Margaret Mulholland
Margaret Ruth Mulholland ni mhadhiri katika Chuo cha Old Dominion na anafahamika kwa kazi zake katika mazingira ya majini.
Elimu na Kazi
[hariri | hariri chanzo]Mulholland ana shahada ya sayansi kutoka Chuo Kikuu cha Notre Dame (1984), na shahada ya uzamili katika biolojia ya bahari (1986) na M.M. katika masuala ya baharini (1992) kutoka Chuo Kikuu cha Washington.[1] Mnamo 1998 alipata uzamivu katika uchunguzi wa bahari ya kibiolojia kutoka Chuo Kikuu cha Maryland.[2] Kufikia 2022 yeye ni profesa katika Chuo Kikuu cha Old Dominion.
Utafiti
[hariri | hariri chanzo]Utafiti wa mwanzo wa Mulholland ulichunguza uoksidishaji wa tindikali za amino[3] na uzalishaji wa naitrojeni kutokana bakteria wa baharini Trichodesium.[4][5]Kazi yake iliyofuata ilichunguza uzalishaji wa nitrojeni katika mwani hatari ikiwa ni pamoja na Aureococcus[6] [7]na Karenia brevis.[8]Alifanya uchunguzi wa jinsi gani phytoplankton itavokubaliana katika bahari yenye carbon dioxide, [9]athari za mabadiliko ya hali ya hewa kwenye Ghuba ya Chesapeake,[10] na mchango wa viumbe vinavyorekebisha nitrojeni kwa uzalishaji virutubisho.[11][12]
Marejeo
[hariri | hariri chanzo]- ↑ "Margaret Mulholland". Old Dominion University (kwa Kiingereza). 2022-08-21. Iliwekwa mnamo 2023-05-20.
- ↑ "Nitrogen utilization, metabolism and the regulation of N₂ fixation in Trichodesmium spp. | WorldCat.org". www.worldcat.org (kwa Kiingereza). Iliwekwa mnamo 2023-05-20.
- ↑ Mulholland, Margaret R.; Glibert, Patricia M.; Berg, Gry Miné; Heukelem, Laurie Van; Pantoja, Silvio; Lee, Cindy (1998-07-02). "Extracellular amino acid oxidation by microplankton: a cross-ecosystem comparison". Aquatic Microbial Ecology (kwa Kiingereza). 15 (2): 141–152. doi:10.3354/ame015141. ISSN 0948-3055.
- ↑ Mulholland, Margaret R; Capone, Douglas G (2000-04). "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.
{{cite journal}}: Check date values in:|date=(help) - ↑ Mulholland, Margaret R.; Capone, Douglas G. (1999-11-03). "Nitrogen fixation, uptake and metabolism in natural and cultured populations of Trichodesmium spp". Marine Ecology Progress Series (kwa Kiingereza). 188: 33–49. doi:10.3354/meps188033. ISSN 0171-8630.
- ↑ Mulholland, Margaret R.; Gobler, Christopher J.; Lee, Cindy (2002-07). "Peptide hydrolysis, amino acid oxidation, and nitrogen uptake in communities seasonally dominated by Aureococcus anophagefferens". Limnology and Oceanography (kwa Kiingereza). 47 (4): 1094–1108. doi:10.4319/lo.2002.47.4.1094.
{{cite journal}}: Check date values in:|date=(help) - ↑ 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 (kwa Kiingereza). 3 (4): 361–376. doi:10.1016/j.hal.2004.06.007. ISSN 1568-9883.
- ↑ Killberg-Thoreson, Lynn; Mulholland, Margaret R.; Heil, Cynthia A.; Sanderson, Marta P.; O’Neil, Judith M.; Bronk, Deborah A. (2014-09-01). "Nitrogen uptake kinetics in field populations and cultured strains of Karenia brevis". Harmful Algae. Nutrient dynamics of Karenia brevis red tide blooms in the eastern Gulf of Mexico (kwa Kiingereza). 38: 73–85. doi:10.1016/j.hal.2014.04.008. ISSN 1568-9883.
- ↑ Hutchins, David; Mulholland, Margaret; Fu, Feixue (2009-12-01). "Nutrient Cycles and Marine Microbes in a CO2-Enriched Ocean". Oceanography. 22 (4): 128–145. doi:10.5670/oceanog.2009.103. ISSN 1042-8275.
- ↑ Najjar, Raymond G.; Pyke, Christopher R.; Adams, Mary Beth; Breitburg, Denise; Hershner, Carl; Kemp, Michael; Howarth, Robert; Mulholland, Margaret R.; Paolisso, Michael (2010-01-01). "Potential climate-change impacts on the Chesapeake Bay". Estuarine, Coastal and Shelf Science (kwa Kiingereza). 86 (1): 1–20. doi:10.1016/j.ecss.2009.09.026. ISSN 0272-7714.
- ↑ Mulholland, M. R.; Bernhardt, P. W.; Blanco-Garcia, J. L.; Mannino, A.; Hyde, K.; Mondragon, E.; Turk, K.; Moisander, P. H.; Zehr, J. P. (2012-07). "Rates of dinitrogen fixation and the abundance of diazotrophs in North American coastal waters between Cape Hatteras and Georges Bank". Limnology and Oceanography (kwa Kiingereza). 57 (4): 1067–1083. doi:10.4319/lo.2012.57.4.1067.
{{cite journal}}: Check date values in:|date=(help) - ↑ Sipler, Rachel E.; Gong, Donglai; Baer, Steven E.; Sanderson, Marta P.; Roberts, Quinn N.; Mulholland, Margaret R.; Bronk, Deborah A. (2017-10). "Preliminary estimates of the contribution of Arctic nitrogen fixation to the global nitrogen budget". Limnology and Oceanography Letters (kwa Kiingereza). 2 (5): 159–166. doi:10.1002/lol2.10046. ISSN 2378-2242.
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