSV from Yellowstone, Iceland and Japan: SSVs are everywhere. Workshop on the Origin and Evolution of viruses. July 25-27, 2000 Fondation des Treilles , France

1990s

• K. Stedman, H.P. Arnold, I.Holz, D. Prangishvili, and W. Zillig. Novel Archaeal Viruses: Collection, Characterization and Utilization. West Coast Bacterial Physiologists Annual Asilomar Meeting, Dec. 17-19 1999, Asilomar, California, USA.
• K. Stedman, E. Martusewitsch, C. Schleper, E. Stieger, and W. Zillig.  Genetic Engineering in the Extremely Thermophilic Archaeon Sulfolobus solfataricus.  Third Meeting on Extremophiles as Cell Factories. June 3-6, 1999, Graz, Austria.
• K. Stedman, Q. She, I. Holz, D. Prangishvili, H. Singh, R. A. Garrett, and W. Zillig.  Conjugation in Archaea: New Twists on an Old Theme.  Vereinigung für Allgemeine und Angewante Mikrobiologie, annual meeting, March 7-10, 1999, Göttingen, Germany.
• K. Stedman, Q. She, I. Holz, D. Prangishvili, H. Singh, R. A. Garrett, and W. Zillig.  Conjugation in Archaea: New Twists on an Old Theme.  West Coast Bacterial Physiologists Annual Asilomar Meeting, December 18-20, 1998, Asilomar, California, U.S.A.
• K. Stedman, C. Schleper, I. Holz, W. Zillig, H. Phan, Q. She, and R.A. Garrett.  A viral transforming vector for Sulfolobus solfataricus and insights from conjugative plasmid sequences.  Second Workshop on vector development for Extremophiles, November 8-10, 1998, Gif sur Yvette, France.
• K. Stedman, C. Schleper, and W. Zillig. Recombinant Fuselloviruses as High Copy Number Vectors for the Extremely Thermophilic Archaeon Sulfolobus solfataricus. Thermophiles 98, September 6-11, 1998, Brest, France.
• Arnold, H.P., Holz, I., Prangishvili, D.,Rumpf, E., Schleper, C., Schweier, P.A., Stedman, K., and W. Zillig.  Molecular Genetic Tools for the Extremely Thermophilic Archaeon Sulfolobus. Second Meeting on Extremophiles as Cell Factories.  April 17-21, 1998.  Dublin Ireland. (Plenary Oral Presentation).
• K. Stedman, C. Schleper, and W. Zillig.  A shuttle vector for the extremely thermophilic archaeon Sulfolobus solfataricus and E.coli..  Vereinigung für Allgemeine und Angewandte Mikrobiologie. March 22-25, 1998 Frankfurt, Germany.
• Stedman, K., Schleper, C., Arnold, H.-P., Holz, I., Rumpf, E., and Zillig, W. Vector Development for Extremely Thermophilic Archaea: West Coast Bacterial Physiologists Annual Asilomar Meeting December 19-21, 1997, Asilomar, California, U.S.A.

• Stedman, K., Arnold, H.-P., Holz, I., Rumpf, E., and Zillig, W. Developments using SSV1 as a vector system.  Workshop on vector development for Extremophiles, October 3-5, 1997.  Naples, Italy.

2013:
• N. Ekbukichi, and K.M. Stedman. Characterization of the RNA-DNA Hybrid Virus Capsid Protein, The 21st Annual McNair/EIP/GO-MAP Research Conference , May 16 - 18, 2013 , UW Seattle, USA.
• K. M. Stedman, J. Filip, G. S. Diemer. A novel mechanism for RNA-DNA recombination in virus evolution. American Society for Microbiology General Meeting. May 18-21, 2013 Denver, CO, USA.

