Search for dissertations about: "cold tolerance"

Showing result 1 - 5 of 35 swedish dissertations containing the words cold tolerance.

2. 1. In the quest for a cold tolerant variety : gene expression profile analysis of cold stressed oat and rice

   Author : Angelica Lindlöf; Högskolan i Skövde; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; cold tolerance; oat; rice; bioinformatics analysis; Bioinformatics; Bioinformatik; Technology; Teknik; cold tolerance; oat; rice; bioinformatics analysis;

   Abstract : Cold acclimation is a process which increases the freezing tolerance of an organism, after exposure to low, non-freezing temperatures. The acclimation ensures that cold tolerant species can endure harsh winter conditions, by preparing them to sub-zero temperatures. READ MORE

4. 2. Natural variation in cold adaptation and freezing tolerance in Arabidopsis thaliana

   Author : Antoine Bos; Pär Ingvarsson; Hans Stenøien; Umeå universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Arabidopsis thaliana; cold acclimation; freezing tolerance; flowering time; latitudinal clines; genetic variation; evolutionary genetics; Molecular biology; Molekylärbiologi;

   Abstract : Plants have spread to almost everywhere in the world. As they disperse, they meet many different environments to which they may be able to adapt. For a plant species to adapt to a new environment, genetic variation is needed. The individuals differ from each other in their genetic composition, which often means differences in phenotypes. READ MORE

5. 3. Thriving in extremes : Local adaptation of grasses (Poaceae) to geothermally heated soils on a subarctic island

   Author : Jan-Niklas Nuppenau; Aelys M. Humphreys; Catarina Rydin; Johan Ehrlén; Alessandro Chiarucci; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; abiotic stress; Agrostis; cold; colonization history; common garden; extreme environments; Festuca; frost; ice encasement; Iceland; heat; overwintering; phenology; plastome; snown; thermal tolerance; Plant Systematics; växtsystematik;

   Abstract : Temperature is one of the most decisive parameters when it comes to determining characteristics and distributions of life worldwide. For plants, as sessile organisms, it is particularly important to be able to deal with the temperatures they are exposed to at a given location. READ MORE

6. 4. Genetically Engineered Plants: Improved stress tolerance, growth and facilitated protein purification

   Author : Gösta Lilius; Tillämpad biokemi; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; glycine betaine; gene; freezing; flooding; drought; dicoteledones; desiccation; compatible solutes; cold; choline dehydrogenase; chill; CDH; betaine; betA; alkaloids anoxia; affinity purification; affinity tags; handles; hemoglobin; hypoxia; low temperatu; Biotechnology; Bioteknik;

   Abstract : Heterologous genes were expressed in plants in which the overall goal was to increase the value of the final crop. Various aspects were explored and evaluated, such as improving the stress tolerance, enhancing the availability of oxygen in growing cells and producing rare proteins with increased degrees of purity. READ MORE

7. 5. Unravelling the complexity of cold acclimation in plants

   Author : Aakash Chawade; Göteborgs universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; bioinformatics; cold acclimation; winter; oat; arabidopsis; stress; freezing; genetic networks; metabolomics;

   Abstract : Many plants respond to low non-freezing temperatures by increasing their freezing tolerance in a process known as cold acclimation. Microarray studies have shown that hundreds of genes are differentially expressed during the cold acclimation process in Arabidopsis. READ MORE