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Crypt cells are involved in accessory olfactory system and kin recognition in larval zebrafish

Termin: 
Mo, 04.12.2017 - 17:15 Uhr
Treffpunkt: 
Hörsaal Zoologie, Poppelsdorfer Schloss
Veranstaltungsart: 
Vortrag
Veranstaltungsreihe: 
Evolutionsbiologisches Kolloquium
Zielgruppe: 
Studierende
Vortragende/r: 
PD Dr. Mario Wullimann, München

Zebrafish imprint on visual (at day 5 post fertilization) and olfactory (at day 6 post fertilization) cues coming from kin siblings. Here, zebrafish larvae were raised experimentally in order to generate imprinted and non-imprinted specimens.

Stimulation tests (at day 9) using kin odor show a specific increase of neuronal activity (shown with pERK) in crypt cells and in the mediodorsal olfactory bulb only in imprinted larvae, but not in non-imprinted larvae, suggesting that imprinting triggers neural changes at the olfactory epithelium level and the central nervous system.

Additional tracing experiments in adult zebrafish show an associated accessory olfactory pathway originating from crypt and microvillous olfactory sensory cells running via mediodorsal olfactory bub and medial amygdala to the tuberal hypothalamus, which is diagnostic in synaptic succession of the vomeronasal system seen in land vertebrates.

Ansprechpartner

Sektionsleiterin
+49 228 9122-241
+49 228 9122-295
h [dot] waegele [at] zfmk [dot] de

Biologisches Kolloquium

Prof. Dr. H. Wägele
Zoologisches Forschungsmuseum Alexander Koenig,
Adenauerallee 160, 53113 Bonn
 
Prof. Dr. G. von der Emde
Institut für Zoologie, Poppelsdorfer Schloss,
Meckenheimer Allee 169, 53115 Bonn
 
Ort: Großer Hörsaal, Poppelsdorfer Schloß
Zeit: montags, 17.15 Uhr
 

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