Edward F. DeLong
Professor of Oceanography
- Ph.D. 1986 Ė Marine Biology, Scripps Institution of Oceanography, U.C. San Diego
- B.S. 1982 Ė Bacteriology, University of California, Davis
Our lab is interested in applying contemporary genomic technologies to understand the ecology, evolution and biogeochemistry of complex microbial assemblages. While biotic processes that occur within natural microbial communities are diverse and complex, much of this complexity is encoded in the nature, identity, structure, and dynamics of interacting genomes in situ. This genomic information can now be rapidly and generically extracted from the genomes of co-occurring microbes in natural habitats, using standard genomic technologies. We are now developing and applying these and related technologies, to better describe and explore the genomics, biochemistry, metabolism and ecology of marine microbial communities. Our central focus is on marine systems, due to the fundamental importance of the ocean environment, and the pressing need to understand the function and trajectory of global ecosystems in the Anthropocene.
Current Research Projects:
- High resolution temporal dynamics of microbial communities in situ, using robotic underwater sampling, RNA sequencing, and gene expression analyses
- Four dimensional spatio-temporal mapping of planktonic marine microbial genes, genomes, transcriptomes and taxa
- Microbial community structure and function on sinking particles in the oceanís interior
- The biochemistry, biogeochemistry and ecology of high molecular weight dissolved organic matter degradation in the open ocean
- The distribution and functional diversity of opsin-mediated, light-driven energy generation in marine bacteria
E. A. Ottesen, C.R. Young, S. M. Gifford, J. M. Eppley, R. Marin III, S. C. Schuster, C.A. Scholin and E. F. DeLong. 2014. Multispecies diel transcriptional oscillations in open ocean heterotrophic bacterial assemblages. Science 345: 207-212.
Sara A. Lincoln, B. Wai, J. M. Eppley, M. J. Church, R. E. Summons, E.F. DeLong. 2014. Planktonic Euryarchaeota are a significant source of archaeal tetraether lipids in the ocean. Proc, Natl. Acad. Sci. USA, 111:9858-63.
Ottesen E.A., Young C.R., Eppley J.M., Ryan J.P., Chavez F.P., Scholin C.A., DeLong
E.F. 2013. Pattern and synchrony of gene expression among sympatric marine microbial populations. Proc Natl Acad Sci U.S.A. 110:E488-97
J. A. Bryant, F. J. Stewart, J. M. Eppley and E. F. Delong. 2012. Microbial community phylogenetic and trait diversity declines steeply with depth in a marine oxygen minimum zone. Ecology 93:1659-73.
F. J. Stewart, O. Ulloa and E. F. DeLong. 2012. Microbial metatranscriptomics in a permanent marine oxygen minimum zone. Environ. Microbiol. 14:23-40.
McCarren, J., Becker, J., Repeta, D., Shi, Y., C.R. Young, Malmstrom, R. Chisholm P., and E. F. DeLong. 2010. Microbial community transcriptomes reveal microbes and metabolic pathways associated with dissolved organic matter turnover in the sea, Proc, Natl. Acad. Sci. USA 107:16420-16427.
Shi, Y., Tyson, G. W., and E. F. DeLong. 2009. Metatranscriptomics reveals unique microbial small RNAs in the oceanís water column. Nature 459: 266-269.
Falkowski, P. D., Fenchel, T. and E.F. DeLong. 2008. The microbial engines that drive biogeochemical cycles. Science, 320:1034-1038.
DeLong, E. F., Preston, C. M.., Martinez, A., Mincer, T., Frigaard, N.U., Rich, V., Hallam, S. J., Sullivan, M., Edwards, R., Beltran, R.B., Chisholm, S. W., and D. M. Karl 2006. Community genomics among stratified microbial assemblages in the oceanís interior. Science 311: 496-503.
Frigaard, N.U, Martinez, C., Mincer, T., E. F. DeLong. 2006. Proteorhodopsin lateral gene transfer between marine planktonic Bacteria and Archaea. Nature 439:847-850.
DeLong. E. F. and D. M. Karl. 2005. Genomic perspectives in microbial oceanography. Nature 437: 336-342.
Hallam, S. J., Putnam, N.. Preston, C.M., Detter, J.C., Richardson, P. M., Rokhsar, D., and E. F. DeLong. 2004. Reverse Methanogenesis: Testing the Hypothesis with Environmental Genomics, Science, 305: 1457-1462.
Béjà O., Suzuki, M. T., Heidelberg, J.F., Nelson, W.C., Preston, C.M., Hamada T., Eisen, J.A., Fraser, C., and E. F. DeLong. 2002. Unexpected diversity among marine aerobic anoxygenic phototrophs. Nature 415:630-633.
Orphan, V. J., C. House, K. U. Hinrichs, K. McKeegan, and E.F. DeLong. 2001. Methane-consuming archaea revealed by directly coupled isotopic and phylogeneticanalysis. Science 293:484 487.
Béjà, O., L. Aravind, E. V. Koonin, M. T. Suzuki, A. Hadd, L. P. Nguyen, S. B. Jovanovich, C. Gates, R. A. Feldman, J. L. Spudich, E. N. Spudich, and E. F. DeLong. 2000. Bacterial rhodopsin: evidence for a new type of phototrophy in the sea. Science
K.-U. Hinrichs, J. M. Hayes, S. P. Sylva, P. G. Brewer, and E. F. DeLong. 1999. Methane consuming archaea: Molecular-isotopic and phylogenetic evidence, Nature 398:802-805.
DeLong, E. F., K. Y. Wu, B. B. Prezelin and R. V. M. Jovine. 1994. High abundance of Archaea in Antarctic marine picoplankton. Nature 371: 695-697.
DeLong, E. F., D. G. Franks and A. L. Alldredge. 1993. Phylogenetic diversity of aggregate-attached versus free-living marine bacterial assemblages. Limnol. Oceanog. 38:924-934.
DeLong, E. F. 1992. Archaea in coastal marine environments, Proc. Natl. Acad. Sci. USA, 89: 5685-5689.