2012:
• A.O. Nichols, C. Drummond, K. Stedman, and M. Ceballos. “Host-dependent differences in replication strategy of the Sulfolobus Spindle-shaped Virus strain SSVK1: Lytic replication in allopatric hosts”. AbSciCon12. April 16 – 20, 2012, Atlanta, GA. USA.
• J.E. Kyle, K. Stedman, and L. Jahnke “Lipid profile of a saline, alkaline lake (with a viral twist?)” AbSciCon12. April 16 – 20, 2012, Atlanta, GA. USA.
• K.M. Stedman, P.L. Siering, M.S.Wilson, G.S.Wolfe, B. Tuiasosopo, and G.S. Diemer. “Macrohomogenitiy and Microheterogeneity in an Acidic Hot Lake” AbSciCon12. April 16 – 20, 2012, Atlanta, GA. USA.
• Jennifer Kyle, Linda Jahnke, and Kenneth M. Stedman. Preservation Potential of Lipid-containing Viruses under Silicifying Conditions. 43rd Lunar and Planetary Science Conference, (19-23 March, 2012, Woodlands Texas.)

2011:
• Kenneth M. Stedman, Aric Capel, Geoff Diemer, Jennifer Kyle, Brownie Tuiasosopo, Patricia Siering, Mark Wilson, and Gordon Wolfe. The Boiling Springs Lake Metavirome. Aquatic Virus Workshop 6, 30 Oct. – 3 Nov. 2011, Texel, The Netherlands.
• Geoffrey S. Diemer, Maria Hamilton, Jennifer Kuo, and Kenneth M. Stedman. Unique Microviruses in an Acidic Hot Lake, Thermophiles, 2011. Sept. 11-16, 2011. Big Sky, MT, USA.
• Eric Iverson and Kenneth M. Stedman. SSV1 mutagenesis and characterization of the putative packaging protein VP2. Thermophiles, 2011. Sept. 11-16, 2011. Big Sky, MT, USA.
• Mikaela Selby, Marc Morais, and Kenneth M. Stedman. Structure and Assembly of the Archaeal Virus SSV-1. Thermophiles, 2011. Sept. 11-16, 2011. Big Sky, MT, USA.

2010:
• Gordon V. Wolfe, Russell Shapiro, Patricia Siering, Mark Wilson, Ken Stedman, Jennifer Kyle, and Faryar Etesami. Revealing the Hidden Environments of an Acidic Geothermal Lake Using Sonar Bathymetry, High-Resolution GPS Mapping, and Time-Lapse Photography. ISME 2010. Aug 22-27, 2010. Seattle, WA, USA.
• Jennifer E. Kyle, Geoff Diemer, and Kenneth M. Stedman. A Replacement for Anodisc 0.02μm Filter Membranes, ISME 2010. Aug 22-27, 2010. Seattle, WA, USA.
• Coyne Drummond and Kenneth M. Stedman. Characterization of Sulfolobus Spindle-shaped Virus 1 Replication, ISME 2010. Aug 22-27, 2010. Seattle, WA, USA.
• Geoffrey S. Diemer and Kenneth M. Stedman. Metaviromics of an Extreme Environment, ISME 2010. Aug 22-27, 2010. Seattle, WA, USA.
• Geoffrey Diemer and Kenneth Stedman. A Metavirome of an Extreme Microbial Environment. Viruses of Microbes, June 21-25, 2010. Paris, France.
• Geoffrey S. Diemer, Jennifer Kyle, and Kenneth M. Stedman Astrovirology: Viral Diversity and Ecology in Extreme Environments. AbSciCon2010. April 26-29, 2010, League City, TX, USA.

2009:
• Caleb Marceau, Michael Ceballos, and Kenneth Stedman, Astonishing host range variation in the hyperthermophilic Fusellovirus family. ASV 2009. July 11-15, 2009, Vancouver, British Columbia, Canada.

2008:
• Caleb Marceau, Kayleigh Blair, Blake Wombold. Rachael Marie Ceballos, Michael Ceballos, Kenneth Stedman Sulfolobus Spindle-shaped Viruses and Host Cross-Infection Studies. AbSciCon08. April 15-17, 2008, Santa Clara, CA. USA.

