John K. Freytag, Ph.D.
Affiliations: | Pennsylvania State University, State College, PA, United States |
Area:
Autotrophic symbioses, Hydrothermal Vents, Methane SeepsGoogle:
"John Freytag"Parents
Sign in to add mentor| Charles R. Fisher | grad student | 2003 | Penn State | |
| (Ecological physiology and biochemistry of sulfide acquisition by two hydrocarbon seep vestimentiferans, Lamellibrachia luymesi and Seepiophila jonesi.) | ||||
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| Flores JF, Fisher CR, Carney SL, et al. (2005) Sulfide binding is mediated by zinc ions discovered in the crystal structure of a hydrothermal vent tubeworm hemoglobin. Proceedings of the National Academy of Sciences of the United States of America. 102: 2713-8 |
| Girguis PR, Childress JJ, Freytag JK, et al. (2002) Effects of metabolite uptake on proton-equivalent elimination by two species of deep-sea vestimentiferan tubeworm, Riftia pachyptila and Lamellibrachia cf luymesi: proton elimination is a necessary adaptation to sulfide-oxidizing chemoautotrophic symbionts. The Journal of Experimental Biology. 205: 3055-66 |
| Freytag JK, Girguis PR, Bergquist DC, et al. (2001) A paradox resolved: sulfide acquisition by roots of seep tubeworms sustains net chemoautotrophy. Proceedings of the National Academy of Sciences of the United States of America. 98: 13408-13 |
| Fisher C, Freytag J, Flores J, et al. (2000) Extreme adaptations for life with sulfide Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology. 126: S35 |