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Dissertations / Theses on the topic 'Gibberellin biosynthsis'

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1

Albone, Keum-Ryul S. "Stereochemical aspects of gibberellin biosynthesis." Thesis, University of Bristol, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.330054.

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2

Page, Andrew F. "Genetic modification of gibberellin biosynthesis for dwarfism." Thesis, University of Nottingham, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.246371.

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3

Makinson, Ian Kenneth. "The synthesis and metabolism of some novel gibberellins and related compounds." Thesis, University of Bristol, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328232.

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4

Barker, Richard. "Gibberellin biosynthesis and signalling in Arabidopsis root growth." Thesis, University of Nottingham, 2011. http://eprints.nottingham.ac.uk/12202/.

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Using targeted expression of a constitutively active repressor of GA signalling Susana Ubeda-Tomas et al., (2007) demonstrated that GA action in endodermal cells is necessary for correct root growth. However, GUS studies have shown the final and penultimate GA-biosynthetic genes are not expressed in the endodermis, indicating movement of GAs may be required. This study used the targeted mis-expression of GA degrading enzymes in Col-0 and the attempted targeted rescue of GA biosynthetic and signalling mutants, using the corresponding GA metabolic or signalling component, to gain an insight into
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5

Coles, Jeremy Paul. "Genetic manipulation of gibberellin biosynthesis in Arabidopsis thaliana." Thesis, University of Bristol, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263987.

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6

Castellaro, Simon John. "Aspects of the chemistry and biosynthesis of gibberellins." Thesis, University of Bristol, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329885.

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7

Nelki, Daniel Stephen. "The biosynthesis of terpenoids in Gibberella fujikuroi." Thesis, Royal Holloway, University of London, 1987. http://repository.royalholloway.ac.uk/items/aafa5f26-d255-49d0-b7fc-fd77cd53501e/1/.

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The aim of this work was to study the terpenoid biosynthesis and its regulation in the fungus Gibberella fujikuroi. This was facilitated by the use of a number of mutants of G. fujikuroi produced using UV radiation or N-methyl-N'-nitrosoguanidine and selected mainly by mutation in colour and photoregulation (Avalos et al., 1985). A separation procedure for the carotenoids was devised and up to 9 carotenoids were isolated. Their levels were measured in wild type G. fujikuroi and 4- of the mutants in both light and dark grown conditions. From this a carotenogenic pathway for G. fujikuroi was pro
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8

Israelsson, Maria. "Gibberellin homeostasis and biosynthesis in relation to shoot growth in hybrid aspen /." Umeå : Dept. of Forest Genetics and Plant Physiology, Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/s307.pdf.

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9

Singh, A. K. "Studies on the diterpenes of Helianthus annuus : identification of a new gibberellin and preparation of protein conjugates of kaurenoids." Thesis, University of Bristol, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376496.

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10

Bulley, Sean M. W. "Modification of gibberellin biosynthesis in apple (Malus x domestica Borkh.) for an improved dwarfing habit." Thesis, Open University, 2002. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.394756.

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11

Teale, William David. "The purification and cloning of a 2-oxoglutarate- dependent dioxygenase of gibberellin biosynthesis, and an investigation into its primary structure." Thesis, University of Bristol, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324322.

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12

Barboza, Barquero Luis Orlando [Verfasser], and Maarten [Akademischer Betreuer] Koornneef. "The identification of genetic variation for gibberellin biosynthesis and signalling among Arabidopsis thaliana accessions / Luis Orlando Barboza Barquero. Gutachter: Maarten Koornneef." Köln : Universitäts- und Stadtbibliothek Köln, 2014. http://d-nb.info/1047666510/34.

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13

Storey, Kathryn Madeleine. "Functional characterization and spatial and temporal patterns of expression of genes involved in gibberellin and diterpene resin acid biosynthesis in white spruce." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/57043.

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Conifers produce large quantities of diterpene resin acids (DRAs) as major components of the constitutive and induced oleoresin defense system. Like all vascular plants, conifers also produce gibberellin (GA) diterpene phytohormones, which influence growth and development. Conifers thus provide an interesting biological system for comparing the GA and DRA diterpene biosynthetic pathways. Despite serving different functions in growth and defense, respectively, the GA and DRA biosynthetic pathways are biochemically similar, utilizing the same isoprenoid precursors, evolutionarily related diterpe
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14

Svensson, Maria. "Studies of genes involved in regulating flowering time in Arabidopsis thaliana /." Uppsala : Dept. of Plant Biology and Forest Genetics, Swedish University of Agricultural Sciences, 2006. http://epsilon.slu.se/200602.pdf.

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15

Regnault, Thomas. "Biosynthèse et transport des gibbérellines chez Arabidopsis thaliana." Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAJ098/document.

