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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Chemical constituents of plants native to Venda.

Mashimbye, Mahlori Jeffrey. January 1993 (has links)
Abstract available in pdf file.
12

Plant sterol metabolism with emphasis on glycoalkaloid biosynthesis in potato /

Arnqvist, Lisa, January 2007 (has links) (PDF)
Diss. (sammanfattning) Uppsala : Sveriges lantbruksuniv., 2007. / Härtill 4 uppsatser.
13

Chemical investigations of marine filamentous and zoosporic fungi and studies in marine microbial chemical ecology /

Jenkins, Kelly Matthew, January 1998 (has links)
Thesis (Ph. D.)--University of California, San Diego, 1998. / Vita. Includes bibliographical references (p. 169-179).
14

Plant-herbivore interaction of ethylene- insensitive petunias and western flower thrips Frankliniella occidentalis (Pergande)

Kuniyoshi, Claudia H. January 2013 (has links)
No description available.
15

Biomimetic apporaches to the synthesis of polyketide derived marine natural products (-)-Maurenone and the spiculoic acids /

Crossman, Julia Stephanie, January 2007 (has links)
Thesis (Ph.D.)--Flinders University, Dept. of Chemistry. / Typescript bound. Includes bibliographical references: (p. 360-369) Also available online.
16

Molecular probes for the evaluation of three isomerase enzyme mechanisms in secondary metabolism

Nasomjai, Pitak January 2010 (has links)
This thesis is focused on an investigation of the mechanisms of three enzymatically mediated carbon skeleton isomerisation reactions. Chapter 1 provides an overview of some representative examples of the carbon skeleton rearrangement reactions in enzymology. Chapter 2 describes the preparation and use of fluorolittorines to explore the mechanism of the rearrangement of the tropane alkaloid littorine to hyoscyamine which is a reaction mediated by the cytochrome P450 enzyme. Chapter 3 describes the synthesis of D-ribose-1-phosphonates and the cyclic phosphonates (phostone) that are candidate inhibitors of the enzymatic isomerisation of 5-fluoro-5-deoxy-ribose-1-phosphate (5-FDRP) to 5-fluoro-5-deoxy-ribulose-1-phosphate (5-FDRulP), an important step in fluorometabolite biosynthesis pathway in Streptomyces cattleya. Chapter 4 describes the synthesis of 5-hydroxy-3,4-dioxohexylphosphonate and [5-13C]-5-hydroxy-3,4-dioxohexylphosphonate. These compounds are proposed as candidates for the transition state of the retro-aldol/aldol mechanism of the enzymatic isomerisation of 1-deoxy-D-xylulose-5-phosphate (DXP) to 2-C-methylerythitol-phophate-2-phosphate (MEP) in the biosynthesis of isopentenyl pyrophosphate (IPP) and dimethylallyl pyrophosphate (DMAPP). The influence of pH on tautomerisation of [5-13C]-5-hydroxy-3,4-dioxohexylphosphonate is also described. Chapter 5 describes the general chemical and biochemical methodologies utilised in this research project.

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