Sökning: "shoot apical meristem"

Hittade 3 uppsatser innehållade orden shoot apical meristem.

  1. 1. Increasing model robustness for stem cell regulation in plant shoots

    Kandidat-uppsats, Lunds universitet/Beräkningsbiologi och biologisk fysik - Genomgår omorganisation

    Författare :Niklas Korsbo; [2013]
    Nyckelord :WUSCHEL; CLAVATA; CLAVATA3; CORYNE; WUS; CLV3; CRN; meristem; stem cells; stem cell; model; feedback; network; Arabidopsis; signal; signaling; buffering; promoter; Physics and Astronomy;

    Sammanfattning : The transcription factor WUSCHEL and the peptide CLAVATA3 have key roles to plat in the regulatory network effecting the differentiation of the stem cells at the shoot apical meristem of Arabidopsis. The signal pathway of this network has been under investigation for several years and models utilizing the already identified parts of the network have been developed. LÄS MER

  3. 2. Describing radial patterning and leaf polarity in plants using a model of a dynamic shoot apical meristem with primordia initiation

    Master-uppsats, Lunds universitet/Beräkningsbiologi och biologisk fysik - Genomgår omorganisation

    Författare :André Larsson; [2012]
    Nyckelord :central; peripheral; miRNA; phyllotaxis; gene regulary network; plant; meristem; auxin; PIN1; REVOLUTA; KANADI; computational physics; biophysics; Arabidopsis; radial patterning; leaf; polarity; self-activation; feedback; Physics and Astronomy;

    Sammanfattning : The initiation of leaf and flower primordia in plants occurs in the shoot apical meristem and results in visible large–scale regular patterns of organs. It has previously been proposed that the initiation of new primordia is triggered by the plant hormone auxin by a mechanism that is confined to the outermost epidermal layer of the meristem. LÄS MER

  4. 3. Demarcating good solutions in system biology computer models using artificial neural networks

    Kandidat-uppsats, Lunds universitet/Beräkningsbiologi och biologisk fysik - Genomgår omorganisation

    Författare :André Larsson; [2010]
    Nyckelord :systems biology; shoot apical meristem; reaction-diffusion system; Arabidopsis thaliana; artificial neural network; Physics and Astronomy;

    Sammanfattning : How close a computer model comes to recreating real-world phenomena often depends on the value of its internal parameters, but investigating the outcome of the model for every point in parameter space is in practice an impossible task. Here an artificial neural network is used as a numerical predictor on two different system biology computer models. LÄS MER