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 216 for “"auxin"”.
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Auxin and the nodule
… to characterise the role of the plant hormone auxin in the development of nitrogen-fixing, indeterminate legume nodules. More specifically we want to know the timing of, and the processes responsible for, the auxin signaling induction detected upon inoculation of the root of Medicago truncatula …
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Characterisation of auxin and auxin-related genes in the response of Arabidopsis thaliana to salt stress
… tissue specific responses to NaCl. ‘Response to auxin’ was a highly enriched gene ontology term associated with genes that are significantly induced specifically in response to ionic stress, suggesting a potential role for this plant growth hormone in ionic stress tolerance. This hypothesis was …
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Agent Based Modelling of Auxin Transport Canalisation
The transport of the plant hormone auxin is central to many aspects of plant development. This thesis describes work developing agent-based simulations of auxin transport canalisation. Auxin transport canalisation is the dominant theory describing how auxin promotes its own transport through a …
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Synthetic Auxin Engineering: Building a Biofoundry Platform
… approach – has facilitated engineering of the auxin signaling pathway in a synthetic yeast system. Auxin is a phytohormone involved in nearly every aspect of plant growth and development, and this striking versatility designates it as a target for biotechnology development and a candidate for …
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Pleiotropy and epistasis in auxin signaling networks
… tissue-specific candidate genes within the auxin regulatory network in soybean shoot development. This method aims to minimize pleiotropy and off-target effects by utilizing expression analysis tissue-specificity score and principal component analysis. I primarily, focused on three pivotal …
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Characterization of Arabidopsis thaliana mutants defetive in auxin metabolism
Auxins are an important class of phytohormones that play a critical role in various aspects of plant growth and development such as cell elongation, cell division, apical dominance, tropisms, and fruit ripening. The most abundant naturally occurring auxin is indole-3-acetic acid (IAA). IAA is found …
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Characterization of the IBR5-PAD1 Interaction in Arabidopsis Auxin Response
… phosphatase, plays an important role in the auxin signaling pathway. Previous studies suggest that IBR5 negatively regulates Aux/IAA repressor protein degradation. This research identifies and characterizes a novel interaction between IBR5 and PAD1, a subunit of the 20S core of the …
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The role of auxin transport in the control of shoot branching
… play pivotal roles in regulating bud outgrowth. Auxin derived from the primary shoot apex and active branches inhibits bud outgrowth, whereas cytokinin promotes it. Strigolactones also inhibit bud outgrowth, by changing properties of the auxin transport network, increasing the competition between …
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Decoding the Transcriptional Specificity of Auxin Signaling: A Synthetic Biology Approach
Auxin is a central regulator of nearly all aspects of plant growth, development, and environmental response. Despite its broad roles, the mechanisms by which a single hormone elicits such diverse and context-specific transcriptional responses remain unclear. These responses are primarily mediated …
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Auxin coordinates cell division and cell fate specification during lateral root initiation
… et al., 2001). De signaal molecule in planten, auxine, is één van de belangrijkste regulatoren van zijwortelontwikkeling en is betrokken in alle stappen van dit ontwikkelingsproces (Blakely et al., 1988). Desalniettemin is er weinig geweten over de moleculaire mechanismen waarmee auxine …
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Characterisation of the Auxin Signalling Pathway in Vitis vinifera L. cv. Shiraz
Auxin is a key regulator of plant growth, mechanistically controlled by a finely tuned transcriptional system. The auxin signalling pathway consists of the transcription factors, auxin response factors (ARFs), the transcriptional repressors, auxin/indole-3-acetic acid (Aux/IAAs), and the transport …
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The role of strigolactone and auxin in the regulation of shoot branching
… I investigate the role of strigolactone and auxin in controlling bud growth dynamics and their effect on plant branching levels and development more generally. Firstly, I present a novel molecular mechanism for strigolactone perception, developed in collaboration with Prof. Ning Zheng’s …
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Metabolomic approaches to understanding the auxin and ethylene response in Arabidopsis roots
… the metabolite responses of Arabidopsis roots to auxin or ethylene. Crosstalk between these hormones regulates many important physiological processes in plants, including the initiation of lateral root formation and the response to gravity. These occur in part through alterations in the levels of …
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Exploring the role of auxin in phenotypic plasticity in Arabidopsis thaliana root development
Auxin is a plant hormone that positively regulates the initiation and emergence of lateral roots. In this study we used several approaches to reduce auxin transport moving either from the shoot toward the root apex or from the root tip toward the base and examined the effect of these treatments on …
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Characterization of the Arabidopsis thaliana Auxin F-Box Family Members AFB4 and AFB5
… process are influenced by the plant hormone auxin. Transcription factors involved in auxin response have been shown to be targets for ubiquitination and subsequent degradation. Recent work has identified a family of auxin receptors, TIR1, AFB1, AFB2 and AFB3, are key components of this …
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The role of auxin and ethylene in adventitious root formation in Arabidopsis and tomato
… root formation in these two species, while auxin has a similar stimulatory effect on adventitious root formation in both. Root excision increases both adventitious root formation and auxin transport. Additionally, local increases in auxin induced reporter expression after excision precede …
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