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Les gibbérellines (GA) sont une classe de phytohormones modulant différents aspects du développement des plantes. La biosynthèse des GA est catalysée par l’activité de différentes classes d’enzymes permettant la formation des formes bioactives. Si les mutants de biosynthèse sont nains, un excès de l’hormone provoque croissance excessive et stérilité. Ainsi, les plantes ont développé des mécanismes efficaces leur permettant de maintenir une concentration optimale de GA bioactives. Un niveau supplémentaire de régulation peut être constitué par une séparation spatiale de la biosynthèse dans diffé
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16

Saint, Germain Alexandre de. "Vers une meilleure compréhension du mode d’action des strigolactones et de leur interaction avec les autres hormones du développement." Thesis, Paris 11, 2012. http://www.theses.fr/2012PA112326/document.

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L'étude de la ramification chez le pois, à partir des mutants hyper-ramifiés ramosus (rms) a permis de mettre en évidence l'existence d'une nouvelle famille d'hormones végétales : les strigolactones, inhibant la ramification des plantes à graines. La découverte de cette hormone végétale ouvre de nouvelles pistes de recherche sur la biosynthèse et la perception de cette nouvelle hormone. Nous avons montré le rôle du gène PsBRC1, codant un facteur de transcription de type TCP et homologue du gène TEOSINTE BRANCHED1 du maïs, dans la voie de signalisation des strigolactones. L’étude de ce gène nou
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17

Aubert, Dominique. "Le rôle des gibbérellines dans la germination d'Arabidopsis thaliana : caractérisation de nouveaux gènes régulés par l'hormone." Université Joseph Fourier (Grenoble), 1995. http://www.theses.fr/1995GRE10106.

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Ce travail se place dans le cadre d'etudes sur les mecanismes moleculaires de regulation par les gibberellines (ga). Il a consiste en la recherche et l'etude de nouveaux genes dont l'expression est induite par les ga au cours de la germination des graines d'arabidopsis thaliana. La strategie utilisee repose sur le criblage differentiel d'une banque d'adnc. Ce crible moleculaire est base sur l'utilisation d'un inhibiteur de la biosynthese des ga qui, indirectement en bloquant la biosynthese des ga, inhibe l'expression des genes ga-regules. Les conditions d'inhibition specifique de la biosynthes
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18

Kedisso, Endale Gebre. "Manipulation of gibberellin biosynthesis for the control of plant height in Eragrostis tef for lodging resistance." Thesis, 2012. http://hdl.handle.net/2263/27680.

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Lodging is a key agronomic problem in E. tef. due to morpho-physiological features, such tall and slender phenotype of the plant. Gibberellins metabolic genes are key targets in the control of plant height. Plant growth regulators (PGRs) that inhibit GA biosynthesis are used to shorten stem length thereby increasing lodging resistance. E. tef responded to treatment with PGRs such as GA, chlormequat chloride (CCC) and paclobutrazol (PBZ). Both PGRs reduced E. tef plant height but CCC treatment did not affect grain yield. Stem diameter was not affected by PGR treatment and also not the poor tape
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19

Chu, Hong-Wen, and 朱宏文. "Cloning and Analysis of Genes Related to Gibberellin Biosynthesis in Phalaenopsis." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/20219741870397035920.

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碩士<br>國立臺灣大學<br>園藝學研究所<br>94<br>Abstract In order to understand the characteristics of gibberellin biosynthesis genes encoding GA 20-oxidase and GA 2-oxidase in Phalaenopsis, homologous DNA fragments from Arabidopsis thaliana were used as probes to screen Phalaenopsis cDNA library. Nucleotide sequence analysis revealed that pPhGA20ox-1-50 cDNA, designatedd as PhGA20ox1, was 1478 bp in length, encodes a polypeptide of 372 amino acid residues with a calculated molecular weight of 41.9 kD and isoelectric point 5.96. The deduced amino acid sequence of PhGA20ox1 contains conserved domain LPWKET, NY
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20

Saavedra, José Angel. "Physiological effects of an inhibitor of gibberellin biosynthesis, uniconazole, on apple trees and potato." 1991. http://catalog.hathitrust.org/api/volumes/oclc/27715102.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.
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21

Lin, Chun-Ju, and 林君如. "Cloning of GA 20-oxidase and GA 2-oxidase cNDA and Analysis of Gibberellin Biosynthesis under Heat Shock Treatment in Papaya (Carica papaya L.) Seeds." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/20237535675360944789.

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碩士<br>國立臺灣大學<br>園藝暨景觀學系<br>102<br>Seeds are the main propagules for papaya (Carica papaya L.), which exhibit physiological dormancy. Although the germination percentage was enhanced and the germination time was reduced via heat shock treatment, the underlying mechanism is still unrevealed. The germination ratio of 2 week-dry papaya seeds extraced from fully ripe ‘Tainung no. 2’ papaya was only 0-3% after imbibition in water for 16 days in dark at 26℃; however, the ratio increased to 44±4%% and 67±5%, respectively, after immersion in water with 34℃ for 3 h and 36℃ for 5 h. The content of GA4
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