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Dissertations / Theses on the topic 'Terpenes – Metabolism'

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1

Floyd, N. C. "Initial stages in the metabolism of alpha-pinene by Pseudomonas fluorescens NCIMB 11671." Thesis, Cranfield University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.280784.

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2

Cai, Yingqi. "Lipogenic Proteins in Plants: Functional Homologues and Applications." Thesis, University of North Texas, 2018. https://digital.library.unt.edu/ark:/67531/metadc1404563/.

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Although cytoplasmic lipid droplets (LDs) are the major reserves for energy-dense neutral lipids in plants, the cellular mechanisms for packaging neutral lipids into LDs remain poorly understood. To gain insights into the cellular processes of neutral lipid accumulation and compartmentalization, a necessary step forward would be to characterize functional roles of lipogenic proteins that participate in the compartmentalization of neutral lipids in plant cells. In this study, the lipogenic proteins, Arabidopsis thaliana SEIPIN homologues and mouse (Mus Musculus) fat storage-inducing transmembra
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3

Hoppen, Carolina. "Efeitos do estresse biótico na expressão de terpenos em plantas: Varronia curassavica Jacq. and Pistacia palaestina Boiss." Universidade Tecnológica Federal do Paraná, 2018. http://repositorio.utfpr.edu.br/jspui/handle/1/3260.

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Conselho Nacional do Desenvolvimento Científico e Tecnológico (CNPq)<br>Os terpenos constituem a classe de produtos naturais com maior diversidade química e estrutural, estando associados ao metabolismo das plantas e às interações destas com outros organismos. Estes compostos, as enzimas que os sintetizam e as plantas que os produzem são amplamente estudados em diferentes aspectos. Para melhor compreensão da expressão de terpenos em plantas sob estresse biótico, as espécies Varronia curassavica e Pistacia palaestina foram estudadas neste trabalho. Folhas de V. curassavica contém óleo essencial
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4

Maróstica, Junior Mário Roberto 1980. "Biotransformação de terpenos para a produção de compostos de aroma e funcionais." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/256710.

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Orientador: Glaucia Maria Pastore<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos<br>Made available in DSpace on 2018-08-06T19:14:01Z (GMT). No. of bitstreams: 1 MarosticaJunior_MarioRoberto_D.pdf: 758713 bytes, checksum: a3f5c7bf4942f073b9a52b841245b3e6 (MD5) Previous issue date: 2006<br>Resumo: Este trabalho teve por objetivos o estudo da biotransformação de terpenos e avaliação de suas propriedades biológicas. A biotransformação de limoneno foi realizada por uma linhagem de Fusarium oxysporum cultivada em manipueira e transferida para meio min
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5

Pinheiro, Denise Maria. "Biotransformação de terpenos em compostos de aroma." [s.n.], 2004. http://repositorio.unicamp.br/jspui/handle/REPOSIP/256712.

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Orientador: Glaucia Maria Pastore<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos<br>Made available in DSpace on 2018-08-03T20:52:48Z (GMT). No. of bitstreams: 1 Pinheiro_DeniseMaria_D.pdf: 8292543 bytes, checksum: f388836a2d16e3e97cec519efcedbbcb (MD5) Previous issue date: 2004<br>Doutorado
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6

Sohrabi, Reza. "Biochemical and Functional Characterization of Induced Terpene Formation in Arabidopsis Roots." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/74938.

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Plants have evolved a variety of constitutive and induced chemical defense mechanisms against biotic stress. Emission of volatile compounds from plants facilitates interactions with both beneficial and pathogenic organisms. However, knowledge of the chemical defense in roots is still limited. In this study, we have examined the root-specific biosynthesis and function of volatile terpenes in the model plant Arabidopsis. When infected with the root rot pathogen Pythium irregulare, Arabidopsis roots release the acyclic C11-homoterpene (E)-4,8-dimethylnona-1,3,7-triene (DMNT), which is a common co
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7

Zhang, Jingyu. "Cell-type specificity and herbivore-induced responses of primary and terpene secondary metabolism in Arabidopsis roots." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/23742.

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Plants employ diverse defense mechanisms to combat attack by harmful organisms. For instance, plants produce constitutive physical barriers or use chemical compounds such as specialized secondary metabolites to resist herbivore or pathogen invasion. Considering the cost-efficiency and energy balance between defense, growth and reproduction, defense reactions in plants have to be regulated temporally and spatially. As more cost-efficient strategies, plants may induce their defense response only in the presence of the attacker or restrict constitutive defenses to specific tissues or cells. I
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8

Huh, Jung-Hyun. "Biochemical, Molecular and Functional Analysis of Volatile Terpene Formation in Arabidopsis Roots." Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/77151.

