Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 66 for “"Phytohormone"”.
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Zellteilungsregulation meristematischer Wurzelzellen (Tabak BY-2) durch Phytohormone und Zucker
Die Phytohormone Cytokinin und Auxin sind essentiell für die Zellteilungsaktivität in meristematischen Geweben. Trotz ihrer zentralen Bedeutung im pflanzlichen Zellzyklus, ist über deren Bedeutung und Wirksamkeit auf molekularer Ebene bisher nur wenig bekannt. Einige Untersuchungen deuten darauf …
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Circadian regulation and phytohormone responses of cytochrome P450 monooxygenase genes in Arabidopsis
… circadian rhythms of P450 genes under different phytohormone treatments including methyl jasmonate (MeJ), salicylic acid (SA), abscisic acid (ABA) and indole-3-acetic acid (IAA). My analysis of transcript profiles of seedlings treated with individual hormones indicated the responses of many P450 …
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Ethylene response and phytohormone-mediated regulation of gene expression in Komagataeibacter xylinus ATCC 53582
… bacterium that responds to and synthesizes phytohormones. This thesis elaborates on the ecophysiology of K. xylinus. Responses to indole-3-acetic acid (IAA), abscisic acid (ABA) and ethylene, produced in situ from ethephon, were of particular focus. The effect of these phytohormones on K. …
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Engineering and deploying FRET-based biosensors to illuminate cellular phytohormone dynamics coordinating environmental stress responses
Synthesised in plants in small quantities, phytohormones are naturally occurring chemical messengers that play critical roles in regulating plant growth and development as well as triggering responses to external stimuli. The precise regulation of phytohormone biosynthesis, catabolism and transport …
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Global and targeted proteomics in Arabidopsis thaliana: A study of secondary metabolism and phytohormone signaling
… information related to secondary metabolism, phytohormone signaling, and the status of proteomics in plants. In Chapter 2 and Appendix A, we establish the methodology to apply traditional and DiGE-based 2D-GE strategies to global proteomics in Arabidopsis. Our results suggest that while 2D-GE …
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Characterization of a carbon source-dependent, phytohormone-responsive, free methionine-(R)-sulfoxide reductase from Komagataeibacter hansenii
… and stress defense. Therefore, MsrC is both phytohormone and oxidative stress responsive, coordinating cellular functions such as growth and BC production.
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Phytoextraction of Lead from Contaminated Urban Soils by Panicum virgatum Enhanced with Phytohormone, EDTA, Benomyl, and Citric Acid Application
… benomyl, chelates (EDTA and citric acid), and phytohormones for phytoextraction of Pb from contaminated urban soils in Atlanta, GA. EDTA is often regarded as the most effective chelate, but has potential problems associated with its use due to long persistence time in soil and possible Pb …
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Toxizität und Gentoxizität von Phytohormonen und deren Metaboliten
Phytohormone, insbesondere solche mit östrogenem Potential werden heute vermehrt in der postklimakterischen Hormonersatztherapie als natürliche Alternative zu Designeröstrogenen eingesetzt, da sie vermutlich ein besseres Wirkungs-Nebenwirkungsprofil besitzten. Mengenmäßig am bedeutensten sind die …
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Investigating the evolution of cytochromes P450 involved in GA biosynthesis
… diphosphate synthase is required for gibberellin phytohormone biosynthesis. This has provided the basis for evolution of a functionally diverse enzymatic family. A bifunctional diterpene synthase was characterized from the lycophyte Selaginella moellendorffii . The structure of its product, …
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Improving biomass of the marine microalga Nannochloropsis oculata by chemical elicitation
… (e.g., lipids), but supplementation with phytohormones is another viable method for promoting specialised metabolite accumulation. The eustigmatophyte Nannochloropsis oculata, an industrially used species, was cultured autotrophically in the presence of methyl jasmonate (MJ) and salicylic …
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Elucidating essential roles of oomycee effector proteins in immune suppression and in targeting hormonal pathways in the host plant
… (JAZ) proteins that repressed responses to the phytohormone jasmonic acid (JA). This manipulation activates a regulatory cascade that reduces accumulation of a second phytohormone, salicylic acid (SA) and thereby attenuates immunity. This virulence mechanism is functionally equivalent to but …
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Einfluss von Estradiol, Genistein, Equol und Resveratrol auf verschiedene östrogensensitive Organe und Parameter der ovariektomierten Maus
… geführt. Im Zuge dessen sind Phytohormone ins Zentrum des Interesses gerückt, da sie als potentielle SERMs imponieren. Um diese Hypothese zu überprüfen, wurden in den letzten Jahrzehnten multiple Studien zur anti-/östrogenen Wirkung verschiedenster Substanzen am, seit 2001 von …
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Wechselwirkung zwischen Schwarzerlen und Erlenblattkäfer: Signaltransfer zwischen Bäumen und induzierte Resistenz
… von A. glutinosa sowie die Beteiligung endogener Phytohormone an der pflanzlichen Abwehr. (II.) Untersuchung einer Resistenzinduktion von ungeschädigten Bäumen in der Nachbarschaft geschädigter Bäume. (III.) Duftinduzierte Veränderungen im Blattgewebe von A. glutinosa. Die Untersuchungen der …
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Isolation and molecular characterisation of two Pseudomonas sp. ACC deaminase genes
The phytohormone ethylene is essential to many plant developmental processes, of which the control of climacteric fruit ripening is among the best characterised. However this hormone eventually causes fruit rotting which results in a non-marketable product. One approach to reduce ethylene synthesis …
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Impacts of climate change on herbivore induced plant signaling and defenses
… The effect of elevated CO2 exposure on phytohormone signaling was consistent with previous studies. Exposure to mild drought stimulated the induction of the JA/ET signaling pathways but had no impact on nutritional components. However, elevated CO2 exposure in combination with drought …
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KINETIC ANALYSIS OF AUXIN-INDUCED TRANSCRIPTION FACTOR NETWORKS CONTROLLING LATERAL ROOT DEVELOPMENT IN ARABIDOPSIS THALIANA
Auxin is a phytohormone that regulates lateral root development through complex transcriptional networks. An 8-timepoint microarray of roots treated with indole-3-acetic acid (IAA), the major form of auxin, was utilized to identify the transcriptome wide kinetics of auxin response. This microarray …
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Identification and characterization of signal components in early ABA signaling in Arabidopsis
<p>The phytohormone abscisic acid (ABA) regulates growth, development, and response to abiotic stress in plants. The core ABA signaling has three key components: ABA receptors PYRABACTIN RESISTANCE 1 and PYR1-Like protein (PYR1/PYLs), type 2C protein phosphatases (PP2Cs) and SNF1- related protein …
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Identification de potentiels transporteurs d’acides aminés impliqués dans la défense contre les pathogènes d’Arabidopsis thaliana
… de la plante activée par acide pipécolique, une phytohormone dérivée de deux acides aminés.
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Enhancing Economic and Environmental Value in Soybean Production through Value-Added Innovation
… These SNPs were linked to genes involved in phytohormone-mediated stress responses and offer potential targets for breeding climate-resilient varieties. Second, laboratory incubation studies with soils from 11 Virginia agricultural fields demonstrated moisture-dependent greenhouse gas …
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Symbiotic Associations and Pathogenic Potential of Vibrios In the North Inlet Estuary
… J. roemerianus rhizoplanes; to synthesize the phytohormone indole-3 acetic acid via the indole-3-acetamide pathway was elucidated and quantified. An extensive study of the density and biogeography of Vibrionaceae in sediment, burrow and water microniches was conducted and a collection of 186 …
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