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 10 of 10 for “"freezing tolerance"”.
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Circadian regulation and natural variation of low temperature signaling in Arabidopsis
Many plants increase in freezing tolerance in response to low non-freezing temperature through a process known as cold-acclimation. In Arabidopsis, cold acclimation is associated with the induction or repression of over a thousand genes. The CBF cold response pathway has a central role in these …
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Effect of Alternative Management Practices and the Fungal Endophyte (Epichloë festucae var. lolii) on Improving the Longevity of Perennial Ryegrass (Lolium perenne L.) in Minnesota
… endophyte Epichloë festucae var. lolii on the freezing tolerance of a wide array of perennial ryegrass germplasm. Our results showed no direct effect of endophyte on freezing tolerance of perennial ryegrass; however, there was consistent association between the endophyte and a freezing tolerant …
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Physiological and genetic mechanism(s) of cold acclimation in Rhododendron
… sound estimations of Rhododendron leaf freezing-tolerance (LFT). Utilizing this method, Tmax values for Rhododendron cultivars, species, and populations were determined and ranked relatively. Our observation of a continuous distribution of LFT in F2 and backcross (BC) populations derived …
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Quantitative Trait Loci Analysis of Low Temperature Responses in Grapevine F2 Population
<p>Freezing injury, caused by freezing temperatures in the late fall, midwinter, or early spring, can result in significant loss to grape growers. The damage may range from the partial damage of parts of the plants to the total death of the plant, and may vary between years. Freezing tolerance is a …
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Exploiting the Productivity of C4 Photosynthesis in Cool Temperate Climates: Mechanisms and Thresholds of Cold Tolerance in Miscanthus, Saccharum, and Spartina pectinata
… that is a model of photosynthetic chilling tolerance. Miscanthus is closely related to Saccharum a C4 genus that includes commercial sugarcane and energycane. Although M. x giganteus is chilling tolerant, it shows little tolerance of subzero temperatures with reports of winterkill in some …
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The role of SENSITIVE TO FREEZING6 in plant tolerance to stress
… the development of crops with greater stress tolerance. Identification of Arabidopsis mutants unable to tolerate stress is a powerful approach to investigate the molecular basis of stress tolerance in plants and so identify targets for modification. The Arabido psis mutant sfr6 (sensitive to …
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Functional analysis of the sucrose synthase gene family in Arabidopsis thaliana
… the loss of this isoform has no effect on the freezing tolerance of non acclimated and cold acclimated plants. These data provide a comprehensive overview of the expression of this gene family which supports some of the previously reported roles for Susy and indicates the involvement of …
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A Molecular and Phylogenetic Analysis of Cryobiosis in Nematodes of the Genus Panagrolaimus
Many organisms are able to survive freezing temperatures through the development of biochemical and physiological adaptations. These biochemical adaptations may include the synthesis of proteins such as antifreeze proteins or cryoprotectants such as trehalose, the elimination of ice nucleators, and …
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Ecology and Climate Tolerance of Emerging Tick Disease Vectors in Central Appalachia/Southwestern Virginia
Little is known about the tick populations found within the central Appalachian/southwestern region of Virginia. The main focus of this research was to better assess local tick communities in the central Appalachian-Southwestern region of Virginia, which was addressed by determining species …
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The Molecular Signatures of Adaptive Plasticity in Parasitic Nematodes
… and secondly changes in behaviour and stress tolerance of IJs over time during storage at different temperatures, and associated changes in the proteome. When the host cadaver becomes overcrowded, there is a build-up of signals which encourage newly formed IJs to disperse, thus reducing …