University of Delaware - College of Engineering

Julia Anne Maresca

PhD, The Pennsylvania State University

Assistant Professor

Office: 344B DuPont Hall
Phone: 302-831-4391
Curriculum Vitae:  view

[ Short Bio | Education | Select Publications ]

Short Bio

I use high-throughput sequencing, bacterial genetics, and physiology to examine microbial responses to environmental inputs. Current projects in my lab include microbial signaling in coastal and hot spring biofilms, the effects of chemical amendments on carbon fixation rates and gene expression in a ferruginous tropical lake, and preliminary analysis of the microbial communities in oil sands waste.

I am currently looking for 1-2 graduate students. Please contact me if you are interested in any of these projects.


1999: BA, University of Chicago
2007: PhD, The Pennsylvania State University

Select Publications

A.L. Zerkle, K. Scheiderich, J.A. Maresca, L.J. Liermann, and S.L. Brantley. 2011. Molybdenum isotope fractionation by cyanobacterial assimilation during nitrate utilization and N2 fixation. Geobiology, 9(1):94-106.
J.A. Maresca, J.C. Braff, and E.F. Delong. 2009. Characterization of canthaxanthin biosynthesis genes from an uncultured marine bacterium. Environmental Microbiology Reports, 1: 524-534.
J.A. Maresca, S.P. Romberger, and D.A. Bryant. 2008. Isorenieratene biosynthesis in green sulfur bacteria requires the cooperative actions of two carotenoid cyclases. Journal of Bacteriology, 190: 6384-6391.
J.A. Maresca, J.E. Graham, and D.A. Bryant. 2008. The biochemical basis for structural diversity in the carotenoids of phototrophic bacteria. Photosynthesis Research, 97: 121-140.
J.A. Maresca, J.E. Graham, M. Wu, J. Eisen, and D.A. Bryant. 2007. Identification of a new family of lycopene cyclases in photosynthetic bacteria. Proceedings of the National Academy of Sciences, 104: 11784-11789.
Bryant, D. A., A.M. Garcia Costas, J.A. Maresca, A. Gomez Maqueo Chew, C.G. Klatt, M.M. Bateson, L.J. Tallon, J. Hostetler, W.C. Nelson, J.F. Heidelberg, and D.M. Ward. 2007. Chloracidobacterium thermophilum: an aerobic phototrophic acidobacterium. Science, 317: 523-526.
Kim, H., H. Li, J.A. Maresca, D.A. Bryant, and S. Savikhin. 2007. Triplet exciton formation as a novel photoprotection mechanism in chlorosomes of Chlorobium tepidum. Biophys. J., 93: 192-201.
J.A. Maresca and D.A. Bryant. 2006. Identification of two genes encoding new carotenoid-modifying enzymes in the green sulfur bacterium Chlorobium tepidum. Journal of Bacteriology, 188: 6217-6223.
R.E. Ley, J.K. Harris, J. Wilcox, J.R .Spear, S.R. Miller, B.M. Bebout, J.A. Maresca, D.A. Bryant, N.R. Pace. 2006. Unprecedented bacterial community diversity and complexity in a hypersaline microbial mat. Applied and Environmental Microbiology, 72: 3685-3695.
A.R. Brannon, J.A. Maresca, J.D. Boeke, M.A. Basrai, and A.A. McBride. 2005. Reconstitution of BPV E2-mediated plasmid segregation in yeast by the Brd4 bromodomain protein. Proceedings of the National Academy of Sciences 102 (8): 2998-3003.
N.-U. Frigaard, J.A. Maresca, C.E. Yunker, A.D. Jones, and D.A. Bryant. 2004. Genetic manipulation of carotenoid biosynthesis in the green sulfur bacterium Chlorobium tepidum. Journal of Bacteriology 186: 5210-5220.
J.A. Maresca, A. Gomez Maqueo Chew, M. Ros Ponsatí, N-U. Frigaard, J.G. Ormerod, and D.A. Bryant. 2004. The bchU gene of Chlorobium tepidum encodes the C-20 methyltransferase in bacteriochlorophyll c biosynthesis. Journal of Bacteriology 186 (9): 2558-2566.
N-U Frigaard, A. Gomez Maqueo Chew, H. Li, J.A. Maresca, D.A. Bryant. 2003. Chlorobium tepidum: insights into the structure, physiology, and metabolism of a green sulfur bacterium derived from the complete genome sequence. Photosynthesis Research 78: 93-117.
EK Dimitriadis, F. Horkay, J. Maresca, B. Kachar, RS Chadwick. 2002. Determination of elastic moduli of soft, thin samples using the atomic force microscope. Biophysical Journal 82(5): 2798-810.
A. Krol, J. Maresca, M. Dewhirst, F. Yuan. 1999. Available volume fraction of macromolecules in the extravascular space of a fibrosarcoma: Implications for drug delivery. Cancer Research 59: 4136-4141.

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