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Department of Ocean, Earth and Atmospheric Sciences




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RECENT PUBLICATIONS

Margaret R. Mulholland
Associate Professor

Mulholland, M. R., P. M. Glibert and C. Lee. 2003. Peptide hydrolysis, amino acid oxidation and N uptake along a nutrient and salinity gradient in the Pocomoke River, Maryland. Mar. Ecol. Prog. Ser. (in press).

Mulholland, M. R., S. Floge, E. J. Carpenter and D. G. Capone. 2002. Alkaline phosphatase activity in relation to phosphorous nutrition in cultures and natural populations of Trichodesmium. Mar. Ecol. Prog. Ser. 239: 45-55.

Mulholland, M. R., C. J. Gobler and C. Lee. 2002. Peptide hydrolysis, amino acid oxidation and N uptake in communities seasonally dominated by Aureococcus anophagefferens. Limnol. Oceanogr. 47: 1094-1108.

Mulholland, M. R., K. Ohki and D. G. Capone. 2001. Nutrient controls on nitrogen uptake and metabolism by natural populations and cultures of Trichodesmium (Cyanobacteria). J. Phycol. 37: 1001-1009.

Mulholland, M. R. and D. G. Capone. 2001. The stoichiometry of N and C utilization in cultured populations of Trichodesmium IMS101. Limnol. Oceanogr. 46: 436-443.

Dupouy, C., J. Neveux, A. Subramaniam, M. R. Mulholland, J. P. Montoya, L. Campbell, D. G. Capone and E. J. Carpenter. 2000. Satellite captures Trichodesmium blooms in the Southwestern Tropical Pacific EOS 81 : 13-16.

Mulholland, M. R. and D. G. Capone. 2000. The physiology of the marine N2 fixing cyanobacteria Trichodesmium. Trends in Plant Science 5: 148-153.

Mulholland, M. R. and D. G. Capone. 1999. Nitrogen fixation, uptake and metabolism in natural and cultured populations of Trichodesmium spp. Mar. Ecol. Prog. Ser. 188: 33-49.

Mulholland, M. R., K. Ohki and D. G. Capone. 1999. Nitrogen utilization and metabolism relative to patterns of N2 fixation cultures of Trichodesmium NIBB1067. J. Phycol. 35: 977-988.

Mulholland, M. R., C. Shoemaker, K. Ohki and D. G. Capone. 1999. Utilization of combined forms of N in cultures and field populations of Trichodesmium. Pp. 279-286. In: Marine cyanobacteria, Charpy L & Larkum AWD (eds) Bulletin de l'Institut Océanographique, Monaco, special issue No. 19.

Carpenter, E. J., J. P. Montoya, J. Burns, M. R. Mulholland, A. Subramaniam and D. G. Capone. 1999. Extensive bloom of a N2-fixing symbiotic association in the tropical Atlantic Ocean. Mar. Ecol. Prog. Ser. 185: 273-283.

Mulholland, M. R., P. M. Glibert, G. M. Berg, L. Van Heukelem, S. Pantoja and C. Lee. 1998. Extracellular amino acid oxidation by phytoplankton and cyanobacteria: a cross-ecosystem comparison. Aquatic Microbial Ecology 15(2): 141-152.

Miller, C. A., P. M. Glibert, G. M. Berg and M. R. Mulholland. 1997. Effects of grazer and substrate amendments on nutrient and plankton dynamics in estuarine enclosures. Aquatic Microbial Ecology 12: 251-261.


Manuscripts Preparation or Submitted

Mulholland, M. R., D. A. Bronk and D. G. Capone. N2 fixation and regeneration of NH4+ and dissolved organic N by Trichodesmium IMS101. Limnol. Oceanogr. (submitted)

Mulholland, M. R., C. A. Heil, D. A. Bronk, J. M. O'Neil and P. Bernhardt. Does nitrogen regeneration from the N2 fixing cyanobacteria, Trichodesmium spp. fuel Karenia brevis blooms in the Gulf of Mexico? Proceedings of the Xth International Conference on Harmful Algae (submitted).