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Plants produce secondary (or specialized) metabolites to respond to a variety of environmental changes and threats. Especially, volatile compounds released by plants facilitate short and long distance interaction with both beneficial and harmful organisms. Comparatively little is known about the organization and role of specialized metabolism in root tissues. In this study, we have investigated the root-specific formation and function of volatile terpenes in the model plant Arabidopsis. As one objective, we have characterized the two root-specific terpene synthases, TPS22 and TPS25. Both en
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9

ZHUANG, XUN. "ENGINEERING NOVEL TERPENE PRODUCTION PLATFORMS IN THE YEAST SACCHAROMYCES CEREVISIAE." UKnowledge, 2013. http://uknowledge.uky.edu/pss_etds/17.

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The chemical diversity and biological activities of terpene and terpenoids have served in the development of new flavors, fragrances, medicines and pesticides. While terpenes are made predominantly by plants and microbes in small amounts and as components of complex mixtures, chemical synthesis of terpenes remains technically challenging, costly and inefficient. In this dissertation, methods to create new yeast lines possessing a dispensable mevalonate biosynthetic pathway wherein carbon flux can be diverted to build any chemical class of terpene product are described. The ability of this line
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10

Weisberg, Alexandra Jamie. "Investigations into the molecular evolution of plant terpene, alkaloid, and urushiol biosynthetic enzymes." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/64408.

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Plants produce a vast number of low-molecular-weight chemicals (so called secondary or specialized metabolites) that confer a selective advantage to the plant, such as defense against herbivory or protection from changing environmental conditions. Many of these specialized metabolites are used for their medicinal properties, as lead compounds in drug discovery, or to impart our food with different tastes and scents. These chemicals are produced by various pathways of enzyme-mediated reactions in plant cells. It is suspected that enzymes in plant specialized metabolism evolved from those in pri
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11

Muchlinski, Andrew Joseph. "Identification, Characterization, and Functional Analysis of Terpenoid Specialized Metabolism in Switchgrass (Panicum virgatum) and Carrot (Daucus carota)." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/102778.

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Plants produce a large number of specialized or secondary compounds that aid in their reproduction and protection against biotic and abiotic stress. In this work I investigated the metabolism and function of terpenes, the largest class of specialized metabolites, in switchgrass and carrot. Switchgrass (Panicum virgatum L.), a perennial C4 grass of the Tallgrass Prairie, represents an important species in natural and anthropogenic grasslands of North America. Its natural resilience to abiotic and biotic stress has made switchgrass a preferred bioenergy crop. I have investigated the metabolism o
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12

Vaughan, Martha Marie. "Molecular and Functional Characterization of Terpene Chemical Defense in Arabidopsis Roots in Interaction with the Herbivore Bradysia spp. (fungus gnat)." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/77974.

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Roots and leaves are integrated structural elements that together sustain plant growth and development. Insect herbivores pose a constant threat to both above- and belowground plant tissues. To ward off herbivorous insects, plants have developed different strategies such as direct and indirect chemical defense mechanisms. Research has primarily focused on visible aboveground interactions between plants and herbivores. Root-feeding insects, although often overlooked, play a major role in inducing physical and physiological changes in plants. However, little is known about how plants deploy chem
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13

Martinelli, Laure Marie Bernadette. "Étude de la biosynthèse des terpènes et de leur régulation chez Pelargonium x hybridum." Thesis, Lyon, 2020. http://www.theses.fr/2020LYSES010.

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Le genre Pelargonium fait partie de la famille des Geraniaceae et réunit plus de 280 espèces, ainsi que de nombreux hybrides et variétés sélectionnés depuis le 18e siècle. Ces accessions regroupent notamment de pélargoniums commercialisés en tant que plantes ornementales (comme les P. x hortorum) mais également des pélargoniums odorants (comme les P. x hybridum cv rosat) qui sont cultivés pour leur huile essentielle (HE). L’HE de P. rosat est stockée dans des structures glandulaires (trichomes glandulaires) présentes sur les feuilles et se compose principalement de mono- et sesqui-terpénoïdes.
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14

"Transcriptome profiling of two Arabidopsis Farnesyl diphosphate synthase mutants for understanding terpenoids metabolism." 2009. http://library.cuhk.edu.hk/record=b5894093.

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Yu, Pui Man.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2009.<br>Includes bibliographical references (leaves 68-78).<br>Abstracts in English and Chinese.<br>Acknowledgements --- p.iv<br>Abstract --- p.v<br>Table of Contents --- p.ix<br>List of Figures --- p.xii<br>List of Tables --- p.xiv<br>List of Abbreviations --- p.xv<br>Chapter Chapter 1. --- General Introduction --- p.1<br>Chapter Chapter 2. --- Literature Review --- p.5<br>Chapter 2.1 --- The importance of terpenoids --- p.5<br>Chapter 2.2 --- The difficulties in synthesizing terpenoids --- p.8<br>Chapter 2.3 --- St
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15

Lepule, Sello Presly. "Secondary metabolite profiles of Lippia Scaberrima sond. from gold mine tailings." 2011. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000751.

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