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Dissertations / Theses on the topic 'Whole plants'

Author: Grafiati

Published: 11 March 2023

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1

Chaidir, Nadia. "Whole-genome comparative promoter sequence analysis in plants." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=123303.

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Large-scale genome-wide comparative analyses are now made possible by the increasing number of publicly available high-quality genome sequence data for numerous plant species. To understand the mechanisms of transcriptional regulation, computational analysis tools were used to find overrepresented and conserved DNA sequences, i.e. cis-regulatory elements. Datasets used as positive input for computational identification of regulatory regions commonly include promoters of co-regulated genes or promoters of orthologous genes (Wang and Stormo, 2003).We discovered de novo motif using two approaches

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2

Montagu, Kelvin D. "Whole plant response to soil compaction : from field practices to mechanisms /." View thesis View thesis, 1995. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030522.092251/index.html.

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3

Kunkle, Justin Michael. "Whole-plant resource economies and associated morphological and physiological traits towards a mechanistic understanding of plant responses to resource variation /." Diss., Connect to online resource - MSU authorized users, 2008.

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4

Vorster, Barend Juan. "Using whole genome comparison to detect sequence similarities between plants and microbes." Electronic thesis, 2007. http://upetd.up.ac.za/thesis/available/etd-01192009-142048.

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5

Montagu, Kelvin D. "Whole plant response to soil compaction : from field practices to mechanisms." Thesis, View thesis View thesis, 1995. http://handle.uws.edu.au:8081/1959.7/433.

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This thesis examines the growth response and inter-relationships between shoots and roots of plants grown in compact soil. In the field, two topsoil and two subsoil conditions were created with five vegetable crops sequentially grown. Between 6 and 12% of the root system grew in the compact subsoil, which had a soil strength of 3.1 c.f. 1.9 MPa in the loosened subsoil. Both the root length density (Lv) and the specific root length were lower in the compact subsoil (80% and 30%, respectively). This had no effect on shoot growth when water and nutrients were well supplied. Compensatory root grow

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Montagu, Kelvin D., of Western Sydney Hawkesbury University, Faculty of Agriculture and Horticulture, and School of Horticulture. "Whole plant response to soil compaction : from field practices to mechanisms." THESIS_FAH_HOR_Montagu_K.xml, 1995. http://handle.uws.edu.au:8081/1959.7/433.

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This thesis examines the growth response and inter-relationships between shoots and roots of plants grown in compact soil. In the field, two topsoil and two subsoil conditions were created with five vegetable crops sequentially grown. Between 6 and 12% of the root system grew in the compact subsoil, which had a soil strength of 3.1 c.f. 1.9 MPa in the loosened subsoil. Both the root length density (Lv) and the specific root length were lower in the compact subsoil (80% and 30%, respectively). This had no effect on shoot growth when water and nutrients were well supplied. Compensatory root grow

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7

Moncrieff, Glenn R. "The demographic impacts of browsing on woody plants in savannas : from individual branches to whole populations." Master's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/11501.

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Includes bibliographical references (p. 121-131).<br>Browsing ungulates can potentially have drastic impacts on vegetation patterns. This is particularly true in African savannas where many large browsers persist at high densities. Most of the theory and models outlining mechanisms of impact on plants and predicting responses are framed in terms of biomass impacts and responses. However, for trees in African savannas, fitness is more closely linked to height than above ground biomass. I evaluate the demographic impacts of browsing, making explicit contrasts with impacts on biomass. The results

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8

England, Robert A. "A computer-controlled system for measuring rates of uptake of potassium, nitrate and phosphate by whole plants." Thesis, University of Leeds, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293864.

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9

Ma, Cunxian. "Tentative Identification of Hydroxylated 2,2',3,5',6-pentachlorobiphenyl Metabolites in Whole Poplar Plants by a Combination of Chromatographic and Spectrometry Techniques." Thesis, University of Iowa, 2014. https://ir.uiowa.edu/etd/4691.

