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 153 for “"Abiotic Stress"”.
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Epigenetic Responses of Arabidopsis to Abiotic Stress
… sublethal levels of one of four weed management stressors, glyphosate herbicide, trifloxysulfuron herbicide, mechanical clipping, and shading. To evaluate responses to these stressors we collected data on gene expression and regulation via epigenetic modification (methylation) and small RNA …
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Genetic Regulation of Maize and Sorghum under Abiotic Stress
… future, not only inhibiting grain yield but also stressing water resources. Thus, it is critical to breed for improved climate resilience in agronomic crops and understand the genetic mechanisms conferring adaptation to water-limited environments.
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Are Barley Dwarfing Genes Important in Tolerance to Abiotic Stress?
… were shown to confer resistance to salt stress in the model species Arabidopsis. In order to determine whether these findings could be translated from Arabidopsis to monocot crop species, GoF and loss of function (LoF) mutants of the barley DELLA orthologue, Sln1, were characterised and …
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Identification, Characterization, and Abiotic Stress Analysis of microRNAs in Nicotiana tabacum
… organogenesis, and response to environmental stresses. Based on the conservation of mature miRNA sequences, computational methods have been used to predict thousands of miRNAs in numerous plant species, such as soybean, maize, cotton, potato, rice, apple, and switchgrass. In this project, …
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EFFECTS OF ABIOTIC STRESS AND PREDATOR REFUGE ON TERRESTRIAL PREDATOR-PREY INTERACTIONS
… major goal of ecology has been to understand how abiotic stress modifies species interactions, including predation. In marine habitats, a well-supported hypothesis holds that stress reduces the importance of predation because predators are more vulnerable to stress than prey, but this hypothesis …
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New signalling network in plant abiotic stress discovered through a genetic approach
… mutants deregulated in the response to abiotic stresses has been isolated using an EMS-mutagenised population carrying the luciferase cDNA under the control of the RCI2A promoter. RCI2A gene is expressed after exposure to low temperatures, dehydration, high salinity, and the ectopic …
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THE EPITRANSCRIPTOMIC REGULATION OF STRESS: ROLE OF N6-METHYLADENOSINE IN ABIOTIC STRESS RESPONSE
… response pathways to various biotic and abiotic stresses. At the heart of plants’ response to stress is their ability to regulate appropriate gene expression, both transcriptionally and post-transcriptionally. Covalent modifications of ribonucleotides within the RNA molecules, also known …
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A metabolomics-based approach to study abiotic stress in <em>Lolium perenne</em>
… perennial ryegrass is not well adapted to abiotic stress conditions which are likely to occur in its natural environment. Some of the abiotic stress factors which have significant impacts on plant growth and development include water and nutrient availability. Therefore, this project set …
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AGRONOMIC AND ECO-PHYSIOLOGICAL RESPONSES OF BRASSICACEAE SUBJECTED TO BIOSTIMULANT TREATMENT AND ABIOTIC STRESS
… have demonstrated positive effects in resisting abiotic stress, such as drought, salinity, heat, and cold. Developing new biostimulant products involves a complex process involving several steps, including screening, investigating the mode of action, and efficacy validation. Determining the …
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Natural variation of Pinus pinaster metabolome in abiotic stress responses: modeling of omics data
El objetivo principal de esta tesis fue determinar los principales mecanismos de aclimatación al calor y la sequía en P. pinaster y su variación natural empleando un enfoque integrado de biología de sistemas. Para ello, aplicamos diferentes intensidades de estrés, orden de exposición al estrés y …
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Ecological Perspectives on Cannabis sativa Phytochemistry: Biotic Interactions and Abiotic Stress in Managed and Natural Systems
… water treatments over three growing seasons. Abiotic stressors altered both plant form and function: stressed plants were shorter, had reduced phytochemical diversity, and supported fewer arthropods. Can-nabidiol concentration was positively associated with arthropod richness, while high …
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Unraveling the roles of autophagy in proteome dynamics and energy metabolism in plants under abiotic stress
Abiotic stresses impose major constraints on plant growth and productivity by disrupting cellular homeostasis, energy metabolism, and resource allocation. These challenges are further intensified by climate change, which increases the frequency, duration, and severity of environmental stresses. …
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Use of Bioinformatics to Investigate Abiotic Stress in Arabidopsis and to Design Primers for Pathogen Detection
… was used to study the role of PLDα1 in drought stress in Arabidopsis. Second, a tool for designing and in-silico testing of primers for PCR-based pathogen detection will be discussed. Phospholipase D (PLD) has been implicated in a variety of stresses including osmotic stress and wounding. PLDα …
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Abiotic-Stress Application, Global Berry Proteome Profiling, and Cold-Stress Tolerance in Transformed Winegrape (Vitis vinifera L.).
… are moderately sensitive to salt and temperature stresses, whereas moderate water deficit stress results in minimal loss in berry yields, increased berry quality, and higher rates of winter survival of vines. The molecular mechanisms controlling both the desirable and undesirable effects of these …
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SALT EXPOSURE AND NITROGEN METABOLISM IN TOMATO (SOLANUM LYCOPERSICUM L.): IMPROVEMENT OF THE RESILIENCE TO ABIOTIC STRESS
Salt stress is a critical challenge to plant growth and global food security, necessitating an in-depth understanding of the mechanisms plants employ to adapt to saline environments. Nitrogen (N) metabolism plays a pivotal role in regulating plant responses to salinity, with complex interactions …
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Effects of vermicomposted spent mushroom compost on growing medium characteristics, plant growth, yield and abiotic stress tolerance
… compost increased plant growth and reduced plant stress under conditions of cold stress, but not salinity or heat stress. The addition of 20% vermicompost to cold-stressed plants increased plant growth by an average of 30% and increased chlorophyll fluorescence by an average of 21%. Compared to …
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Molecular characterization of ALDRXv4, an aldose reductase orthologue isolated from xerophyta viscosa, in response to abiotic stress
Includes bibliographical references (leaves 61-70).
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Morphological and Physiological Leaf Adaptations to Seasonal and Diurnal Abiotic Stress for Two Barrier Island Sand Dune Species
… native dune vegetation to seasonal and diurnal abiotic stress will be essential in artificial dune construction to maintain optimal growth conditions for native species. The aim of this dissertation research was to explore these adaptations for two common sand dune species during the growth …
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Characterization of a minimal abiotic stress-inducible promoter in the development of a binary vector for crop protection
… of how GM NBT strategies can be deployed where stress-protection-genes and transcription factors (TFs) are expressed in GM plants in an orchestrated manner using customised stress-inducible promoters, which govern gene expression. Many studies have argued against constitutive promoters in …
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