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 14 of 14 for “"Sessile organisms"”.
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Sex Allocation in the Caribbean Coral, <em>Porites astreoides</em> (Lamarck)
… mechanism of enhancing fertilization success in sessile organisms, but may also be advantageous because allocation to male and female function can be manipulated to maximize fitness when energy availability limits reproduction. Sex allocation theory has been primarily developed in plants, but may …
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Inducible Chemical Defenses in Temperate Reef Sponges of the South Atlantic Bight, U.S.A.
<p>Sessile organisms employing inducible defenses may receive protection from consumers while simultaneously minimizing the metabolic costs of maintaining these defenses. To investigate if reef sponges in the South Atlantic Bight employ inducible chemical defenses, I tested two predictions with …
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Interfacing living plants with nanomaterials for in planta sensing and plant biotechnology applications
… energy from sunlight and photosynthesis. As sessile organisms, they have evolved complex internal and inter-organism signaling pathways with distinct structures to thrive in ever-changing and at times unpredictable conditions. While humans have used plants as a source of food and raw …
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The Integration of Metabolite and Hormone Signalling Drives Seedling Development
… other environmental stimuli are also in flux. As sessile organisms in an ever-changing environment, plants must integrate signals from multiple pathways in order to promote the appropriate developmental responses. To uncover pathways that interact with sugars during seedling development, a …
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Mechanisms of Enzyme Neofunctionalization in Plant Specialized Metabolism
Plants, as sessile organisms, have evolved a plethora of secondary metabolites, along with highly specialized enzymes and unique metabolic pathways that support their biosynthesis. To date, approximately one-third of all existing pharmaceuticals are of plant origin. However, only a fraction of …
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The Arabidopsis thaliana Heat Shock Transcription Factor A1b Transcriptional Regulatory Network
Plants as sessile organisms have adapted highly sophisticated cellular processes to cope with environmental stress conditions, which include the initiation of complex transcriptional regulatory circuits. The heat shock transcription factors (HSFs) have been shown to be central regulators of plant …
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Dissection of Drought Responses in Arabidopsis
Plants as sessile organisms are susceptible to many environmental stresses such as drought, and salinity. They have therefore evolved mechanisms to acclimate and tolerate environmental stresses. Knowledge of the molecular aspects of abiotic stress gleaned from extensive studies in Arabidopsis has …
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Pathways of Transport of Microcystin-LR from Microcystis aergonisa to the Benthic Environment
… be bioindicators of contaminants, since they are sessile organisms that are filter feeders and deposit feed from sediment bottoms. To current knowledge, there is no mandated CHAB monitoring in California, which is important to predict or mitigate future blooms. The results of this paper indicate …
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DNA Damage responses in plant stem cells
Plants are sessile organisms that cannot escape environmental hazards, which induce DNA damage and cause mutations. Plants are also subject to DNA damage caused by endogenous processes such as transposon movement. Plant stem cell populations in particular must be protected from genotoxicity, as …
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Investigating the role of epigenetics in rapid adaptation to stress in Arabidopsis thaliana and Sorghum bicolor
Plants are sessile organisms and have developed varied mechanisms to tolerate stress. One such mechanism is DNA methylation, which plays a vital role within and across generational stress adaptation. To understand the role of DNA methylation in transgenerational stress adaptation, we exposed …
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The Impact of Iron Deficiency on Plant-Oomycete Interactions
Plants are sessile organisms adapted to cope with dynamic changes in their environment. Abiotic stresses, such as heat, drought, or nutrient deficiency must be overcome simultaneously with biotic threats such as pathogens and herbivores. Oomycete pathogens represent a significant threat to global …
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In defence of flowers: The ecology and biochemistry of a chemical defence, cyanogenesis, in Proteaceae
As sessile organisms, plants produce a remarkable diversity of chemicals to defend their tissues against herbivory. The large body of research into plant defences has primarily focused on plant-herbivore interactions and foliar defences, whereas floral chemical defences have received little …
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The Proteomic Responses of Gill Tissue in Tidally and Subtidally-Acclimated Mussel Congeners (Mytilus trossulus and Mytilus galloprovincialis) to Acute Aerial-Emersion Hypoxia
… or hypoxic conditions and desiccation stress. Sessile organisms such as marine mussels of the genus <em>Mytilus</em>, are an ideal study species for studying physiological tolerance at the environmental extremes of the intertidal habitat. In particular, <em>M. trossulus</em> and <em>M. …
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Native And Invasive Competitors Of The Eastern Oyster Crassostrea Virginica In Mosquito Lagoon, Florida
… in Mosquito Lagoon, 2) determine if the sessile species recruiting to oyster shells have changed over time, 3) determine how the dominant competitors, barnacles, affect oyster settlement, growth and survival, and 4) determine if oyster or barnacle larvae are better able to settle in …