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2,2',3,5',6-pentachlorobiphenyl (PCB95) is a chiral congener of the persistent organic pollutants (POPs) family of PCBs. It has been shown that chiral PCBs can be enantioselectively transformed into hydroxylated metabolites by cytochrome P450 in animals. Previous studies in our group suggested that PCB 95 can be enantioselectively translocated and metabolized in whole poplar plants. In this work, healthy whole poplar plants were hydroponically exposed to PCB95 for 30 days. Two unknown OH-PCB95 metabolites were detected in the roots by HPLC-MS. Different chromatographic and spectrometry techniq

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10

Ray, Jonathan Paul. "A study of endogenous cytokinins and abscisic acid in whole plants of Phaseolus vulgaris L. during deficits in soil water." Thesis, University of Leeds, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.237736.

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11

Chen, Eric Chun-Hung. "Fractionation Resistance of Duplicate Genes Following Whole Genome Duplication in Plants as a Function of Gene Ontology Category and Expression Level." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32789.

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With the proliferation of plant genomes being sequenced, assembled, and annotated, duplicate gene loss from whole genome duplication events, also known in plants as frac- tionation, has shown to have a different pattern from the classic gene duplication models described by Ohno in 1970. Models proposed more recently, the Gene Balance and Gene Dosage hypotheses, try to model this pattern. These models, however, disagree with each other on the relative importance of gene function and gene expression. In this thesis we explore the effects of gene function and gene expression on duplicate gene los

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12

Osode, Augustina Nwabuje. "Assessment of the prevalence of virulent Eschericia coli strains in the final effluents of wastewater treatment plants in the Eastern Cape Province of South Africa." Thesis, University of Fort Hare, 2010. http://hdl.handle.net/10353/d1001062.

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Escherichia coli (E. coli) is a common inhabitant of surface waters in the developed and developing worlds. The majority of E. coli cells present in water are not particularly pathogenic to humans; however, there are some present in small proportion that possess virulence genes that allow them to colonize the digestive tract. Pathogenic E. coli causes acute and chronic diarrheal diseases, especially among children in developing countries and in travelers in these locales. The present study, conducted between August 2007 and July 2008, investigated the prevalence and distribution of virulent E.

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13

Nordstedt, Nathan P. "Isolation and characterization of novel bacterial strains to alleviate abiotic stress in greenhouse ornamental crops." The Ohio State University, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1617740819791342.

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14

Badela, Andiswa Unathi. "Prevalence and pathogenicity of vibrios in treated final effluents of selected wastewater treatment plants in the Amathole District Municipality of Eastern Cape Province of South Africa." Thesis, University of Fort Hare, 2014. http://hdl.handle.net/10353/d1019774.

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Waterborne diarrhoeal infections continue to be a major health setback in developing countries, especially in rural areas which lack adequate supply of portable water and sanitation facilities. Globally, waterborne diarrhoeal infections occur with an estimated mortality rate of 10–25 million deaths per year, 95% of which are children under the age of 5 years. The Vibrio species is one of the major groups of enteric pathogens that are responsible for diarrhoeal infections. Many strains of these bacterial species continue to cause epidemics of diarrhoea throughout the world. In this study, the p

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Seti, Nozuko Zukiswa. "Prevalence of pathogenic Escherichia coli strains in the final effluents of four wastewater treatment plants in the Eastern Cape Province of South Africa." Thesis, University of Fort Hare, 2014. http://hdl.handle.net/10353/d1019808.

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Water is an essential need that stimulates health and well being. Increase in population size and urbanization negatively affect water resources due to high demands of effluent outputs. Wastewater is an important reservoir for Escherichia coli and can present significant acute toxicity if released into receiving water sources without being adequately treated. E. coli is used as indicator organism for the detection of faecal contamination. These strains have been considered to be one of the primary causes of diarrhoeal infections worldwide. The present study was conducted between September 2012

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Ajibade, Adefisoye Martins. "Assessment of the prevalence of faecal coliforms and Escherichia coli o157:h7 in the final effluents of two wastewater treatment plants in Amahlathi Local Municipality of Eastern Cape Province, South Africa." Thesis, University of Fort Hare, 2014. http://hdl.handle.net/10353/d1016166.

