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Book Chapter
H. W. Jannasch and Wirsen, C. O., The biochemical versatility of chemosynthetic bacteria at deep sea hydrothermal vents, in Hydrothermal vents of the Eastern Pacific: An overview, M. L. Jones, Ed. Vienna, Va.: INFAX, 1985, pp. 325–334.
H. W. Jannasch, Wirsen, C. O., and Hoaki, T., Isolation and cultivation of heterotrophic hyperthermophiles from deepsea hydrothermal vents, in Archaea: a laboratory manual, F. T. Robb, Ed. Plainview, N.Y.: Cold Spring Harbor Laboratory Press, 1995, pp. 9–13.
C. O. Wirsen and Jannasch, H. W., Microbial degradation of a starch-based biopolymer in the marine environment, in Fundamentals of Biodegradable Materials and Packaging, D. Kaplan, Ed. Lancaster, Penn.: Technomic Publishing, 1993, pp. 297–310.
H. W. Jannasch and Wirsen, C. O., Microbiology of the deep sea, in Deep-Sea Biology, G. T. Rowe, Ed. New York, N.Y.: Wiley, 1983, pp. 231–259.
C. O. Wirsen, Hoaki, T., Maruyama, T., and Jannasch, H. W., Physiological studies on a hyperthermophilic archea from a Guaymas Basin hydrothermal vent, in Short Communications of the 1991 International Marine Biotechnology Conference, IMBC '91, vol. 1, C. C. Nash, Ed. Dubuque, Iowa: W. C. Brown, 1992, pp. 36–38.
H. W. Jannasch and Wirsen, C. O., Studies on the microbial turnover of organic substances in deep sea sediments, in Biogeochimie de la Matiere Organique a l'Interface Eau-Sediment Marin: Marseille 25-27 Avril 1979, vol. 293, R. Daumas, Ed. Paris, France: Centre National de la Recherche Scientifique, 1980, pp. 289–290.
Journal Article
C. O. Wirsen, Tuttle, J. H., and Jannasch, H. W., Activities of sulfur-oxidizing bacteria at the 21 degrees N East Pacific Rise vent site, Marine Biology, vol. 92, pp. 449–456, 1986.
H. W. Jannasch and Wirsen, C. O., Alvin and the sandwich, Oceanus, vol. 16, pp. 20–22, 1972.
T. Hoaki, Wirsen, C. O., Hanzawa, S., Maruyama, T., and Jannasch, H. W., Amino acid requirements of two hyperthermophilic Archaeal isolates from deep sea vents: Desulfurococcus strain SY and Pyrococcus strain GB-D, Applied and Environmental Microbiology, vol. 59, pp. 610–613, 1993.
H. W. Jannasch, Cuhel, R. L., Wirsen, C. O., and Taylor, C. D., An approach for in situ studies of deep-sea amphipods and their microbial gut flora, Deep-Sea Research. Part A, Oceanographic Research Papers, vol. 27, pp. 867–872, 1980.
H. W. Jannasch, Wirsen, C. O., and Winget, C. L., A bacteriological pressure-retaining deep-sea sampler and culture vessel, Deep-Sea Research and Oceanographic Abstracts, vol. 20, pp. 661–664, 1973.
D. C. Nelson, Wirsen, C. O., and Jannasch, H. W., Characterization of large, autotrophic Beggiatoa spp. abundant at hydrothermal vents of the Guaymas Basin, Applied and Environmental Microbiology, vol. 55, pp. 2909–2917, 1989.
C. O. Wirsen, Jannasch, H. W., and Molyneaux, S. J., Chemosynthetic microbial activity at Mid-Atlantic Ridge hydrothermal vent sites, Journal of Geophysical Research, vol. 98, pp. 9693–9703, 1993.
H. W. Jannasch and Wirsen, C. O., Chemosynthetic primary production at East Pacific sea floor spreading centers, BioScience, vol. 29, pp. 592–598, 1979.
H. W. Jannasch, Wirsen, C. O., Molyneaux, S. J., and Langworthy, T. A., Comparative physiological studies on hyperthermophilic Archaea isolated from deep sea hot vents with emphasis on Pyrococcus Strain GB-D, Applied and Environmental Microbiology, vol. 58, pp. 3472–3481, 1992.
C. O. Wirsen and Jannasch, H. W., Decomposition of solid organic materials in the deep sea, Environmental Science and Technology, vol. 10, pp. 880–886, 1976.
H. W. Jannasch and Wirsen, C. O., Deep-sea microorganisms: In situ response to nutrient enrichment, Science, vol. 180, pp. 641–643, 1973.
D. M. Karl, Wirsen, C. O., and Jannasch, H. W., Deep-sea primary production at the Galapagos hydrothermal vents, Science, vol. 207, pp. 1345–1347, 1980.
C. M. Cavanaugh, Wirsen, C. O., and Jannasch, H. W., Evidence for methylotrophic symbionts in a hydrothermal vent mussel (Bivalvia Mytilidae) from the Mid-Atlantic Ridge, Applied and Environmental Microbiology, vol. 58, pp. 3799–3803, 1992.
H. W. Jannasch, Wirsen, C. O., Molyneaux, S. J., and Langworthy, T. A., Extremely thermophilic fermentative archaebacteria of the genus Desulfurococcus from deep-sea hydrothermal vents, Applied and Environmental Microbiology, vol. 54, pp. 1203–1209, 1988.
C. O. Wirsen, Is life thriving deep beneath the seafloor? Recent discoveries hint at a potentially huge and diverse subsurface biosphere, Oceanus, vol. 42, pp. 72–77, 2004.
H. W. Jannasch, Nelson, D. C., and Wirsen, C. O., Massive natural occurrence of unusually large bacteria (Beggiatoa sp.) at a hydrothermal deep-sea vent site, Nature, vol. 342, pp. 834–836, 1989.
J. H. Tuttle, Wirsen, C. O., and Jannasch, H. W., Microbial activities in the emitted hydrothermal waters of the Galapagos Rift vents, Marine Biology, vol. 73, pp. 293–299, 1983.
H. W. Jannasch, Eimhjellen, K., Wirsen, C. O., and Farmanfarmaian, A., Microbial degradation of organic matter in the deep sea, Science, vol. 171, pp. 672–675, 1971.
H. W. Jannasch and Wirsen, C. O., Microbial life in the deep sea, Scientific American, vol. 236, pp. 42–52, 1977.

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