Mulholland, M. R., G. Boneillo, P. Bernhardt, E. Cornfeld, A. M. Watson and E. Minor. A comparison of photosynthetic and heterotrophic carbon acquisition by Aureococcus anophagefferens. Proceedings of the Xth International Conference on Harmful Algae (submitted).

Watson, A. M., M. R. Mulholland, P. Bernhardt, A. Rocha, E. Cornfeld and G. Boneillo. Uptake and degradation of organic compounds by bloom-forming dinoflagellates in the lower Chesapeake Bay and its tributaries. Proceedings of the Xth International Conference on Harmful Algae (submitted).

Bronk, D. A., M. P. Sanderson, M. R. Mulholland, C. A. Heil, and J. M. O'Neil. Organic and inorganic nitrogen uptake kinetics in field populations dominated by Karenia brevis. Proceedings of the Xth International Conference on Harmful Algae (submitted).

Heil, C. A., M. R. Mulholland, D. A. Bronk, P. Bernhardt and J. M. O'Neil. Bacterial and size-fractionated primary production within the 2001 Karenia brevis bloom on the West Florida Shelf. Proceedings of the Xth International Conference on Harmful Algae (submitted).

Mulholland, M. R., C. Lee, E. J. Carpenter, J. Krauk, D. G. Capone. Microbial Activity associated with Trichodesmium spp.: implications for nutrient recycling (in preparation)

Boneillo, G., M. R. Mulholland, C. J. Gobler, C. Lee. Nutrient controls on extracellular enzyme activity and uptake of organic N and C by a community seasonally dominated by Aureococcus anophagefferens. (in preparation).

Recent Presentations

Mulholland, M. R. and C. Lee. 2003. Peptide hydrolysis and dipeptide uptake in marine environments. Presented at the American Society of Limnology and Oceanography's Ocean Sciences Meeting, Salt Lake City, UT (Feb. 10-14, 2003).

O'Neil, J. M., J. Lenes, C. A. Heil, P. Bernhardt, M. R. Mulholland and D. A. Bronk. 2003. Dissolved iron uptake by the cyanobacterium Trichodesmium in surface waters of the Gulf of Mexico. Presented at the American Society of Limnology and Oceanography's Ocean Sciences Meeting, Salt Lake City, UT (Feb. 10-14, 2003).

Heil, C. A., M. R. Mulholland, P. Bernhardt, D. A. Bronk, J. M. O'Neil, G. A. Vargo, J. J. Walsh and K. A. Fanning. 2003. Spatial and temporal patterns of DON concentration on the central West Florida Shelf: contributions from offshore nitrogen fixation and estuarine outflows. Presented at the American Society of Limnology and Oceanography's Ocean Sciences Meeting, Salt Lake City, UT (Feb. 10-14, 2003).

Simjouw, J. P., E. C. Minor and M. R. Mulholland. 2003. Molecular-level characteristics of dissolved organic matter in Chincoteague Bay prior to and during an Aureococcus anophagefferens bloom. Presented at the American Society of Limnology and Oceanography's Ocean Sciences Meeting, Salt Lake City, UT (Feb. 10-14, 2003).

Mulholland, M. R. 2003. N2 fixation, N uptake and N regeneration by Trichodesmium. At the INDO-US workshop on Biocomplexity, Doña Paula, Goa, India (16-18 January 2003).

Mulholland, M. R., J. I. Goes, J. R. Donat, P. R. Edwards, H. Xue, F. Chai, A. Subramaniam. 2003. Biocomplexity in the Environment: Assessing biological, chemical, physical and anthropogenic factors affecting productivity, N2 fixation, and elemental cycling in the eastern Arabian Sea. At the INDO-US workshop on Biocomplexity, Doña Paula, Goa, India (16-18 January 2003).

