Search for dissertations about: "retrograde signal"

Showing result 1 - 5 of 8 swedish dissertations containing the words retrograde signal.

2. 1. The chloroplast talks : Insights into the language of the chloroplast in Arabidopsis

   Author : Peter Kindgren; Åsa Strand; Barry Pogson; Umeå universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Arabidopsis thaliana; chloroplast; photosynthesis; retrograde communication; Mg-ProtoIX; oxidative stress; gene expression; Molecular biology; Molekylärbiologi; Physiological Botany; fysiologisk botanik;

   Abstract : The chloroplast originates from an endosymbiotic event 1.5 billion years ago, when a free living photosynthetic bacteria was engulfed by a eukaryotic host. The chloroplastic genome has through evolution lost many genes to the nuclear genome of the host. READ MORE

4. 2. Get in tune : chloroplast and nucleus harmony

   Author : Dmitry Kremnev; Åsa Strand; Francis-Andre Wollman; Umeå universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Arabidopsis thaliana; chloroplast; development; gene expression;

   Abstract : Photosynthetic eukaryots emerged as a result of several billion years of evolution between proeukaryotic cell and ancestral cyanobacteria that formed modern chloroplasts. The symbiotic relationship led to significant rearrangements in the genomes of the plastid and the nucleus: as many as 90 % of all the plastid genes were transferred to the nucleus. READ MORE

5. 3. Intracellular dynamics of Alzheimer disease-related proteins

   Author : Alexandra Selivanova; Karolinska Institutet; Karolinska Institutet; []
   Keywords : ;

   Abstract : Alzheimer’s disease is a devastating neurodegenerative disorder characterized by accumulation of amyloid-β peptide and formation of amyloid plaques and aggregates of hyperphosphorylated tau protein forming neurofibrillary tangles. The amyloid-β peptide is generated through sequential processing of the amyloid precursor protein (APP) by β- and γ-secretase. READ MORE

6. 4. Specificity of neurotrophins in the nervous system : a genetic approach to determine receptor engagement by neurotrophins

   Author : Karin Agerman; Karolinska Institutet; Karolinska Institutet; []
   Keywords : ;

   Abstract : The classical neurotrophic factor hypothesis describes the neurotrophins as retrograde signalling factors supporting the survival of postmitotic neurons during the development. Knock-out mice for the neurotrophins and/or their receptors have been generated and their analyses gave new insights in the temporal expression and particular functions of these factors during development. READ MORE

7. 5. Coordination of two different genomes in response to light and stress

   Author : Louise Norén Lindbäck; Åsa Strand; Antony Dodd; Umeå universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Arabidopsis thaliana; chloroplast; cellular communication; tetrapyrrole; circadian clock; oxidative stress; light signalling; gene regulation; molekylärbiologi; Molecular Biology;

   Abstract : About 1.5 billion years ago, a photosynthetic bacteria was engulfed by a eukaryotic cell which initiated a symbiotic relationship and the evolution of the chloroplast as we know it today. The chloroplast has retained its own genome encoding for a number of proteins required for the function of the chloroplast. READ MORE