Global ETD Search
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Showing 1 to 20 of 23 for “"adaptive plasticity"”.
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The Molecular Signatures of Adaptive Plasticity in Parasitic Nematodes
… of this project was to characterise the plasticity of IJ behaviour, and to investigate some of the associated molecular processes. There are two broad components: firstly, the identification of molecules (ascarosides) externally secreted by IJs and their effects on dispersal, and secondly …
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An Investigation of the Effect of Malathion on Adaptive Plasticity of Pseudacris sierra
… Chapter one reviews what is known about adaptive plasticity in response to predators, describes the physiological systems involved in such plasticity, and outlines the evolutionary consequences of adaptive plasticity. Chapter two describes a scientific experiment that investigates how …
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LEPTIN SIGNALING IN AN ANIMAL MODEL OF ANOREXIA NERVOSA: EVIDENCE FOR (MAL)ADAPTIVE PLASTICITY IN REWARD- AND COGNITIVE-RELATED BRAIN AREAS
L'Anoressia Nervosa (AN) è un disturbo psichiatrico caratterizzato da una volontaria restrizione alimentare e da una costante paura di ingrassare, le quali insieme ad un'intensa attività fisica, portano ad una rilevante perdita di peso corporeo. L'AN colpisce quasi l'1% della popolazione …
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Relationships between phenotype, diet, and individual specialization of threespine stickleback (Gasterosteus aculeatus) in Lake Mývatn, Iceland
… sites. Clear connection with sites may indicate adaptive plasticity or adaption. Stickleback were caught in Lake Mývatn in June and their head morphology, gill raker structure, gut length, and stomach content analyzed, and individual specialization calculated. The results showed that there was no …
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Long-Term Consequences of Early Eye Enucleation on Audiovisual Processing
… in changes in the remaining senses. Is the adaptive plasticity observed in the remaining intact senses also found in response to partial sensory deprivation specifically, the loss of one eye early in life? My dissertation examines evidence of adaptive plasticity following the loss of one eye …
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Gene Expression and Phenotype Response of <em>Drosophila melanogaster</em> to Selection.
<p>The evolution of phenotypic plasticity is currently a topic of paramount interest in a diverse field of sub-disciplines. Salience is placed by all fields in describing the interaction of selection and phenotypic plasticity and the consequence of this interaction more broadly on evolution. …
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Peptidazių iš Geobacillus thermoleovorans DSM 15325 kolagenolizinio aktyvumo analizė: M3 proteolizinių fermentų šeimos M3B pošeimio oligopeptidazės ir U32 proteolizinių fermentų šeimos peptidazės charakterizavimas /
… importance of collagenolytic potential for adaptive plasticity of bacteria. Determined M3 family M3B subfamily oligopeptidases, secreted by geobacilli, characteristics indicate oligopeptidases nutritional importance for bacteria during the adaption for environmental changes. Combination of …
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The collagenolytic activity analysis of Geobacillus thermoleovorans DSM 15325 peptidases: characterization of M3 proteolytic enzymes family M3B subfamily oligopeptidase and U32 proteolytic enzymes family peptidase /
… importance of collagenolytic potential for adaptive plasticity of bacteria. Determined M3 family M3B subfamily oligopeptidases, secreted by geobacilli, characteristics indicate oligopeptidases nutritional importance for bacteria during the adaption for environmental changes. Combination of …
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Mimicry and speciation in the parasitic finches of Africa
… new nest environment and that they do not show adaptive plasticity in begging calls or head movements. This poor survival occurs despite there being minimal differences in the diets each host species feeds their young. Finally, in Chapter 6, I carry out a comparative analysis on the evolution of …
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Biomarker Accessible and Chemically Addressable Mechanistic Subtypes of BRAF Melanoma
Genomic diversity and adaptive plasticity of melanoma tumors limit durable control with conventional and targeted therapies. Nevertheless, pathological activation of the ERK1/2 regulatory system is a linchpin tumorigenic mechanism associated with the majority of both primary and recurrent disease. …
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Environment-induced Phenotypic Plasticity in the Teeth of Hatchery and Wild Largemouth Bass, <i>Micropterus floridanus</i>
… phase of aquaculture could provide the necessary adaptive plasticity of hatchery-reared bass dentition
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Phenotypic Plasticity of Native and Invasive Cool-Season Grasses in Response to Frequency of Moisture Availability
<p>Phenotypic plasticity, the ability of an individual to alter its growth in response to environmental conditions, is an attribute that is considered a likely invader attribute, as it provides the opportunity to expand its ecological niche breadth. Adaptive phenotypic plasticity can affect not …
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Ecology and evolution of invasive maple tree species
… genotypes of A. negundo exhibited pre-adapted plasticity to non limiting resource conditions and genetic differentiation in growth, above-ground biomass and phenology relative to native conspecifics while life history traits were only environmentally controlled in A. platanoides. This …
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The Roles of Social Status, Maternal Stress, and Parental Investment in Modulation of Hypothalamic-Pituitary-Interrenal Axis Function in Teleost Fish
… levels of cortisol at 144 hpf, perhaps as an adaptive response to maternal stress experience. Finally, modulation of HPI axis function was explored as a mechanism underlying attenuation of the stress response during early paternal care in smallmouth bass (Micropterus dolomieu). In response to …
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Membrane-bound Matrix Metalloproteinases Influence Reactive Synaptogenesis Following Traumatic Brain Injury
… were compared in two TBI models, one exhibiting adaptive plasticity (unilateral entorhinal cortex lesion; UEC) and the other maladaptive plasticity (fluid percussion injury + bilateral EC lesions; TBI+BEC), targeting 2, 7, and 15d postinjury intervals. In adaptive UEC plasticity, membrane-bound …
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Mechanisms of Olfactory Plasticity in Caenorhabditis Elegans
… a phenomenon known as "experience-dependent plasticity". This ability to change is a crucial for survival, and how an organism achieves this adaptive plasticity is a question of much interest. Research in the field has yielded insight into how changes in connectivity within the brain can …
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Phenotypic plasticity in soybeans (glycine max (l.) merrill) associated with plant density and phenological stage at thinning
… (Glycine max L.) is reported to demonstrate plasticity responses when exposed to either supra or sub optimal plant density stress. However, it is not known whether determinate and indeterminate varieties respond the same and at what phenological stage a soybean plant is able to exhibit …
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Phenotypic plasticity in soybeans (glycine max (l.) merrill) associated with plant density and phenological stage at thinning
… (Glycine max L.) is reported to demonstrate plasticity responses when exposed to either supra or sub optimal plant density stress. However, it is not known whether determinate and indeterminate varieties respond the same and at what phenological stage a soybean plant is able to exhibit …
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Deciphering the chemistry of host-parasitic plants interactions using the UHPLC-q-TOF-MS and chemometrics
… observed in V. combreticola suggests a form of adaptive plasticity launched by these plants in response to photo-oxidative stress since they get exposed to excessive sunlight on the canopy of their host plants, especially in tropical regions. Moreover, the diverse CGA composition of these plants …
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A role for environmental epigenetics in the rapid diversification of East African cichlid fishes
Phenotypic plasticity via gene-environment interaction is a central feature of regulatory biology. By definition, phenotypic plasticity involves a change in gene regulation. These gene regulatory transitions are commonly mediated by an array of epigenetic mechanisms, which exert dynamic, …
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