Sökning: "antennal"

Visar resultat 6 - 10 av 23 avhandlingar innehållade ordet antennal.

  1. 6. Modulation of olfactory information in the antennal lobe of Spodoptera littoralis

    Författare :Sophie Kromann; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : In order to respond appropriately to external stimuli, e.g. odours in the environment,insects have to evaluate these stimuli in a context of relevance and need. These decisions are, in turn, based on internal physiological status, such as mating status. LÄS MER

  3. 7. Evolution of olfaction in Lepidoptera and Trichoptera : Gene families and antennal morphology

    Författare :Jothi Kumar Yuvaraj; Funktionell zoologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; evolution; pheromone receptors; olfaction; chemosensory; sensillum; HEK 293 cells;

    Sammanfattning : In moths, females produce sex pheromone compounds to attract males over a long distance for mating. The antennae of moths and many other insects have specialized odorant receptors (ORs), called pheromone receptors (PRs), to sense the pheromone compounds and they group in a monophyletic clade (PR clade). LÄS MER

  4. 8. Odour detection in the desert locust, Schistocerca gregaria: antennal structure and function

    Författare :Samuel Adhola Ochieng'; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; insect antennae; Olfaction; chemoreceptors; receptor neuron; electrophysiology; aggregation pheromone; SEM; TEM; Djurfysiologi; Animal physiology; Animal ethology and psychology; Djurs etologi och psykologi;

    Sammanfattning : The desert locust, Schistocerca gregaria, is a polymorphic insect that occurs in two morphological and physiological distinct phases, solitary and gregarious, depending on population density. The two phases are reversible at any developmental stage. The gregarious phase produces and uses stage-specific pheromones, that keep the swarm together. LÄS MER

  5. 9. Genetic analysis of genes found on the 4th chromosome of Drosophila - emphasizing the developmental context of Pax6

    Författare :Jesper Kronhamn; Åsa Rasmuson-Lestander; Kevin Moses; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Molecular genetics; Pax6; twin of eyeless; headless flies; head development; eye development; eyeless; Minute; RpS3A; regulatory region; Drosophila; Genetik; Genetics; Genetik; Genetics; genetik;

    Sammanfattning : The small size and the lack of recombination set the fourth chromosome of Drosophila melanogaster apart from the other chromosomes. I have shown that the Minute gene on chromosome 4, earlier named Minute-4, encodes the ribosomal protein RpS3A. Two Pax6 genes, eyeless (ey) and twin of eyeless (toy) are also located on chromosome 4. LÄS MER

  7. 10. Regulation and function of Pax-6 during head and eye development in Drosophila melanogaster

    Författare :Linn Jacobsson; Åsa Rasmuson-Lestander; Uwe Walldorf; Umeå universitet; []
    Nyckelord :molekylärbiologi; Molecular Biology;

    Sammanfattning : In Drosophila melanogaster, eyeless and twin of eyeless have important function during eye development. Mutants of both genes give a variety of eye and head phenotypes with the strongest being almost headless meaning that they lack all structures derived from the eye-antennal disc. LÄS MER