Sökning: "conifer"

Visar resultat 1 - 5 av 39 avhandlingar innehållade ordet conifer.

  1. 1. Conifer embryology : a study of polar auxin transport and WOX transcription factors

    Detta är en avhandling från Kalmar/Växjö : Linnaeus University Press

    Författare :Joakim Palovaara; Inger Hakman; Wolfgang Werr; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES Biology Organism biology Plant physiology; NATURVETENSKAP Biologi Organismbiologi Växtfysiologi; Cell and Organism Biology; Cell- och organismbiologi;

    Sammanfattning : Plants, like animals, use endogenous signaling molecules to coordinate their own physiology and development. One such molecule in plants is the hormone auxin and recent research has implicated auxin and its polar transport, together with the WOX transcription factors, in regulating embryo patterning and development in angiosperms (flowering plants), the most diverse group of land plants. LÄS MER

  2. 2. Conifer chemical defense Rugulation of bark beetle colonization and pheromone emission

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Tao Zhao; Anna-Karin Borg-Karlson; Irena Valterova; [2011]
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Picea abies; Ips typographus; Ceratocystis polonica; methyl jasmonate; windstorm; stress response; terpenes; phenols; colonization; pheromone emission; FORESTRY; AGRICULTURAL SCIENCES and LANDSCAPE PLANNING Plant production Plant and forest protection; SKOGS- och JORDBRUKSVETENSKAP samt LANDSKAPSPLANERING Växtproduktion Växt- och skogsskydd;

    Sammanfattning : Terpenes and phenols are of importance in conifer defense against insects and pathogens. Knowledge about tree chemical defense is vital for developing practical methods to maintain healthy forests. LÄS MER

  3. 3. Functional Diversification among MADS-Box Genes and the Evolution of Conifer Seed Cone Development

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Erika Groth; Peter Engström; Karolina Tandre; Tom Gerats; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; conifer; seed cone; evo-devo; morphology; plant development; plant evolution; gene family; gene evolution; AGAMOUS; MADS-box; transcription factor; Picea; Cryptomeria; Thujopsis; Juniperus; NATURAL SCIENCES Biology; NATURVETENSKAP Biologi; Biologi med inriktning mot fysiologisk botanik; Biology with specialization in Physiological Botany;

    Sammanfattning : MADS-box genes are important regulators of reproductive development in seed plants, including both flowering plants and conifers. In this thesis the evolution of the AGAMOUS subfamily of MADS-box genes, and what the ancestral function of this group of genes might have been in the early seed plants about 300 million years ago, was addressed by the discovery of two novel conifer genes, both basal to all previously known AGAMOUS subfamily genes. LÄS MER

  4. 4. Volatiles of Conifer Seedlings Compositions and Resistance Markers

    Detta är en avhandling från Stockholm : KTH

    Författare :Astrid Kännaste; Anna-Karin Borg-Karlson; Anders Backlund; [2008]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Conifers; Norway spruce; Scots pine; Nalepella; Oligonychus ununguis; green leaf volatiles; terpenes; aromatics; benzenoids; SPME; induced defense reaction; NATURAL SCIENCES Chemistry Organic chemistry; NATURVETENSKAP Kemi Organisk kemi;

    Sammanfattning : Pine weevils cause major damage to newly planted conifer seedlings in reforestation areas. However, recent findings indicate that small (“mini”) seedlings, planted at the age of 7-10 weeks, are gnawed less by pine weevils than the larger, conventionally planted seedlings. LÄS MER

  5. 5. Proteomics and metabolomics in biological and medical applications

    Detta är en avhandling från Umeå : Kemiska institutionen, Umeå Universitet

    Författare :Liudmila Shiryaeva; Wolfgang P. Schröder; Pernilla Wikström; Peter Roepstroff; [2011]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; 2D-DIGE; biomarkers; cold-acclimation; conifer; freezing tolerance; GC-MS; metabolomics; multiple hypothesis test; multivariate analysis; OPLS-DA; Picea obovata; plasma; prostate cancer; proteomics; ProteoMiner; Siberian spruce;

    Sammanfattning : Biological processes in living organisms consist of a vast number of different molecular networks and interactions, which are complex and often hidden from our understanding. This work is focused on recovery of such details for two quite distant examples: acclimation to extreme freezing tolerance in Siberian spruce (Picea obovata) and detection of proteins associated with prostate cancer. LÄS MER