Margaret Mulholland

Last updated
Margaret Mulholland
Alma materUniversity of Maryland, College Park
Scientific career
InstitutionsOld Dominion University
Thesis Nitrogen utilization, metabolism and the regulation of N₂ fixation in Trichodesmium spp.  (1998)

Margaret Ruth Mulholland is professor at Old Dominion University known for her work on nutrients in marine and estuarine environments.

Contents

Education and career

Mulholland has a B.S. from the University of Notre Dame (1984), and an M.S. in biological oceanography (1986) and an M.M. in marine affairs (1992) from the University of Washington. [1] In 1998 she earned her Ph.D. in biological oceanography from the University of Maryland. [2] As of 2022 she is a professor at Old Dominion University. [1]

Research

Mulholland's early research examined the oxidation of amino acids [3] and nitrogen cycling by the marine bacterium Trichodesmium. [4] [5] Her subsequent work investigated nitrogen cycling in harmful algae including Aureococcus [6] [7] and Karenia brevis. [8] She has examined how phytoplankton will respond to an ocean enriched in carbon dioxide, [9] the impact of climate change on the Chesapeake Bay, [10] and the contribution of nitrogen-fixing organisms to nutrient cycling. [11] [12] Her research tracks organic compounds in seawater, for example cyanate [13] or compounds produced by phytoplankton. [14] In coastal environments she has researched the impact of coastal flooding and the movement of pollution during floods. [15] [16] As of 2022 she has an h-index of 46 and has publications that have been cited more than 7000 times. [17]

Selected publications

Related Research Articles

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References

  1. 1 2 "Margaret Mulholland". Old Dominion University. Retrieved 2022-03-18.
  2. ↑ Mulholland, Margaret Ruth (1998). Nitrogen utilization, metabolism and the regulation of N-fixation in Trichodesmium spp (Thesis). OCLC   40949523.
  3. ↑ Mulholland, MR; Glibert, PM; Berg, GM; Van Heukelem, L; Pantoja, S; Lee, C (1998). "Extracellular amino acid oxidation by microplankton: a cross-ecosystem comparison". Aquatic Microbial Ecology. 15: 141–152. doi: 10.3354/ame015141 . ISSN   0948-3055.
  4. ↑ Mulholland, Margaret R.; Capone, Douglas G. (2000-04-01). "The nitrogen physiology of the marine N2-fixing cyanobacteria Trichodesmium spp". Trends in Plant Science. 5 (4): 148–153. doi:10.1016/S1360-1385(00)01576-4. ISSN   1360-1385. PMID   10740295.
  5. ↑ Mulholland, Mr; Capone, Dg (1999). "Nitrogen fixation, uptake and metabolism in natural and cultured populations of Trichodesmium spp". Marine Ecology Progress Series. 188: 33–49. Bibcode:1999MEPS..188...33M. doi: 10.3354/meps188033 . ISSN   0171-8630.
  6. ↑ Mulholland, Margaret R.; Gobler, Christopher J.; Lee, Cindy (2002). "Peptide hydrolysis, amino acid oxidation, and nitrogen uptake in communities seasonally dominated by Aureococcus anophagefferens". Limnology and Oceanography. 47 (4): 1094–1108. Bibcode:2002LimOc..47.1094M. doi:10.4319/lo.2002.47.4.1094. ISSN   0024-3590. S2CID   86067819.
  7. ↑ Mulholland, Margaret R.; Boneillo, George; Minor, Elizabeth C. (2004-11-01). "A comparison of N and C uptake during brown tide (Aureococcus anophagefferens) blooms from two coastal bays on the east coast of the USA". Harmful Algae. Brown Tides. 3 (4): 361–376. doi:10.1016/j.hal.2004.06.007. ISSN   1568-9883.
  8. ↑ Killberg-Thoreson, Lynn; Mulholland, Margaret R.; Heil, Cynthia A.; Sanderson, Marta P.; O’Neil, Judith M.; Bronk, Deborah A. (2014). "Nitrogen uptake kinetics in field populations and cultured strains of Karenia brevis". Harmful Algae. 38: 73–85. doi:10.1016/j.hal.2014.04.008.
  9. ↑ HUTCHINS, DAVID A.; MULHOLLAND, MARGARET R.; FU, FEIXUE (2009). "Nutrient Cycles and Marine Microbes in a CO₂-Enriched Ocean". Oceanography. 22 (4): 128–145. doi: 10.5670/oceanog.2009.103 . ISSN   1042-8275. JSTOR   24861030.
  10. ↑ Najjar, Raymond G.; Pyke, Christopher R.; Adams, Mary Beth; Breitburg, Denise; Hershner, Carl; Kemp, Michael; Howarth, Robert; Mulholland, Margaret R.; Paolisso, Michael; Secor, David; Sellner, Kevin (2010-01-01). "Potential climate-change impacts on the Chesapeake Bay". Estuarine, Coastal and Shelf Science. 86 (1): 1–20. Bibcode:2010ECSS...86....1N. doi:10.1016/j.ecss.2009.09.026. ISSN   0272-7714.
  11. ↑ Mulholland, M. R.; Bernhardt, P. W.; Blanco-Garcia, J. L.; Mannino, A.; Hyde, K.; Mondragon, E.; Turk, K.; Moisander, P. H.; Zehr, J. P. (2012-06-24). "Rates of dinitrogen fixation and the abundance of diazotrophs in North American coastal waters between Cape Hatteras and Georges Bank". Limnology and Oceanography. 57 (4): 1067–1083. Bibcode:2012LimOc..57.1067M. doi:10.4319/lo.2012.57.4.1067. hdl: 2060/20140006592 . ISSN   0024-3590. S2CID   13692577.
  12. ↑ Sipler, Rachel E.; Gong, Donglai; Baer, Steven E.; Sanderson, Marta P.; Roberts, Quinn N.; Mulholland, Margaret R.; Bronk, Deborah A. (2017-07-28). "Preliminary estimates of the contribution of Arctic nitrogen fixation to the global nitrogen budget". Limnology and Oceanography Letters. 2 (5): 159–166. doi: 10.1002/lol2.10046 . ISSN   2378-2242. S2CID   90277458.
  13. ↑ Widner, Brittany; Mordy, Calvin W.; Mulholland, Margaret R. (2017-11-20). "Cyanate distribution and uptake above and within the Eastern Tropical South Pacific oxygen deficient zone". Limnology and Oceanography. 63 (S1). doi: 10.1002/lno.10730 . ISSN   0024-3590. S2CID   103002246.
  14. ↑ Cao, Xiaoyan; Mulholland, Margaret R.; Helms, John R.; Bernhardt, Peter W.; Duan, Pu; Mao, Jingdong; Schmidt-Rohr, Klaus (2017-11-21). "A Major Step in Opening the Black Box of High-Molecular-Weight Dissolved Organic Nitrogen by Isotopic Labeling of Synechococcus and Multibond Two-Dimensional NMR". Analytical Chemistry. 89 (22): 11990–11998. doi:10.1021/acs.analchem.7b02335. ISSN   0003-2700. PMID   29083864.
  15. ↑ Coutu, Peter (November 2, 2018). "Tidal flooding could pose serious problems for Chesapeake Bay restoration, professor says". Virginian Pilot. Retrieved 2022-03-18.
  16. ↑ Scauzillo, Steve (2019-03-16). "How areas flood, even on sunny days — it's a thing". San Gabriel Valley Tribune. Retrieved 2022-03-18.
  17. ↑ "MARGARET MULHOLLAND". scholar.google.com. Retrieved 2022-03-18.
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