6533b858fe1ef96bd12b6478
RESEARCH PRODUCT
Physiological responses and central nervous projections of antennal olfactory receptor neurons in the adult desert locust, Schistocerca gregaria (Orthoptera : Acrididae)
S. A. OchiengBill S. HanssonSylvia AntonP. G. N. NjagiX. Grosmaitresubject
Olfactory receptorPhysiology[SCCO.NEUR]Cognitive science/Neuroscience[SCCO.NEUR] Cognitive science/NeurosciencefungiAnatomyBiologyInhibitory postsynaptic potentialbiology.organism_classificationCell biologyAcrididaeBehavioral Neurosciencemedicine.anatomical_structurenervous system[ SCCO.NEUR ] Cognitive science/NeurosciencemedicineAnimal Science and ZoologyAntennal lobeSchistocercasense organsSensillumEcology Evolution Behavior and SystematicsLocustComputingMilieux_MISCELLANEOUSAntenna (biology)description
Olfactory receptor neurons present in two morphological sensillum types on the male Schistocerca gregaria antenna were for the first time investigated physiologically when stimulated with behaviourally relevant odours. Neurons present in trichoid/basiconic sensilla showed clear excitatory responses to compounds present in the male-produced aggregation pheromone and also to a plant produced compound. Sensilla could be categorised physiologically according to the responses of their receptor neurons to the tested stimuli. Also receptor neurons present in sensilla coeloconica responded to aggregation pheromone components, but always in an inhibitory fashion. These neurons could, however, be excited by a plant produced compound and by some acids present in the nymphal odour. The antennal lobe of the male S. gregaria was observed to contain about 1000 very small glomerular structures. Single receptor neurons were stained from the antenna to the antennal lobe using a cobalt lysine technique. These stainings revealed a multi glomerular axonal branching pattern of antennal receptor neurons.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1996-08-01 |