Sökning: "light-harvesting antenna"

Visar resultat 1 - 5 av 18 avhandlingar innehållade orden light-harvesting antenna.

  1. 1. Multidimensional Fluorescence Polarization Imaging of Single Light Harvesting Complexes

    Detta är en avhandling från Department of Chemistry, Lund University

    Författare :Sumera Tubasum; Lunds universitet.; Lund University.; [2012]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Light Harvesting Complexes; Single Molecule Spectroscopy; Polarization Spectroscopy; Exciton Dynamics; Spectral Disorder;

    Sammanfattning : This thesis presents my research journey in the Department of Chemical Physics,Lund University. Multidimensional fluorescence polarization imaging is used to study single LH2s. The method uses linearly polarized excitation light and the emission is detected through a polarizer. LÄS MER

  2. 2. Dissecting the photosystem II light-harvesting antenna

    Detta är en avhandling från Umeå : Fysiologisk botanik

    Författare :Jenny Andersson; Umeå universitet.; [2003]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Plant physiology; antisense; Arabidopsis thaliana; chlorophyll; carotenoid; feedback de-excitation; fitness; LHC; NPQ; photosynthesis; state transitions; xanthophyll; Växtfysiologi; NATURAL SCIENCES Biology Organism biology Plant physiology; NATURVETENSKAP Biologi Organismbiologi Växtfysiologi; Physiological Botany; fysiologisk botanik;

    Sammanfattning : In photosynthesis, sunlight is converted into chemical energy that is stored mainly as carbohydrates and supplies basically all life on Earth with energy.In order to efficiently absorb the light energy, plants have developed the outer light harvesting antenna, which is composed of ten different protein subunits (LHC) that bind chlorophyll a and b as well as different carotenoids. LÄS MER

  3. 3. The light-harvesting antenna of higher plant photosystem I

    Detta är en avhandling från Umeå : Umeå universitet

    Författare :Ulrika Ganeteg; Umeå universitet.; [2004]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Plant physiology; antisense; Arabidopsis thaliana; chlorophyll; fitness; LHC; photosynthesis; Växtfysiologi; NATURAL SCIENCES Biology Organism biology Plant physiology; NATURVETENSKAP Biologi Organismbiologi Växtfysiologi;

    Sammanfattning : During photosynthesis, two multi-protein complexes, photosystems (PS) I and II work in tandem to convert the light-energy absorbed by the light-harvesting antennae into chemical energy, which is subsequently used to assimilate atmospheric carbon dioxide into organic carbon compounds. This is the main nutritional basis for life on Earth. LÄS MER

  4. 4. Polarization portraits of lightharvesting antennas: from single molecule spectroscopy to imaging

    Detta är en avhandling från Department of Chemistry, Lund University

    Författare :Rafael Camacho Dejay; Lunds universitet.; Lund University.; [2014]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Energy transfer; Single molecule spectroscopy; Exciton; Fluorescence microscopy; Fluorescence polarization; Light-harvesting; Chromophore; Conjugated Polymer; Photosynthesis;

    Sammanfattning : Popular Abstract in English Plants, algae and some bacteria are able to harvest solar energy to run chemical reactions by a complex process known as photosynthesis. Crucial molecules in this process are the so-called light-harvesting antennas. LÄS MER

  5. 5. The roles of Lhcb1 och Lhcb2 in regulation of photosynthetic light harvesting

    Detta är en avhandling från Umeå : Umeå University

    Författare :Malgorzata Pietrzykowska; Umeå universitet.; Umeå universitet.; [2015]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Arabidopsis; Lhcb1; Lhcb2; LHCII; state transitions; phosphorylation; biology; biologi;

    Sammanfattning : Photosynthesis in higher plants relies upon collection of light by chlorophyll molecules associated with light harvesting chlorophyll a/b-binding (LHC) proteins. The two most abundant of these are Lhcb1 and Lhcb2, which make up light harvesting complex (LHC) II trimers. LÄS MER