izpis_h1_title_alt

Chemotopy of amino acids on the olfactory bulb predicts olfactory discrimination capabilities of zebrafish Danio rerio
ID Miklavc, Pika (Avtor), ID Valentinčič, Tine (Avtor)

URLURL - Predstavitvena datoteka, za dostop obiščite http://dx.doi.org/10.1093/chemse/bjr066 Povezava se odpre v novem oknu

Izvleček
Amino acids reliably evoke strong responses in fish olfactory system. The molecular olfactory receptors (ORs) are located in the membrane of cilia and microvilli of the olfactory receptor neurons (ORNs). Axons of ORNs converge onspecific olfactory bulb (OB) glomeruli and the neural responses of ORNs expressing single Ors activate glomerular activity patterns typical for each amino acid. Chemically similar amino acids activate more similar glomerular activity patterns then chemically different amino acids. Differential glomerular activity patterns are the structural basis for amino acid perception and discrimination. We studied olfactory discrimination in zebrafish Danio rerio (Hamilton 1822) by conditioning them to respond to each of the following amino acidsČ L-Ala, L-Val, L-Leu, L-Arg, and L-Phe. Subsequently, zebrafish were tested for food searching activities with 18 nonconditioned amino acids. The food searching activity during 90 s of the test period was significantly greater after stimulation with the conditioned stimulus than with the nonconditioned amino acid. Zebrafish were able to discriminate all the tested amino acids except L-Ile from L-Val and L-Phe fromL-Tyr. We conclude that zebrafish have difficulties discriminating amino acid odorants that evoke highly similar chemotopic patterns of activity in the OB.

Jezik:Angleški jezik
Ključne besede:amino acid, behavior, discrimination, fish, olfaction
Vrsta gradiva:Delo ni kategorizirano
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:BF - Biotehniška fakulteta
Leto izida:2012
Št. strani:Str. 65-75
Številčenje:Vol. 37, issue 1
PID:20.500.12556/RUL-37498 Povezava se odpre v novem oknu
UDK:591
ISSN pri članku:0379-864X
DOI:10.1093/chemse/bjr066 Povezava se odpre v novem oknu
COBISS.SI-ID:2412623 Povezava se odpre v novem oknu
Datum objave v RUL:10.07.2015
Število ogledov:1539
Število prenosov:401
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Gradivo je del revije

Naslov:Chemical senses
Skrajšan naslov:Chem. senses
Založnik:Oxford University Press
ISSN:0379-864X
COBISS.SI-ID:30667264 Povezava se odpre v novem oknu

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