2007:
• Maria Herrera, Adam Sandes, Random Diessner, and Kenneth Stedman. A Novel Hypermotile Thermoacidophilic Archaeon: Reclassification of the Sulfolobales? . Gordon Conference on Archaea: August 19-24, 2007 Andover, New Hampshire,. USA.
• M. Herrera, A. Sandes, R. Diessner, and K. Stedman. Characterization of a Novel Hypermotile Thermoacidophilic Archaeon. ASM-Northwest Branch Meeting. March 9-11, 2007, Seattle Washington, USA. Won poster presentation award.

2006:
• K. Stedman, A. Clore, Y. Combet-Blanc, R. Diessner, M. Lambert, S. Morris. Diversity, Genomes, and Stability of Viruses of the hyperthermophilic archaeaon Sulfolobus. ASM-Northwest Branch Meeting. March 10-12, 2006, Seattle Washington, USA.

2005:
• A. Clore and K. Stedman. Genetic Studies on the Viral Integrase from SSV1. Gordon Conference on Archaea: August 14-18, 2005 Magdalene College, Oxford, UK.
• K. Stedman, A. Clore, G. Rice, J. Snyder, J. Spuhler, L. Tang, J.E. Johnson, M. Young. Novel Viruses from Yellowstone and Lassen Volcanic National Parks. The 13th International Congress of Virology, Joint meeting of the International Union of Microbiological Societies 2005. July 23-28, 2005 San Fransciso, California, USA.
• K. Stedman and B. Blumberg. The NAI-Virus Focus Group. NAI 2005, April 10-14, 2005 Boulder, Colorado, USA.
• K. Stedman, G. Rice, L.Tang, J. E. Johnson and M. Young. Ancient Viruses from Extreme Environments?. NAI 2005, April 10-14, 2005 Boulder, Colorado, USA.

2004:
• Clore, and K. Stedman. Functions of Cryptic Viral ORFs in Fuselloviridae. Extremophiles 2004: 5th International Conference on Extremophiles, September 19-23, 2004, Cambridge Maryland, USA.
• M. Young, L. Tang, J. Snyder, K. Stedman, F. Roberto, T. Douglas, and J. E. Johnson. Archaeal Viruses from High Temperature Environments. Extremophiles 2004: 5th International Conference on Extremophiles, September 19-23, 2004, Cambridge Maryland, USA.
• Y. Combet-Blanc, B. Wiedenheft, M. Young, W. Zillig, and K. Stedman. Comparative Genomics and Diversity of Viruses of Extreme Archaeal Thermophiles. Extremophiles 2004: 5th International Conference on Extremophiles, September 19-23, 2004, Cambridge Maryland, USA.
• K. Stedman, Y. Combet-Blanc, R. Diessner, J. Snyder, B. Wiedenheft, and, M. J. Young. Comparative Genomics and Diversity of Viruses of Extreme Archaeal Thermophiles. American Society for Microbiology Conference on the New Phage Biology August 1 - 5, 2004 Key Biscayne, Florida, USA.
• K. Stedman, G. Rice, L. Tang, J. E. Johnson, and M. Young. STIV; Indications for ancestral icosahedral viruses. American Society for Microbiology Conference on the New Phage Biology August 1 - 5, 2004 Key Biscayne, Florida, USA.

