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 151 for “"Stress tolerance"”.
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Molecular mechanisms of stress tolerance in plants
Environmental stress conditions such as drought, salt stress and pathogenic fungi affect negatively plant growth and productivity. Therefore, it is necessary to search for new genetic components and strategies for improving resistance and tolerance in crops. In the present thesis, we describe two …
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Molecular studies on plants to enhance their stress tolerance
Environmental stresses such as drought, high salt and low temperature affect plant growth and decrease crop productivity extremely. It is important to improve stress tolerance of the crop plant to increase crop yield under stress conditions. The Arabidopsis thaliana salt tolerance 1 gene (AtSTO1) …
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Investigation of growth and stress tolerance characteristics of Cronobacter spp.
… ability to tolerate physiologically relevant stress conditions that are commonly encountered in the gastrointestinal tract. While all strains were able to endure the suboptimal conditions tested, noteworthy variations were observed between strains. A collection of these strains were Lux-tagged …
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Effect of soil nutrient status on stress tolerance in Proteaceae
… rates respectively over a 9 day water stress cycle (experimental period). In stressed and unstressed treatments, stomatal conductance and transpiration rates of plants grown on the low nutrient treatment was generally lower than that of plants grown on the medium and high nutrient …
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Managing Stress Tolerance on Warm-Season Putting Greens in the Transition Zone
… zone are a general lack of cold- and shade-tolerance. Protective covers are essential to protect ultradwarf bermudagrass putting greens in the winter months. Unfortunately, golf courses can still experience winterkill underneath protective covers. Two field trials were conducted with a goal …
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The Role of Polyamines in Osmotic Stress Tolerance in Gulf Killifish Fundulus Grandis
Polyamines are a diverse class of aliphatic molecules that are highly polycationic at physiological intracellular pH. Polyamine levels are regulated by the coordinated actions of arginase (Arg), ornithine decarboxylase (Odc), and polyamine oxidase (Pao). Although little is known of their functions …
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Seed germination requirements and salt stress tolerance of coastal rare species in Sardinia
… metabolic adaptations to overcome environmental stresses. Stress may be physical (e.g. temperature) or chemical (e.g. salinity). Many communities comprise highly specialized species, which have comparatively restricted geographical distributions. The coastal species investigated in this Ph.D. …
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Interrogating the multi-stress tolerance of Oryza australiensis using novel genomic and phenomic strategies
… they are also susceptible to a number of abiotic stresses including heat wave events and drought. To keep pace with increasing food demand, domestic rice will need to be augmented such that its realised yield is close to its potential yield. Recently there has been great interest in exploring …
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Molecular mechanisms of salt and osmotic stress tolerance in Frankia strains isolated from Casuarina trees
… be salinized. The hyper-ionic and hyper-osmotic stresses associated with salt-affected soils threaten the ability of cells to maintain optimal turgor pressure and intracellular ionic concentration for growth and functioning. The nitrogen-fixing soil actinobacterium Frankia shows marked …
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Effects of Nitrate and Cytokinin on Nitrogen Metabolism and Heat Stress Tolerance of Creeping Bentgrass
… of N and CK on creeping bentgrass under heat stress; 3) to investigate the simultaneous effects of CK and N on the antioxidant responses of heat stressed creeping bentgrass; and 4) to examine the expression pattern of the major heat shock proteins (HSPs) in creeping bentgrass during different …
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Translational Repression of G3BP in Cancer and Germ Cells Suppresses Stress Granules and Enhances Stress Tolerance
… and potential as therapeutic targets in disease. Stress granules (SG) are membrane-less ribonucleoprotein condensates that form in response to various stress stimuli via phase separation. SG act as a protective mechanism to cope with acute stress, but persistent SG have cytotoxic effects that are …
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Recombinant Chromosome Substitution Lines as a Source of Genetic Variation for Drought Stress Tolerance in Barley
Exploring the naturally occurring genetic variation of the wild barley genepool has become a major target of barley crop breeding programmes aiming to increase crop productivity and sustainability in global climate change scenarios. However this diversity remains unexploited and effective …
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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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GENETIC PARAMETERS FOR HEAT AND SALINITY STRESS TOLERANCE IN NORTHERN GULF OF MEXICO EASTERN OYSTER, CRASSOSTREA VIRGINICA
… In this study, the feasibility of improving tolerance to these two stresses by selection was evaluated in common garden experiments employing a pool of 160 families. Heat stress tolerance was evaluated in seed (3.5 months) and adults (14 months) by applying a sustained temperature of 38-39 °C …
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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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The regulation of genes of unknown function implicated in nitrosative stress tolerance in Escherichia coli K-12
… and another operon implicated in nitrosative stress management, \(hcp-hcr\), were unknown. Strains carrying a chromosomal \(yeaR-yoaG\) deletion were not more sensitive to nitric oxide or hydroxylamine compared with the parental strain, suggesting that the products of this operon are not …
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Root growth of wheat genotypes in hydroponics and soil in relation to water stress tolerance and grain yield
… L.) genotypes are believed to be important in tolerance to drought and flooding, yet neither the extent of differences in root size among modern soft red wheat genotypes, nor the degree of association between root size and drought or flooding tolerance is known. This study was conducted to see …
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