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The production of final effluents that meet discharged requirements and guidelines remain a major challenge particularly in the developing world with the resultant problem of surface water pollution. This study assessed the physicochemical and microbiological qualities of two wastewater treatment works in the Eastern Cape Province of South Africa in terms of the prevalence of faecal coliforms and Escherichia coli O157:H7 over a five month period. All physicochemical and microbiological analyses were carried out using standard methods. Data were collected in triplicates and analysed statistical

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Gcilitshana, Onele. "Quality indices of the final effluents of two sub-urban-based wastewater treatment plants in Amathole District Municipality in the Eastern Cape Province of South Africa." Thesis, University of Fort Hare, 2014. http://hdl.handle.net/10353/d1019816.

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Worldwide, water reuse is promoted as an alternative for water scarcity, however, wastewater effluents have been reported as possible contaminants to surface water. The failure of some wastewater treatment processes to completely remove organic matter and some pathogenic microorganisms allows them to initiate infections. This manifests more in communities where surface water is used directly for drinking. To assess water quality, bacteria alone cannot be used as it may be absent in virus-contaminated water. This study was carried out to assess the quality of two wastewater treatment plant effl

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18

Chew, Yin Hoon. "Multi-scale whole-plant model of Arabidopsis growth to flowering." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/8008.

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In this study, theoretical and experimental approaches were combined, using Arabidopsis as the studied species. The multi-scale model incorporates the following, existing sub-models: a phenology model that can predict the flowering time of plants grown in the field, a gene circuit of the circadian clock network that regulates flowering through the photoperiod pathway, a process-based model describing carbon assimilation and resource partitioning, and a functional-structural module that determines shoot structure for light interception and root growth. First, the phenology model was examined on

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19

Pepin, Steeve. "Stomatal control of whole-plant photosynthesis and transpiration in conifer seedlings." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ36648.pdf.

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20

Mirfenderesgi, Golnazalsadat. "Development of a Novel Hydrodynamic Approach for Modeling Whole-plant Transpiration." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1502375927541919.

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21

Carter, Jacob. "Tamarix ramosissima whole plant and leaf level physiological response to increasing salinity." Thesis, Kansas State University, 2010. http://hdl.handle.net/2097/4379.

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Master of Science<br>Department of Biology<br>Jesse B. Nippert<br>In 1902, President Theodore Roosevelt signed and enacted the Reclamation Act, which would fundamentally alter the lowland hydrology of the arid southwest over the next century. Flow regulations, groundwater pumping, damming, and river channel changes have led to decreases in water table heights and periodic overbank flooding, and subsequently, increased soil salinity in the arid Southwest. During this period, native riparian tree species have declined significantly and an invasive tree species, Tamarix ramosissima, has increased

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22

Scott, Drew Austin. "RECOVERY OF WHOLE SOIL CONDITIONS THROUGH RESTORATION FROM AGRICULTURE AND ITS ROLE IN MEDIATING PLANT-PLANT COMPETITION." OpenSIUC, 2015. https://opensiuc.lib.siu.edu/theses/1826.

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The tallgrass prairie has been severely reduced in size, making restoration important to maintain communities and functions of this ecosystem. A chronosequence approach was used to determine recovery of physical and biological soil properties. The recovery models of soil properties provided information to explain the variation in total C stock of the whole soil. Recovery models also provided information to design a competition experiment based on variation in whole soil conditions with land use history. The filter framework hypothesis is a useful concept for examining tallgrass prairie restora

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23

Mbah, Jonathan Ikechukwu. "Pretreatment and Hydrolysis of Whole-plant Corn (WPC) for the Bioproduction of Ethanol." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1577814083023458.