2003:
• J. C. Snyder, J. Spuhler, B. Wiedenheft, D. Mogk, K. M. Stedman, F. Roberto, T. Douglas, and M. Young. Monitoring Viral Diversity and Changing Population Structure in Response to Changing Geochemistry and Time in Yellowstone National Park. First Biannual Workshop on Geothermal Biology and Geochemistry in Yellowstone National Park, October 9-11, 2003.
• G. Rice, L. Tang, K. M. Stedman, F. Roberto, J. Spuhler, J.E. Johnson, T. Douglas and M. Young. The structure of a thermophilic archaeal virus shows that a ds DNA viral capsid type spans all domains of life. First Biannual Workshop on Geothermal Biology and Geochemistry in Yellowstone National Park, October 9-11, 2003.
• K. Stedman, A. Gleske, P. Kraft, A. Oeckinghaus, D. Kuemmel, M. Lawrence, G. Rice, F. Roberto, G. Sellek, J. Snyder, J. Spuhler, B. Wiedenheft, D. Willits, M. Young, L. Tang, J. E. Johnson, and W. Zillig. Advances in the study of viruses from thermophilic Archaea: Gordon conference on Archaea. August 3-8, 2003 Andover, New Hampshire, U.S.A.
• K. Stedman, Y. Combet-Blanc, L. Zoeller, Q. She, R. Garrett, G. Rice, B.Wiedenheft, M. Young, F. Roberto, W. Zillig. Comparative genomics of Sulfolobus viruses from Japan, Iceland, the U.S.A. and Russia. Extremophiles 2002, September 22-26, 2002 Naples, Italy.

2002:
• G. Rice, L. Tang, K. M. Stedman, J.E. Johnson, and M. Young. Novel viruses from High Temperature Thermal Environments in Yellowstone National Park. FASEB meeting on Viral Assembly. June 22-27, 2002. Saxons River Vermont, U.S.A.
• M. Jonuscheit, K. Stedman, E. Martusewitsch and C. Schleper. Development of a vector for high-level expression of proteins in the hyperthermophile Sulfolobus solfataricus. Extremophiles 2002, September 22-26, 2002. Naples, Italy
• G. Rice, L. Tang, K. M. Stedman, J.E. Johnson, and M. Young. Novel viruses from High Temperature Thermal Environments in Yellowstone National Park. Extremophiles 2002, September 22-26, 2002. Naples, Italy

1999:
• K.M. Stedman, E. Martusewisch, C. Schleper, and W. Zillig. Transformation of the extremely thermophilic Crenarchaeote S.solfataricus with viral vectors: Mutant complementation. Gordon Conference on Archaea, August 1-6, 1999 Andover, U.S.A.
• K. M. Stedman, Q. She, I. Holz, D. Prangishvili, H. Singh, R. A. Garrett. and W. Zillig. Conjugation in the Extremely Thermophilic Archaeon Sulfolobus: Plasmid Conservation and Variation. American Society for Microbiology 99th General Meeting, May 30-June 3, 1999, Chicago, U.S.A.
• K. Stedman, C. Schleper, E. Rumpf, and W. Zillig. Transformation in Extreme Thermophiles: A High Copy Number, Integrating Shuttle Vector for Sulfolobus solfataricus. Keystone Symposia on Archaea: Bridging the Gap between Bacteria and Eukarya, January 9-14, 1999, Taos, U.S.A.

1998:
• K. Stedman, C. Schleper, E. Rumpf, and W. Zillig. The Archaeal Virus SSV1: Genetic Determinants of Viral Function. Cold Spring Harbor Meeting on Molecular Genetics of Bacteria and Phages. August 25-30, 1998. Cold Spring Harbor, U.S.A.
• K. Stedman, C. Schleper, H.-P. Arnold, I. Holz, E. Rumpf, W. Zillig.
Vector Development for Thermophilic Archaea. Extremophiles '98. Jan 18-22, 1998. Yokohama, Japan.
1997:
• H.-P. Arnold, I. Holz, J. Kristiansson, D. Prangishvili, A. Schweier, K. Stedman and W. Zillig. Genetic Tools for the Extremely Thermophilic Archeaon Sulfolobus. First Meeting on Extremophiles as Cell Factories. April 19-21, 1997. Athens, Greece.
1994:
• K. Stedman, A. K. North, K. Klose and S. Kustu. Dimerization of the Enhancer Binding Protein NTRC, Another Function for the C-terminus. Keystone Symposium; Basic Aspects of Transcription, Feb. 13-20, 1994. Keystone, Colorado, U.S.A.
1993:
• K. Stedman, A. K. North K. Klose, and S. Kustu. Structural Aspects of the C-terminal Domain of NTRC. F.A.S.E.B. meeting; Control of Transcription Initiation in Prokaryotes, Aug. 1-4, 1993. Saxton's River, Vermont, U.S.A.
1989:
• K. M. Stedman, N. R. Movva, M. Zurini, P. Hiestand R. Keller. K. Memmert, S. Valente, R. Wenger and H. P. Kocher. One Step Affinity Purification of Highly Expressed Recombinant Human Cyclophilin (Peptidyl-Prolyl cis-trans isomerase). First Conference on Advances in Purification of Recombinant Proteins, March 14-17, 1989. Interlaken, Switzerland.

