Sökning: "Cytokinin"

Visar resultat 1 - 5 av 11 avhandlingar innehållade ordet Cytokinin.

  1. 1. Regulatory Control of Autumn Senescence in Populus tremula

    Författare :Edlund Erik; Stefan Jansson; Paul Dijkwel; Umeå universitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Aspens; Girdling; Anthocyanins; Arginine; Autumn Senescence; Cytokinins; Populus tremula; Asp; Ringbarkning; Antocyanin; Arginin; Höstlöv; Cytokinin; Populus tremula; Physiological Botany; fysiologisk botanik;

    Sammanfattning : Autumn senescence is a visually spectacular phenomenon in which trees prepare for the oncoming winter. The mechanism for regulation of autumn senescence in trees has been very hard to pinpoint. In this thesis the main focus is to investigate how autumn senescence is regulated in aspens (Populus tremula). LÄS MER

  3. 2. A molecular network mediating adventitious root initiation in Arabidopsis thaliana

    Författare :Abdellah Lakehal; Catherine Bellini; Malcolm Bennett; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Adventitious rooting; auxin; jasmonate; cytokinin; phytohormone perception and signalling; vegetative propagation;

    Sammanfattning : To adapt to the ever-changing rhizosphere conditions, land plants evolved a sophisticated root system. The genetic determinants of the root system establishment have been the targets of natural selection, resulting in a very complex but robust molecular networks and circuits. LÄS MER

  4. 3. Responses of barley to environmental nitrate; root development, cytokinin levels and nitrate reductase

    Författare :Mariann E. Samuelson; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  5. 4. Changes in endogenous cytokinin-like substances in seeds during dormancy release and early germination

    Författare :Åsa Julin-Tegelman; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : From studies using non-dormant seeds, Zea mays L. and Phaseotus vulgaris L. transient peaks of endogenous cytokinin-like substances were observed after only 4 h of imbibition. LÄS MER

  7. 5. Interaction between auxin, cytokinin and ethylene in the regulation of root growth in Pisum sativum L

    Författare :Gertrud Bertell; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The effects of exogenous auxins (indole-3-acetic acid (IAA), indole-3-butyric acid (IBA) and 2,4-dichlorophenoxyacetic acid (2,4-D)), cytokinins (benzylaminopurine (BAP) and zeatin) and ethylene, applied as the precursor 1 -aminocyclopropane- 1-carboxylic acid (ACC), on the root growth of pea (Pisumsativum L.) seedlings were investigated. LÄS MER