Search for dissertations about: "olfactory receptor neurones"

Found 4 swedish dissertations containing the words olfactory receptor neurones.

  2. 1. Odour-mediated nectar foraging in the silver Y moth, Autographa gamma

    Author : Dainius Plepys; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; predation risk; Noctuidae; Lepidoptera; flight tunnel; GC-EAD; single sensillum; sprayer; ultrasound; floral volatiles; attraction; foraging; mate-finding; lilac aldehydes; olfactory receptor neurones; Ecology; Ekologi; Chemistry; Kemi;

    Abstract : It is well established that floral odours play a significant role in the nectar foraging behaviour in Lepidoptera and other insect orders. Floral odour may elicit searching, alighting and feeding behaviours alone or in concert with visual stimuli. READ MORE

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

    Author : Samuel Adhola Ochieng'; Biologiska institutionen; []
    Keywords : 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;

    Abstract : 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. READ MORE

  5. 3. Neuropeptide circuitries regulating food and water intake

    Author : Christian Broberger; Karolinska Institutet; Karolinska Institutet; []
    Keywords : agouti gene-related protein; anorexia mutation; arcuate nucleus; cholecystokinin; cocaine- and amphetamine-regulated transcript; coexistence; confocal microscopy; dorsal root ganglion; feeding; hypocretin; immunohistochemistry; in situ hybridization; melanin-concentrating hormone; nodose ganglion; nucleus tractus solitaxii; orexin; paraventricular nucleus; satiety; sensory neurones; pro-opiomelanocortin; vagus nerve;

    Abstract : An adequate supply of nutrients through food intake is critical for survival, as evidenced by disorders such as obesity and anorexia, which in the long run may be life-threatening. Feeding behaviour is ultimately controlled by interacting neuronal populations in the brain. READ MORE

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

    Author : Peter Valeur; Biologiska institutionen; []
    Keywords : 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;

    Abstract : 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. READ MORE