Claudine Masson

Learn More
This paper describes the ultrastructural organization of the honeybee antennal lobe, including the distribution of synapses within the antennal lobe neuropile and the distribution of the afferent fibres in the antennal nerve and its afferent tracts. We show that: 1) The antennal nerve and tracts T3-T6 are composed of a heterogeneous population of fibres,(More)
The role of antennal sensory projections on the ontogeny of the bee antennal lobe was analyzed using both light and transmission electron microscopy. Normal and deafferented developing antennal lobes were examined. The results obtained show that (1) initiation of synaptogenesis in the antennal lobe is independent of the arrival of sensory inputs; (2)(More)
We present a model of the specialist olfactory system of selected moth species and the cockroach. The model is built in a semi-random fashion, constrained by biological (physiological and anatomical) data. We propose a classification of the response patterns of individual neurons, based on the temporal aspects of the observed responses. Among the(More)
The processing of odorant signals is performed, in the olfactory bulb of vertebrates or in the antennal lobe of insects, by different types of neurons which display specific morphological and functional features. The present work characterizes the morphogenesis of the main neuronal types which participate in olfactory discrimination in the adult honeybee(More)
The objective of this work is to describe the glomerular organization of the deutocerebrum in Blaberus craniifer and to test the hypothesis that the glomeruli are identifiable. The problem is studied using the techniques of analytical geometry, i.e., by measuring the location of the glomeruli in cartesian coordinate systems. Computerized geometrical and(More)
Both intrinsic (programmed) and extrinsic (non-programmed) factors are thought to play a role in the morphogenesis of neurones in the honeybee antennal lobe (the first relay station in the olfactory pathway) during development. We present here a morphometric and statistical analysis of a large population of pupal honeybee antennal lobe neurones grown in(More)
A culture technique for the in vitro growth and differentiation of antennal lobe cells from the honeybee, Apis mellifera, is described and the ultrastructure of the growing cells is analysed. Two types of cell are present in the cultures and from their morphology and ultrastructure they can be identified as glial cells and neurones. The neurones have a(More)
Michel Kerszberg Institut Pasteur CNRS (URA 1284) Neurobiologie Moleculaire 25, Rue du Dr. Roux 75015 Paris, France Based on precise anatomical data of the bee's olfactory system, we propose an investigation of the possible mechanisms of modulation and control between the two levels of olfactory information processing: the antennallobe glomeruli and the(More)