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Tesis sobre el tema "Rhizobium leguminosarum Molecular aspects"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 29 de enero de 2023

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1

Heinrich, Keith. "Ecological and molecular studies on rhizobial rhizopines." Title page, contents and summary only, 1999. http://web4.library.adelaide.edu.au/theses/09PH/09phh469.pdf.

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Corrigendum attached to back cover. Includes bibliographical references (leaves 160-190). Investigates the role of rhizopines in rhizobial competition for nodulation, and to isolate the rhizopine synthesis genes in Rhizobium leguminosarum bv. viciae.

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2

Bahar, Masoud. "Molecular biology of rhizopine genes in Rhizobium leguminosarum br. viciae /." Title page, table of contents and summary only, 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phb1508.pdf.

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3

Simpkins, Sean A. "The DnaK molecular chaperone of Rhizobium leguminosarum." Thesis, University of East Anglia, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302035.

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4

Stevens, James B. "The molecular genetics of iron uptake in rhizobium leguminosarum." Thesis, University of East Anglia, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323075.

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5

Rossen, L. "Molecular analysis of the nodulation genes of Rhizobium leguminosarum." Thesis, University of East Anglia, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370396.

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6

Sindhu, Satyavir Singh. "Molecular analysis of lipopolysaccharide and membrane associated proteins in Rhizobium leguminosarum." Thesis, University of East Anglia, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.256988.

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This study describes the use of monoclonal antibodies to investigate molecular components of the Rhizobium cell surface that might be important for symbiotic interactions with the host legume. Components that have been identified include lipopolysaccharide and both membrane-associated and secreted proteins. Differences were observed in the structure and antigenicity of lipopolysaccharide (LPS) from free-living rhizobia compared with that of endosymbiotic bacteroids. Culture pH, oxygen concentration and carbon source were all found to be important factors that could affect the expression of LPS

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7

Stinnett, Joshua. "The Chelation of Metal Ions by Vicibactin, a Siderophore Produced by Rhizobium leguminosarum ATCC 14479." Digital Commons @ East Tennessee State University, 2019. https://dc.etsu.edu/honors/485.

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Vicibactin is a small, high-affinity iron chelator produced by Rhizobium leguminosarum ATCC 14479. Previous work has shown that vicibactin is produced and secreted from the cell to sequester ferric iron from the environment during iron-deplete conditions. This ferric iron is then transported into the cell to be converted into ferrous iron. This study uses UV-Vis spectroscopy as well as ion trap-time of flight mass spectroscopy to determine that vicibactin does form a complex with copper(II) ions, however, at a much lower affinity than for iron(III). Stability tests have shown that the copper(I

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8

Cañete, Morales Alejandro Ignacio. "Caracterización molecular de aislados silvestres chilenos de Rhizobium a través del uso de marcadores moleculares basados en amplificación por RFLP-PCR." Tesis, Universidad de Chile, 2007. http://www.repositorio.uchile.cl/handle/2250/101862.

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9

Barisic, Valeria. "Characterization of Putative ExbB and ExbD Leads to the Identification of a Potential Tol-Pal System in Rhizobium leguminosarum ATCC 14479." Digital Commons @ East Tennessee State University, 2015. https://dc.etsu.edu/etd/2489.

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Rhizobium leguminosarum is a Gram negative nitrogen-fixing soil bacterium. Due to the limited bioavailability of iron, bacteria utilize siderophores that scavenge and bind available iron. The transport of iron-siderophore complexes is achieved by the TonB-ExbB-ExbD complex. We have previously shown that a functional TonB protein is necessary for iron transport by creating ΔtonB mutants and assessing their growth and 55Fe-siderophore transport ability. We attempted to identify and characterize the roles of putative exbB and exbD genes using a similar approach. Growth curves and sequence analyse

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10

Thaha, Fathuma Zuleikha. "Characterization of acetate metabolism genes in Sinorhizobium, Rhizobium, meliloti." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0016/MQ55093.pdf.

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11

Cai, Guo Qin 1966. "Molecular genetic analysis of acetoacetate metabolism in Sinorhizobium meliloti." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=37876.

