Wikipedia

Margaret Mulholland

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

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

Education and career

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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

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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

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  • Capone, Douglas G.; Bronk, Deborah A.; Mulholland, Margaret R.; Carpenter, Edward J. (2008-08-15). Nitrogen in the Marine Environment. Elsevier. ISBN 978-0-08-055892-9.
  • Mulholland, Margaret R.; Bernhardt, Peter W.; Heil, Cynthia A.; Bronk, Deborah A.; O'Neil, Judith M. (2006). "Nitrogen fixation and release of fixed nitrogen by Trichodesmium spp. in the Gulf of Mexico". Limnology and Oceanography. 51 (4): 1762–1776. Bibcode:2006LimOc..51.1762M. doi:10.4319/lo.2006.51.4.1762. ISSN 0024-3590. S2CID 15821273.
  • 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.
  • Mulholland, MR; Bronk, DA; Capone, DG (2004). "Dinitrogen fixation and release of ammonium and dissolved organic nitrogen by Trichodesmium IMS101". Aquatic Microbial Ecology. 37: 85–94. doi:10.3354/ame037085. ISSN 0948-3055.

References

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  1. ^ a b "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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