Sökning: "pheromone response"

Visar resultat 1 - 5 av 20 avhandlingar innehållade orden pheromone response.

  1. 1. Circadian Rhythms in Moth Sex Pheromone Communication

    Detta är en avhandling från Chemical Ecology and Ecotoxicology, Department of Biology, Lund University

    Författare :Germund von Wowern; [2006]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physiology of invertebrates; växtparasitologi; Entomologi; plant parasitology; Entomology; Ecology; Ekologi; locomotor activity; social synchronisation; PDH; corazonin; PBAN; pheromone response; sex phermone; Lepidoptera; Ryggradslösa djurs fysiologi; calling behaviour; circadian rhythm;

    Sammanfattning : Sex pheromone communication and related physiological processes are regulated by circadian clock mechanisms in many moth species. This thesis includes studies of circadian rhythms in sexually relevant behaviours and communication in the Egyptian cotton leafworm Spodoptera littoralis, the turnip moth Agrotis segetum, the Indian meal moth Plodia interpunctella and the Mediterranean flour moth Ephestia kuehniella. LÄS MER

  2. 2. Pheromone-mediated mating system in a moth species

    Detta är en avhandling från Animal Ecology

    Författare :Mats G E Svensson; [1996]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; mating behaviour; pheromone plume; mate choice; sexual selection; sex pheromone; Noctuidae; Lepidoptera; Agrotis segetum; moth; individual variation.; Animal ecology; Djurekologi;

    Sammanfattning : In a series of studies, carried out in the laboratory and in the field in southern Sweden, I have examined factors influencing the mating behaviour of the turnip moth Agrotis segetum. The reproductive potential of the sexes and the mating behaviour was studied. The reproductive potential of males is greater than that of females. LÄS MER

  3. 3. 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; KTH.; [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

  4. 4. Male moth behaviour and perception in pheromone plumes

    Detta är en avhandling från Department of Ecology, Lund University

    Författare :Peter Valeur; [1998]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Djurekologi; Animal ecology; Grapholita molesta; Noctuidae; Lepidoptera; Tortricidae; behaviour; electrophysiology; single cell; flight tunnel; sex pheromone; wind tunnel; radar; flight; pre-exposure; mechanisms of mating disruption; Agrotis segetum; choice test;

    Sammanfattning : Behaviour of male moths and electrophysiological responses of male pheromone-specific olfactory receptor neurones were studied in two model species, the oriental fruit moth Grapholita molesta and the turnip moth Agrotis segetum. The studies were aimed at elucidating the relative importance of different mating disruption mechanisms. LÄS MER

  5. 5. Fatty Acyl Reductases and Fatty Acyl Desaturases. Deciphering the biosynthesis of species-specific moth female sex pheromones from common fatty acids

    Detta är en avhandling från Lund University, Dept. of Biology

    Författare :Åsa Hagström; [2013]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Moth; pheromone; insect; evolution; fatty acyl desaturase; fatty acyl reductase; endoplasmic reticulum; fatty acid biosynthesis; GFP; heterologous expression; phylogeny; cell factory; lepidoptera;

    Sammanfattning : Moths (Lepidoptera) are dependent on female produced pheromones, chemical signals, for attracting a mate. Pheromones are most commonly made up by saturated and/or unsaturated fatty acid derived alcohols, acetates, and/or aldehydes that are produced by a set of enzymes in the female pheromone gland. LÄS MER