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24

Mott, Jennifer Baines. "Putting the pieces together: the parts and the whole of student housing, Lexington, Virginia." Thesis, Virginia Polytechnic Institute and State University, 1992. http://hdl.handle.net/10919/53331.

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One of the most daunting challenges an architect faces in the design process is making harmony of the myriad parts that make up a building. A small student apartment and stable building for an equestrian center was the subject of an investigation into the extent of the architect's mastery of a project. The parts and assemblies of the structure were studied in detail. This investigation showed that a building's beauty must run more than just "skin deep," and that an architect, in order to have a successful project, must consider even the most minute parts of the building, exercising as much des

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25

Sindhu, K. "In vitro selection and whole-plant studies of salt and drought tolerance in Elettaria cardamomum." Thesis, Liverpool John Moores University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337854.

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26

Chow, Yit Lai. "Caenorhabditis elegans as a whole organism screening system for isoquinoline alkaloid bioactivities." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/188834.

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27

Kolkailah, Naiyerah F. "Genes Encoding Flower- and Root-Specific Functions are More Resistant to Fractionation than Globally Expressed Genes in Brassica rapa." DigitalCommons@CalPoly, 2016. https://digitalcommons.calpoly.edu/theses/1586.

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Like many angiosperms, Brassica rapa underwent several rounds of whole genome duplication during its evolutionary history. Brassica rapa is particularly valuable for studying genome evolution because it also experienced whole genome triplication shortly after it diverged from the common ancestor it shares with Arabidopsis thaliana about 17-20 million years ago. While many B. rapa genes appear resistant to paralog retention, close to 50% of B. rapa genes have retained multiple, paralogous loci for millions of years and appear to be multi-copy tolerant. Based on previous studies, gene function m

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28

Tiwari, Siddharth. "The Effects of European corn borer on whole-plant yieldand root knot nematode fitness in corn." Diss., Virginia Tech, 2007. http://hdl.handle.net/10919/27501.

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Field studies were conducted over two growing seasons to evaluate the effect of different levels of third instar European corn borer, Ostrinia nubilalis HÃ¼bner (Lepidoptera: Crambidae), on whole-plant dry matter in corn grown for silage. Mean (Â± SEM) whole-plant dry matter was significantly greater by 18.8% in uninfested control plants than in plants with an infestation level of 6 larvae/plant in 2004. Whole-plant dry matter in 2005 was significantly greater by 10.5% in control plants than in plants with an infestation level of 5 larvae/plant. Economic injury levels were calculated for ea

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29

Schwarzschild, Arthur C. "Growth Response of Eelgrass (Zostera marina L) to Root-Rhizome and Whole Plant Exposure to Atrazine." W&M ScholarWorks, 1993. https://scholarworks.wm.edu/etd/1539617661.

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30

Fox, Susan. "A Comparison of Chemical Composition & Fermentation Patterns of Alternative Silages to Whole Plant Corn Silage." TopSCHOLAR®, 1989. https://digitalcommons.wku.edu/theses/2346.

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A comparison of the relationship of fermentation to chemical composition was made for forages which were wilted and ensiled at 35 to 45 percent dry matter. Trial I consisted of three forages ensiled in October, 1981: interseeded soybeans and grain sorghum. whole plant corn with added anhydrous ammonia, and whole plant corn with shelled corn added at a rate of 150 kg/t of fresh forage. Trial II consisted of two forages ensiled in 1982: interseeded soybeans and pearlmillet, and wheat. Temperatures of fermentation were collected, and chemical composition during the first 25 days of fermentation a

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31

Moyo, Robin Mkhokheli. "Nutritional quality of maize ensiled with wet distillers grains for sheep." Diss., University of Pretoria, 2010. http://hdl.handle.net/2263/25900.

