Dissertations / Theses on the topic 'Nitrogen-fixing microorganisms'
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Landrum, Jason Paul. "Movement of new nitrogen through oceanic food webs." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28151.
Full textCommittee Chair: Joseph Montoya; Committee Member: Ellery Ingall; Committee Member: Emanuele DiLorenzo; Committee Member: Marc Weissburg; Committee Member: Mark Hay.
Terpolilli, Jason James. "Why are the symbioses between some genotypes of Sinorhizobium and Medicago suboptimal for N₂ fixation? /." Murdoch University Theses Program, 2009. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20090727.143325.
Full textLennihan, Robert. "Ecology of Nostoc in a high arctic oasis /." Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/5184.
Full textRapley, Joanne. "Phylogenetic diversity of nifH genes in Marion Island soil." Thesis, University of the Western Cape, 2006. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_1001_1223535337.
Full textThe microbial life of sub-Antarctic islands plays a key role in the islands ecosystem, with microbial activities providing the majority of nutrients available for primary production. Knowledge of microbial diversity is still in its infancy and this is particularly true regarding the diversity of micro-organisms in the Antarctic and sub-Antarctic regions. One particularly important functional group of micro-organisms is the diazotrophs, or nitrogen-fixing bacteria and archaea. This group have not been well studied in the sub-Antarctic region, but play an important role in the nutrient cycling of the island. This thesis explored the diversity of nitrogen-fixing organisms in the soil of different ecological habitats on the sub-Antarctic Marion Island.
Bunch, Nathan D. "Microbial response to nitrogen availability : preferential and adaptive community uptake." CardinalScholar 1.0, 2010. http://liblink.bsu.edu/uhtbin/catkey/1562868.
Full textPreferential uptake of available nitrogen forms -- Adaptive uptake in microbial communities.
Department of Biology
Xin, Gang. "Diazotrophic endophytes of Populus /." Thesis, Connect to this title online; UW restricted, 2008. http://hdl.handle.net/1773/10104.
Full textLynch, Derek H. (Derek Henry). "Low root-zone temperatures and soybean (Glycine max (L.) Merr.) N2- fixing symbiosis development." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=56677.
Full textNandasena, Kemanthi Gayathri. "Rapid evolution of diversity in the root nodule bacteria Biserrula plecinus L." Thesis, Nandasena, Kemanthi Gayathri (2004) Rapid evolution of diversity in the root nodule bacteria Biserrula plecinus L. PhD thesis, Murdoch University, 2004. https://researchrepository.murdoch.edu.au/id/eprint/221/.
Full textNandasena, Kemanthi Gayathri. "Rapid evolution of diversity in the root nodule bacteria Biserrula plecinus L." Nandasena, Kemanthi Gayathri (2004) Rapid evolution of diversity in the root nodule bacteria Biserrula plecinus L. PhD thesis, Murdoch University, 2004. http://researchrepository.murdoch.edu.au/221/.
Full textDale, Olivia R. "Detection, diversity, and activity on anaerobic ammonium oxidizing bacteria (Anammox) in the Cape Fear River Estuary /." Electronic version (PDF), 2007. http://dl.uncw.edu/etd/2007-1/r1/daleo/oliviadale.pdf.
Full textWilson, Mark Steven Michael. "Mutagenesis of nifE and nifN from Azotobacter vinelandii." Thesis, Virginia Tech, 1988. http://hdl.handle.net/10919/43071.
Full textMaster of Science
Burgoyne, Tricia A. "Free living nitrogen-fixation in ponderosa pine/Douglas-fir forests of western Montana." Connect to this title online, 2007. http://etd.lib.umt.edu/theses/available/etd-05302007-085002/.
Full textLaniya, Titeki Sandra. "Isolation and characterisation of soybean (Glycine max) nodule autoregulation receptor kinase gene (GmNARK) /." [St. Lucia, Qld.], 2004. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18188.pdf.
Full textBrigle, Kevin Eugene. "Studies on the structure and function of various nif and nif- associated gene products encoded within the Azotobacter vinelandii nif gene cluster." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54498.
Full textPh. D.
Sur, Saubashya. "Studies of codon usage, proteome analysis and evolution of nitrogen fixing genes in some microorganisms a bioinformatic approach." Thesis, University of North Bengal, 2010. http://hdl.handle.net/123456789/1378.
Full textPan, Bo 1963. "Mineral nitrogen inhibition and signal production in soybean-B. japonicum symbiosis." Thesis, McGill University, 1999. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=36670.