2014:

• University of Florida. Department of Microbiology and Cell Science, 17 March 2014.

2013:

• Viruses from Hell.  Thermal Biology Institute, Montana State University. 5 Nov. 2013
• Viruses from Hell. Department of Biochemistry and Molecular Biology, OHSU.  15 Oct. 2013
• Invited participant in American Academy of Microbiology Colloquium, “The Uncharted Viral World”.  July 11-12 San Francisco, CA, USA.

• Viruses from Hell.  Department of Therapeutic Sciences and Bioengineering, University of California, San Francisco, 10 June 2013
• Viruses from Hell.  Centro Severo Ochoa, Autonomous University of Madrid. 13 June 2013. 
• Viruses from Hell (and beyond).  Spanish Center for Astrobiology, Madrid Spain. 14 June, 2013.
• Viruses from Hell : Unusual Viruses from Extreme and other) environments. Cornell University, Microbiology Department. 14 March, 2013
• Viruses from Hell (and Beyond) : A Primer on Astrovirology. Canadian Astrobiology Training Program. 30 Jan 2013 (Recorded on the WWW)

2011:

• Viruses from Hell, Part II, Metaviromics, Extreme Mutant Viruses, and Virus Fossils.  Sonderkolloquium Biologischen Kolloquiums Christian-Albrechts-Universität zu Kiel, 14 June 2011.
• Viruses from Hell: RZBB-Kolloquium, Faculty of Biology and Preclinical Medicine, Department of Microbiology, Universität Regensburg, 19 May 2011
• Viruses from Hell: Max Planck Institute for Terrestrial Microbiology, 14 March 2011.
• The news from Mono Lake, where the conditions are extreme, the researchers are opinionated and the microbes are all above average.  The Maseeh Mathematics and Statistics Colloquium Series. PSU http://www.mth.pdx.edu/events/colloquium.asp?id=263. 7 Jan 2011.

2010:

• Quo vadis Astrovirology?  NASA Astrobiology Institute Director’s Seminar.  (Presented Online) 25 Oct. 2010.
• Viruses from Hell : Unique Viruses from Extreme Environments. Sealy Center for Structural Biology and Molecular Biophysics.  University of Texas Medical Branch, Galveston, Texas. 30 April, 2010

2009:

• Viruses from Hell : Viruses of the extreme thermoacidophile Sulfolobus. Biology Department, Copenhagen University, Denmark. 11 May, 2009
• Viruses from Hell : From Portland to Kiel, Biologisches Kolloquium, Christian-Albrechts Universität zu Kiel,  Germany. 27 April, 2009. 