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Four trials were conducted to evaluate the effects of ensiling whole plant maize with wet distillers grains with solubles (WDGS) on its preservation and nutritive value. In the first study, WDGS was blended with whole maize plants at 0% (control), 10%, 20%, 30% and 40%, and ensiled for 120 days in bottle silos in a complete randomized design. Fermentation was monitored by taking samples at day 0, 7, 21, 42 and 120. Results showed a steady decrease (P<0.05) in dry matter (DM) concentration with increasing level of WDGS inclusion. Final silage pH was lowest (P<0.05) for the 40% WDGS treatment (p

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32

Kohrn, Brendan F. "An Efficient Pipeline for Assaying Whole-Genome Plastid Variation for Population Genetics and Phylogeography." PDXScholar, 2017. https://pdxscholar.library.pdx.edu/open_access_etds/4007.

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Tracking seed dispersal using traditional, direct measurement approaches is difficult and generally underestimates dispersal distances. Variation in chloroplast haplotypes (cpDNA) offers a way to trace past seed dispersal and to make inferences about factors contributing to present patterns of dispersal. Although cpDNA generally has low levels of intraspecific variation, this can be overcome by assaying the whole chloroplast genome. Whole-genome sequencing is more expensive, but resources can be conserved by pooling samples. Unfortunately, haplotype associations among SNPs are lost in pooled s

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33

Smeeton, Rachel Clair. "An evaluation of the effects of over-production of ABA on whole plant water use, growth and productivity." Thesis, University of Warwick, 2010. http://wrap.warwick.ac.uk/3928/.

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Predicted climate change and increasing global populations suggest that water will become an increasingly scarce and valuable commodity. Breeding plants which produce equivalent yields with reduced water input is therefore vital to sustain and increase crop production in the future. The phytohormone, abscisic acid (ABA), is important in controlling plant responses to water stress. It may be possible to improve water use efficiency (WUE) by genetically modifying tomato and other species to maintain elevated levels of ABA under optimal (unstressed) conditions, thereby manipulating an intrinsic s

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34

Eldfjell, Yrin. "Identifying Mitochondrial Genomes in Draft Whole-Genome Shotgun Assemblies of Six Gymnosperm Species." Thesis, Stockholms universitet, Matematiska institutionen, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-175410.

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Sequencing efforts for gymnosperm genomes typically focus on nuclear and chloroplast DNA, with only three complete mitochondrial genomes published as of 2017. The availability of additional mitochondrial genomes would aid biological and evolutionary understanding of gymnosperms. Identifying mtDNA from existing whole genome sequencing (WGS) data (i.e. contigs) negates the need for additional experimental work but previous classification methods show limitations in sensitivity or accuracy, particularly in difficult cases. In this thesis I present a classification pipeline based on (1) kmer proba

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35

Caruso, Alexandro. "Lichen diversity on stems, slash, and stumps in managed boreal forests : impact of whole-tree harvest /." Uppsala : Swedish University of Agricultural Sciences, 2008. http://diss-epsilon.slu.se/archive/00001675/.

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Thesis (doctoral)--Swedish University of Agricultural Sciences, 2008.<br>Includes reprints of four papers and manuscripts co-authored with others. Includes bibliographical references. Also partially available electronically via World Wide Web in PDF format; online version lacks reprints of four papers and manuscripts.

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36

Beckers, Veronique [Verfasser], and Christoph [Akademischer Betreuer] Wittmann. "Whole plant in vivo and in silico metabolic flux analysis : towards biotechnological application / Veronique Beckers ; Betreuer: Christoph Wittmann." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2016. http://d-nb.info/1164443720/34.

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Starck, Veronique [Verfasser], and Christoph [Akademischer Betreuer] Wittmann. "Whole plant in vivo and in silico metabolic flux analysis : towards biotechnological application / Veronique Beckers ; Betreuer: Christoph Wittmann." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:291-scidok-65574.

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38

Chen, Xiaohua. "Whole genome analysis of the plant growth-promoting Rhizobacteria Bacilllus amyloliquefaciens FZB42 with focus on its secondary metabolites." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2010. http://dx.doi.org/10.18452/16095.