Henry, A., M. R. Mulholland, P. Bernhardt, A. M. Watson, G. Boneillo. 2002. Nutrient Uptake Kinetics in Two Virginia Estuaries. Presented at the AGU Fall Meeting, San Francisco, CA (December 6-10, 2002).

Mulholland, M. R., C. A. Heil, D. A. Bronk, J. M. O'Neil and P. Bernhardt. 2002. Does nitrogen regeneration from the N2 fixing cyanobacteria, Trichodesmium spp., fuel Karenia brevis blooms in the Gulf of Mexico? To be presented at the Xth International Conference on Harmful Algae, St. Petersburg, FL (October 21-25, 2002).

Mulholland, M. R., G. Boneillo, P. Bernhardt, E. Cornfeld, A. M. Watson and E. Minor. 2002. A comparison of photosynthetic and heterotrophic carbon acquisition by Aureococcus anophagefferens. Presented at the Xth International Conference on Harmful Algae, St. Petersburg, FL (October 21-25, 2002).

Watson, A. M., M. R. Mulholland, P. Bernhardt, A. Rocha, E. Cornfeld and G. Boneillo. 2002. Uptake and degradation of organic compounds by bloom-forming dinoflagellates in the lower Chesapeake Bay and its tributaries. Presented at the Xth International Conference on Harmful Algae, St. Petersburg, FL (October 21-25, 2002).

Bronk, D. A., M. P. Sanderson, M. R. Mulholland, C. A. Heil, and J. M. O'Neil. 2002. Organic and inorganic nitrogen uptake kinetics in field populations dominated by Karenia brevis. Presented at the Xth International Conference on Harmful Algae, St. Petersburg, FL (October 21-25, 2002).

Heil, C. A., M. R. Mulholland, D. A. Bronk, P. Bernhardt and J. M. O'Neil. 2002. Bacterial and size-fractionated primary production within the 2001 Karenia brevis bloom on the West Florida Shelf. Presented at the Xth International Conference on Harmful Algae, St. Petersburg, FL (October 21-25, 2002).

Mulholland, M. R., D. A. Bronk, C. A. Heil, J. O'Neil, P. Bernhardt and M. Sanderson. 2002. N2 fixation and N regeneration by Trichodesmium in the Gulf of Mexico and in cultures. Presented at the American Society of Limnology and Oceanography and American Geophysical Union's Ocean Sciences Meeting, Honolulu, HI (Feb. 11-15, 2002).

Bronk, D. A., M. R. Mulholland, M. Sanderson, P. Bernhardt, C. A. Heil, J. O'Neil. 2002. Fate of recently fixed nitrogen by Trichodesmium in the eastern Gulf of Mexico: results from dialysis experiments. Presented at the American Society of Limnology and Oceanography and American Geophysical Union's Ocean Sciences Meeting, Honolulu, HI (Feb. 11-15, 2002).

Sanderson, M., D. A. Bronk, M. R. Mulholland, P. Bernhardt and C. A. Heil. 2002. Nitrogen nutrition of Trichodesmium in the eastern Gulf of Mexico. Presented at the American Society of Limnology and Oceanography and American Geophysical Union's Ocean Sciences Meeting, Honolulu, HI (Feb. 11-15, 2002).

Capone, D. G., J. Burns, E. J. Carpenter, M. Furnas, L. Sprague, J. Montoya, M. R. Mulholland. 2002. High rates of N2 fixation in coastal waters of northern Australia. Presented at the American Society of Limnology and Oceanography and American Geophysical Union's Ocean Sciences Meeting, Honolulu, HI (Feb. 11-15, 2002).

Mulholland, M. R., C. Gobler and C. Lee. 2001. Amino acid oxidation and peptide hydrolysis in populations seasonally dominated by Aureococcus anophagefferens: pathways of DOM mobilization. American Society of Limnology and Oceanography, Albuquerque, NM (Feb. 12-16, 2000).