2008:

• Invited to present to the National Academy of Sciences, Space Studies Board, Committee on the Origins and Evolution of Life.  28 Oct. 2008.
• Viruses from Hell: Genetics and Genomics of Sulfolobus viruses. Institut für Algemeine Mikrobiologie, Christian-Albrechts Universität zu Kiel, Germany. 29 April, 2008
• Viruses from Hell: Molecular Tools to Study Sulfolobus Transcription. Biozentrum Klein Flottbeck, Universität Hamburg, 28 April, 2008.
• Viruses from Hell: Finding, Characterizing and Modifying Extreme Viruses. OHSU/OGI, Department of Environmental and Biomolecular Systems. 11 April 2008

2006:

• Salish-Kootenai College, Pablo Montana, 8 December, 2006.
•  “Viruses from Hell” PSU Geology Department, 29 November, 2006

2005:

• “Viruses from Hell” Novartis Institutes for Biomedical Research Basel.  Switzerland 23 August, 2005
• “Viruses from Hell” University of California, Irvine.  6 May, 2005
• “Viruses from Hell” California State University, Chico. 22 April, 2005
• “Viruses from Hell”  BHP-Billiton Johannesburg Technology Center.  South Africa. 17 March, 2005  (Part of 2 week visit as “visiting scholar”.)

2004:

• “Viruses from Hell” Washington State University, Vancouver. 15 November, 2004.
• “Hot Viruses in the Hood”, Portland State University, Biology Department, 21 October, 2004
• "Viruses from Hell: Genetics, Genomics and Evolution". Keynote Speaker, UC-Berkeley 5th Annual Interdepartmental Student Microbiology Symposium Saturday, 10 April, 2004. (invited by students).  Previous speakers include: Susan Goldman, Bonnie Bassler, Rich Lenski, Gary Schoolnik

2003:

• “Viruses from Hell” Biology Department, Reed College, 31 October 2003
• “Viruses from Hell, Bumpass Hell” Biology Department Humboldt State University, 26 September, 2003 (invited by students).
• “Life in Boiling Acid: Extreme Viruses” Apprenticeships in Science and Engineering (High school students) Midsummer Conference. Oregon State University, 11 July, 2003.
• "Hot Viruses: Genetic Elements of Sulfolobus" Molecular Microbiology and Immunology Department, Oregon Health Sciences University, 27 May, 2003

2002:

• "Hot Viruses: Genetic Elements of Sulfolobus" Molecular Biology and Microbiology Department, Oregon Graduate Institute, Oregon Health Sciences University, 22 November, 2002
• “A Molecular Biology Primer”, Guest lecture in Mathematics 607, Seminar in Computational Biology.  Mathematics Department, Portland State University. 15 April 2002
• “Life in Boiling Acid: Viruses of Sulfolobus” Chemistry Department, Portland State University, 10 May 2002
• “Hot Viruses: Genetic elements of Sulfolobus “BIOLab, Biology Interactive Outreach Spring Symposium, Portland State University, 6 April 2002

2001:

• New England Biolabs, Boston, U.S.A. August 2001
• ATCC Workshop on Extremophiles, Baltimore, U.S.A. July 2001

2000:

• ATCC Workshop on Extremophiles, Baltimore, U.S.A. July 2000
• Biology Department, Portland State University, U.S.A. May 2000
• Groningen University, The Netherlands.  April 2000

1990s:

• Free University of Brussels, Belgium. November 1999
• Montana State University, U.S.A. July 1999
• Max Planck Institut für Molekulare Genetik, Berlin, Germany. April, 1999
• The University of Denver, U.S.A. January, 1999
• Universität Regensburg, Germany. December, 1998
• University of Paris, XI, Orsay, France. November, 1998
• University of Naples, Frederico II, Italy.  27 October, 1998
• Genetics Elements of Sulfolobus: Viruses and Plasmids
• University of Rome, La Sapienza, Italy.  October, 1998
• Consiglio Nazionale delle Ricerche, Naples, Italy. October, 1998
• Genetic Elements of thermophilic Archaea: Plasmis, Viruses and Transposons
• Center of Marine Biosciences, Baltimore, U.S.A. August, 1998
• Wageningen Agricultural University, The Netherlands.  June, 1998
• Philipps University, Marburg, Germany.  March, 1998
• Korea Research Institute for Biotechnology and Biosciences, Yusong, Korea. February, 1998

• University of California, Davis, U.S.A. January, 1998