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Bacillus amyloliquefaciens FZB42 besitzt einen beeindruckenden Effekt zur Verbesserung des Pflanzenwachstums. Um die Mechanismen, vor allem auf molekularer Ebene, zu verstehen, wurde das komplette Genom von FZB42 in dieser Arbeit sequenziert. Abwesenheit von der weit verbreiteten Phagen-verwandten Genen im Genom von B. subtilis 168, der in enger Verwandtschaft zum FZB42 steht, ist ein besonderes Merkmal. Dagegen enthält das Genom von FZB42 viele DNA-Inseln, in denen unikale Gene in FZB42 als Cluster gefunden wurden. Viele Gene, die möglicherweise zur Pflanzenwachstumsförderung beitragen, wurde

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39

Clouse, Jared William. "The Amaranth (Amaranthus Hypochondriacus) Genome: Genome, Transcriptome and Physical Map Assembly." BYU ScholarsArchive, 2015. https://scholarsarchive.byu.edu/etd/5916.

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Amaranthus hypochondriacus is an emerging pseudo-cereal native to the New World which has garnered increased attention in recent years due to its nutritional quality, in particular its seed protein, and more specifically its high levels of the essential amino acid lysine. It belongs to the Amaranthaceae family, is an ancient paleotetraploid that shows amphidiploid inheritance (2n=32), and has an estimated genome size of 466 Mb. Here we present a high-quality draft genome sequence of the grain amaranth A. hypochondriacus. The genome assembly consisted of 377 Mb in 3,518 scaffolds with an N50 of

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Snider, Danielle A. "The Gametocytocidal Activity of Whole-Plant Artemisia annua and Artemisia afra Tea-Based Therapies against Plasmodium falciparum in vitro." Digital WPI, 2019. https://digitalcommons.wpi.edu/etd-theses/1346.

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Malaria is one of the deadliest parasitic diseases worldwide, causing 219 million infections and 435 thousand deaths per year. As such, this mosquito-borne illness is a major target for global eradication efforts. One critical arm of the eradication strategy is chemotherapy. For a therapeutic to advance the eradication agenda, it must cure the patient of infection and eliminate transmission stage parasites (called gametocytes) from the blood, thereby breaking the cycle of transmission. Currently, first-line treatments against malaria infection consist of an artemisinin derivative in combinatio

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GRECCHI, ISABELLA. "EFFECTS OF HYBRID, HARVEST TIME AND HAIL DAMAGE ON CHEMICAL, NUTRITIONAL AND BIO-METHANE POTENTIAL PROPERTIES OF WHOLE PLANT CORN." Doctoral thesis, Università Cattolica del Sacro Cuore, 2016. http://hdl.handle.net/10280/11843.

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Il mais rappresenta una delle colture più diffuse nel Nord Italia. Negli ultimi anni si è assistito ad un notevole incremento della superficie a mais legato soprattutto all'uso dell'insilato di mais come substrato per la produzione di biogas. Per questo motivo è necessario avere il maggior numero di informazioni possibili per migliorare le performance della coltura. In letteratura ci sono molti studi che valutano l’impatto dell’ambiente e del management sulle caratteristiche chimico nutrizionali e sul potenziale metanigeno del foraggio di mais ma non ci sono lavori che considerano entrambi i

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GRECCHI, ISABELLA. "EFFECTS OF HYBRID, HARVEST TIME AND HAIL DAMAGE ON CHEMICAL, NUTRITIONAL AND BIO-METHANE POTENTIAL PROPERTIES OF WHOLE PLANT CORN." Doctoral thesis, Università Cattolica del Sacro Cuore, 2016. http://hdl.handle.net/10280/11843.

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Il mais rappresenta una delle colture più diffuse nel Nord Italia. Negli ultimi anni si è assistito ad un notevole incremento della superficie a mais legato soprattutto all'uso dell'insilato di mais come substrato per la produzione di biogas. Per questo motivo è necessario avere il maggior numero di informazioni possibili per migliorare le performance della coltura. In letteratura ci sono molti studi che valutano l’impatto dell’ambiente e del management sulle caratteristiche chimico nutrizionali e sul potenziale metanigeno del foraggio di mais ma non ci sono lavori che considerano entrambi i

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43

Sakala, Jakub. "The 'Whole-plant' concept in palaeobotany on the example of the Tertiary of northwestern Bohemia, Czech Republic with particular reference to fossil wood." Paris 6, 2004. http://www.theses.fr/2004PA066295.

