Search for dissertations about: "acclimation"

Showing result 21 - 25 of 49 swedish dissertations containing the word acclimation.

  2. 21. Genetic and Molecular Mechanisms Controlling Reactive Oxygen Species and Hormonal Signalling of Cell Death in Response to Environmental Stresses in Arabidopsis thaliana

    Author : Per Mühlenbock; Stanislaw Karpinski; Barbara Karpinska; Pierre Frendo; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Plant physiology; Växtfysiologi;

    Abstract : In the present work the regulation of environmentally induced cell death and signaling of systemic acquired acclimation (SAA) in Arabidopsis thaliana is characterized. We used the lesion simulating disease1 (lsd1) mutant as a model system that is deregulated in light acclimation and programmed cell death (PCD). READ MORE

  4. 22. Molecular responses of plants to solar UV-B and UV-A radiation

    Author : Luis Orlando Morales; Pedro José Aphalo; Mikael Brosché; Riitta Tegelberg; Nigel Paul; Örebro universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Biology; Biologi;

    Abstract : Plant responses to solar ultraviolet radiation (UV, 280-400 nm) were assessed at different molecular levels using Betula pendula Roth (silver birch) and Arabidopsis thaliana (Arabidopsis) as model species in outdoor experiments to assess the possibly interacting roles of the UV-B and UV-A wavebands in acclimation to sunlight. Solar UV-B (280-315 nm) and UV-A (315-400 nm) irradiance was attenuated with plastic films. READ MORE

  5. 23. 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

  6. 24. The secretome of brown adipose tissue

    Author : Ida R. Hansen; Jan Nedergaard; Francesco Villarroya; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; fysiologi; Physiology;

    Abstract : Brown adipose tissue has long been known for its heat-producing capacity, but less is known about its possible effects as a secretory organ. This thesis summarizes information about presently known factors secreted from brown adipose tissue and about their actions. We were able to add factors to the list by the use of a signal-sequence trap method. READ MORE

  7. 25. Adrenergic receptors in brown adipose tissue

    Author : Jan Svartengren; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The purpose of this study was to identify adrenergic receptors and to investigate their regulation of physiological processes in brown adipose tissue.Isolated hamster brown fat cells and plasma membrane fractions contained a high number of α1- and β1-adrenergic receptors, as assessed by direct radioligand binding techniques using (3H)prazosin and (-)(3H)dihydroalprenolol, respectively. READ MORE