Full textOther studies also show that temperature affected genistein and daidzein content and concentration in soybean roots. The effect of temperature varied among soybean cultivars. Some PGPR strains can mitigate the negative effects of nitrate on soybean nodulation and nitrogen fixation, however, this is influenced by soybean genotype. Applying PGPR together with genistein preincubation of B. japonicum cells improved soybean nodulation and increased yield. The level of improvement varied among soybean cultivars and PGPR strains. Preincubation of B. japonicum cells with genistein improved strain competitiveness under greenhouse, but not field conditions.
Overall, these findings suggested that both plant-to-Bradyrhizobium and Bradyrhizobium-to-plant signals play important roles in the effects of mineral N on nodulation and N fixation. Signal manipulation could partially overcome the inhibitory effects of mineral N on soybean- B. japonicum N fixation symbiosis.
Carlton, Timothy M., and n/a. "Iron and microevolution in Mesorhizobia." University of Otago. Department of Microbiology & Immunology, 2006. http://adt.otago.ac.nz./public/adt-NZDU20070215.154441.
Full textAngeloni, Stephen V. "Characterization of the nifUHD cluster and a new myoglobin-like gene from Nostoc commune UTEX 584." Diss., Virginia Tech, 1992. http://hdl.handle.net/10919/37418.
Full textPh. D.
Zhao, Lihan. "Genetic modification of nodulation and N2 fixation in soybean / Lihan Zhao." [St. Lucia, Qld.], 2004. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18398.pdf.
Full textWolfenden, J. "Nitrogen fixation associated with Spartina anglica : A study of nitrogen-fixing microorganisms and their contribution to the growth of a developing Spartina anglica marsh in the Lune Estuary." Thesis, Lancaster University, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.355042.
Full textHarris, Kelvin. "Understanding the NifM dependence of NifH in Azotobacter vinelandii functional substitution of NifH by a NifH-ChlL chimeric construct in a NifM- strain /." Master's thesis, Mississippi State : Mississippi State University, 2007. http://library.msstate.edu/etd/show.asp?etd=etd-07062007-110702.
Full textHowitt, Susan M. "Nitrogen assimilation in bradyrhizobium (parasponia) SP. ANU289." Phd thesis, 1986. http://hdl.handle.net/1885/144112.
Full textIismaa, Siiri Epp. "A molecular and genetic analysis of symbiotic nitrogen fixation genes in Rhizobium trifolii." Phd thesis, 1988. http://hdl.handle.net/1885/142608.
Full textWeinman, Jeremy John. "The molecular genetics of nitrogen fixation in the bradyrhizobium sp. (parasponia) strain ANU289." Phd thesis, 1986. http://hdl.handle.net/1885/142993.
Full textFong, Allison A. "Mesoscale variability in nitrogen-fixing bacteria and rates of nitrogen fixation in the North Pacific Ocean." Thesis, 2006. http://hdl.handle.net/10125/20801.
Full textRodrigues, Kevin J. "The effect of cadmium upon the growth and nitrogen fixation of the cyanobacterium Gloeothece ATCC 27152 /." 1986. https://scholarworks.umass.edu/theses/3397.
Full textWiebkin, Suzanne Constance. "The enhancement of wheat growth after inoculation with free-living nitrogen-fixing bacteria." Thesis, 2003. http://hdl.handle.net/2440/115252.
Full textThesis (Ph.D.) -- University of Adelaide, Dept. of Soil and Water, 2003
Hebbar, K. Prakash. "Associations between Zea Mays L. and soil bacteria." Phd thesis, 1986. http://hdl.handle.net/1885/143768.
Full textNdiaye, Aissatou. "Impact of a red clover winter cover crop on carbon and nitrogen mineralization by microorganisms in soil aggregates." Thesis, 1998. http://hdl.handle.net/1957/33785.
Full textGraduation date: 1999
Gao, Ke. "Characterisation of the regulatory gene nolR in Sinorhizobium meliloti." Master's thesis, 2003. http://hdl.handle.net/1885/148661.
Full textOlsson, Jane Elizabeth. "Systemic control of soybean nodule autoregulation." Phd thesis, 1988. http://hdl.handle.net/1885/142985.
Full textPrayitno, Joko. "An investigation of bacterial-rice associations." Master's thesis, 2001. http://hdl.handle.net/1885/147759.
Full textKifle, Medhin Hadish. "Development of free-living diazotrophic (FLD) inoculants and their effects on crop growth." Thesis, 2008. http://hdl.handle.net/10413/5277.
Full textThesis (M.Sc.)-University of KwaZulu-Natal, Pietermaritzburg, 2008.