Affiliation: | 1. Department of Microbiology, Cornell University, Wing Hall 403, Ithaca, NY 14853, USA.;2. Department of Ocean Sciences, University of California Santa Cruz, CA, USA.;3. Department of Marine Science, University of Georgia, Athens, GA, USA.;4. Present address: Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, USA.;5. School of Biology, Georgia Institute of Technology, Atlanta, GA, USA. |