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44

Wright, David Kenyon. "Effects of Clearcutting with Whole Tree Harvesting on Woody and Herbaceous Plant Diversity After 17-Years of Regrowth in a Southern Appalachian Forest." Thesis, Virginia Tech, 1997. http://hdl.handle.net/10919/46481.

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This study examines the effects of clearcut regeneration with whole-tree harvesting on plant diversity. Three approaches were used to study changes in species composition and structure: (1) forest level, (2) stand level, and (3) diversity indices. Within each approach the forest was stratified into three horizontal vegetative regions based upon height: herb (< 1 m), shrub (between 1 and 5 m), and tree (> 5 m). Between the pre-harvest and 17-year-old forest, the relative percent cover of 3 out of 45 herbaceous and 2 out of 34 woody species were found to be significantly different (df = 3; a

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45

Filho, Sérgio Gil de Toledo. "Avaliação da dinâmica da população de microrganismos em plantas de cana-de-açúcar IAC (93-3046)." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/11/11139/tde-22102010-083440/.

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O número das espécies microbianas presentes na forragem no ato da colheita é responsável pelo padrão de fermentação da silagem, sendo que o número de unidades formadoras de colônia (ufc) é alterado ao longo do ciclo da cultura e das condições ambientais, e esse fato, influencia fortemente a eficácia de aditivos utilizados no processo. Neste contexto, três experimentos foram conduzidos a fim de caracterizar a população microbiana em plantas de cana-de-açúcar. No primeiro experimento foi caracterizada a população microbiana em plantas de cana-de-açúcar por meio da técnica de plaqueamento. Os tra

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Fataftah, Nazeer Verfasser], Klaus [Akademischer Betreuer] Humbeck, Nicolaus von [Akademischer Betreuer] [Wirén, and Per L. [Akademischer Betreuer] Gregersen. "A wider perspective on the barley leaf senescence connecting whole plant development and nitrogen availability / Nazeer Fataftah ; Klaus Humbeck, Nicolaus Wirén, Per L. Gregersen." Halle, 2016. http://d-nb.info/1123071462/34.

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Kinney, Jonathan P. "Controlling Phalaris arundinacea through the use of shade while promoting native species recruitment in a wet meadow." Youngstown State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1313685720.

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Rosvall, Ola. "Enhancing gain from long-term forest tree breeding while conserving genetic diversity /." Umeå : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1999. http://epsilon.slu.se/avh/1999/91-576-5643-6.pdf.

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Vorster, Barend Juan. "Using whole genome comparison to detect sequence similarities between plants and microbes." Thesis, 2008. http://hdl.handle.net/2263/24171.

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With an increasing amount of whole genome sequence data becoming available on a daily basis we have an opportunity to study the interactions and dynamics of different organisms on a whole genome level. In the past, reports of horizontal gene transfer have focused mainly on the identification of single genes that show distorted phylogenetic profiles to that of the organism it was isolated from. This study firstly did whole genome comparisons between the rice nuclear and plastid genomes to determine the level and dynamics gene transfer and insertion of the chloroplast ad mitochondrial genomes in

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Meeson, NM. "Ants, plants and biodiversity surrogates in Tasmanian Eucalypt forests." Thesis, 2006. https://eprints.utas.edu.au/17356/1/whole-meeson-thesis.pdf.pdf.

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The forest reserve system in the state of Tasmania, Australia, is based on mapping units classified largely according to vegetation characteristics discernible from aerial photographs. However, the validity of vegetationbased surrogates for conserving invertebrate biodiversity has been insufficiently tested. While ant assemblages have been shown to vary with extr

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