Search for dissertations about: "antennae"

Showing result 1 - 5 of 30 swedish dissertations containing the word antennae.

2. 1. Getting to know Trioza apicalis (Homoptera: Psylloidea) – a Specialist Host-Alternating Insect with a Tiny Olfactory System

   Author : Lina Kristoffersen; Biologiska institutionen; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physiology of invertebrates; Djurs anatomi och morfologi; Entomologi; plant parasitology; Entomology; Ekologi; Ecology; glomeruli; antennal lobe; olfactory receptor neurons electrophysiology; antennae; behaviour; olfaction; Sternorrhyncha; psyllid; Ryggradslösa djurs fysiologi; animal morphology; Animal anatomy; växtparasitologi;

   Abstract : This thesis comprises ecological, morphological and physiological studies of the carrot psyllid Trioza apicalis (Homoptera: Psylloidea) with particular focus on olfaction. Data from inventories of winter habitats suggest that T. apicalis prefer Picea abies over Pinus sylvestris and Juniperus communis as winter hosts. READ MORE

4. 2. Neuromechanical basis of airflow-dependent antennal positioning in hawkmoths

   Author : Dinesh Natesan; Örjan Ekeberg; Sanjay P. Sane; Volker Dürr; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; insect antennae; antennal positioning; antennal hair plates; Böhm’s bristles; Johnston’s organs; control theory; hierarchical neural circuits; tuneable feedback loop; flexible reflexes; Computer Science; Datalogi;

   Abstract : Fast behaviors, seen in varied life forms, are often considered to be stereotypic and reflexive and the control neural circuits to be hard-wired. However, many such reflexes have been shown to respond in a context-dependent manner. READ MORE

5. 3. 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

6. 4. Investigating the molecular mechanism of photoprotection, qH, in Arabidopsis thaliana

   Author : Pierrick Bru; Alizée Malnoë; Stefano Caffarri; Umeå universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Photosynthesis; Photoprotection; non photochemical quenching; qH; genetic screen; genome editing; biology; biologi; Biochemistry; biokemi; molekylärbiologi; Molecular Biology;

   Abstract : Photoprotection mechanisms in plants play a crucial role in maintaining photosystem integrity and preventing photooxidative damage. In this study, we aimed to identify new molecular players involved in the qH process, a sustained photoprotective mechanism. READ MORE

7. 5. Structure and Function of Odorant Binding Proteins and Chemosensory Proteins in Moths

   Author : Severine Jansen; Biologiska institutionen; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NMR structure; Ecology; Ekologi; Development; Lepidoptera; Odorant Binding Proteins; Chemosensory Proteins;

   Abstract : Odorant Binding Proteins (OBPs) and Chemosensory Proteins (CSPs) are small soluble proteins found in the lymph of insect sensillae located on insect antennae. Odorant Binding proteins are implied in olfaction, by binding hydrophobic odorant molecules and transporting them to the olfactory receptor located on the dendrite of the olfactory neurons. READ MORE