Sökning: "Viola tricolor."

Hittade 2 avhandlingar innehållade orden Viola tricolor..

  1. 1. Pollen Competition as a Target for Sexual Selection in Plants

    Författare :Åsa Lankinen; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Sexual selection; Pollen tube growth rate; Pollen selection models; Pollen interactions; Pollen competition; Plants; Phenotypic plasticity; Non-random mating; Genotype by environment interactions; Mate choice; Viola tricolor.; Plant ecology; Växtekologi;

    Sammanfattning : According to the theory of sexual selection, traits can evolve because they confer a mating advantage in competition with members from the same sex. In animals, sexual selection is considered as an important evolutionary force. In this thesis I have investigated the potential for sexual selection in plants. LÄS MER

  3. 2. Cytotoxic Cyclotides : Structure, Activity, and Mode of Action

    Författare :Erika Svangård; Per Claeson; Lars Bohlin; Ulf Göransson; John H. Cardellina II; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmacognosy; cyclotide; cytotoxic; cancer; cyclic cystine knot; Viola; Violaceae; liposome; hollow fibre; homology modelling; mass spectrometry; amphipathic; structure–activity; tumour; membrane disruption; necrosis; Farmakognosi; Pharmacognosy; Farmakognosi;

    Sammanfattning : Cyclotides are small cyclic plant proteins, and this thesis addresses their cytotoxic structure-activity properties and their mode of action on human cancer cell lines. Cyclotides were isolated from Viola odorata and Viola tricolor; three novel cyclotide sequences and two known sequences, but of new origin, were identified using mass spectrometry, amino acid analysis, and Edman degradation. LÄS MER