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Many bacteria accumulate carbon stores as poly-3-hydroxybutyrate (PHB) when growth is limited but carbon availability is not. This stored carbon can then be utilized during conditions of limited carbon availability. The net PHB accumulation in the cell is dependent on the balance between PHB synthesis and degradation. Sinorhizobium meliloti accumulates PHB in the free-living stage but not in the symbiotic stage. The physiological role of the PHB cycle in S. meliloti is unknown. As a first step to understand the genetics of PHB degradation, transposon-generated mutants that were not able to use

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12

Lindsay, John Keldeagh. "The effect of lipo-chitooligosaccharide from Bradyrhizobium japonicum, on soybean salicylic acid, pathogenesis-related protein activity and gene expression /." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=112535.

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In this study, lipo-chitooligosaccharide (NodBj-V (C 18:1, MeFuc); LCO) 10-7M, extracted from Bradyrhizobium japonicum, was sprayed on the leaves of soybean cv. OAC Bayfield soybean and Evans x L66-2470 (carrying the rj1 mutation, and unable to nodulate). Leaf SA level and activities of the PR proteins chitinase, beta-1,3-glucanase and guaiacol peroxidase (GPOX) were quantified. Phenylalanine ammonia-lyase 1 (PAL1) and isoflavone synthase 2 (IFS2) relative gene expression levels in the sprayed leaves were quantified using quantitative real-time PCR. Messenger RNA abundance was quantified using

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13

Heinrich, Keith. "Ecological and molecular studies on rhizobial rhizopines / Keith Heinrich." Thesis, 1999. http://hdl.handle.net/2440/19425.

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Corrigendum attached to back cover.<br>Includes bibliographical references (leaves 160-190).<br>x, 190, [20] leaves : ill. ; 30 cm.<br>Investigates the role of rhizopines in rhizobial competition for nodulation, and to isolate the rhizopine synthesis genes in Rhizobium leguminosarum bv. viciae.<br>Thesis (Ph.D.) -- University of Adelaide, Dept. of Crop Protection, 1999

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14

Bahar, Masoud. "Molecular biology of rhizopine genes in Rhizobium leguminosarum bv. viciae / Masoud Bahar." Thesis, 1997. http://hdl.handle.net/2440/19069.

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Bibliography: leaves 101-121.<br>vii, 122, [77] leaves, [21] leaves of plates : ill. ; 30 cm.<br>Reports the characterisation of mos genes and preliminary studies on the mos genes in R. leguminosarum br. viciae strain 1a.<br>Thesis (Ph.D.)--University of Adelaide, Dept. of Crop Protection, 1998?

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15

Perrine, Francine Manuella. "Molecular genetic and physiological analysis of Rhizobium-rice interactions." Phd thesis, 2003. http://hdl.handle.net/1885/12417.

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Recently, it was found that strains of the soil bacterium Rhizobium leguminosarum biovar trifolii, which normally infect and nodulate clovers, can also associate and colonise different rice culutivars. When rice seedlings were inoculated with these rhizobia, there was a strain-specific response in the growth of the seedlings. This thesis examines the interaction of Rhizobium strains with rice. The following approaches were investigated to increase our understanding of the effects of Rhizobium on the early growth and development of this rice-Rhizobium association by: (a) using of a reporter G

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16

Beattie, Gwyn A. "Quantitative and molecular analysis of nodulation competitiveness of Rhizobium leguminosarum biovar phaseoli." 1991. http://catalog.hathitrust.org/api/volumes/oclc/25650823.html.

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Thesis (Ph. D.)--University of Wisconsin--Madison, 1991.<br>Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 113-126).

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17

Lewis-Henderson, Wendy Ruth. "Molecular and genetic analysis of strain-cultivar specificity in the Rhizobium-clover symbiosis." Phd thesis, 1991. http://hdl.handle.net/1885/142595.

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18

Howles, Paul Arthur. "A molecular characterization of phenylpropanoid pathway genes of Trifolium subterraneum." Phd thesis, 1992. http://hdl.handle.net/1885/143156.

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