Specificity and distribution of receptor cells in the olfactory mucosa of char (Salmo alpinus L.)
Identifieur interne : 000F15 ( Istex/Corpus ); précédent : 000F14; suivant : 000F16Specificity and distribution of receptor cells in the olfactory mucosa of char (Salmo alpinus L.)
Auteurs : Georg ThommesenSource :
- Acta Physiologica Scandinavica [ 0001-6772 ] ; 1982-05.
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Abstract
Olfactory receptor activity was studied in the char by two methods: (a) recording of the electro‐olfactogram (EOG) with two electrodes simultaneously in the olfactory pit and (b) recordings from the olfactory bulb during olfactory stimulation and progressive removal of lamellae in the olfactory rosette. As stimuli were used methionine representing the amino acids and dilute char bile representing the bile salts. By cross‐adaptation studies it was demonstrated that receptors sensitive to each of these two stimuli are functionally independent. The results show further that both types of receptors may be found on all lamellae, but differentially distributed within each lamella. Receptors sensitive to methionine are located closer to the raphe than receptors sensitive to bile. The spatial differentiation persists regardless of stimulus concentration. The results are discussed in relation to the projection and growth of primary nerve fibres into the olfactory bulb, and the existence of receptor cells with microvilli and with cilia.
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DOI: 10.1111/j.1748-1716.1982.tb07044.x
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ISTEX:2B782A24E174245440D073D310F4BE626DD035CBLe document en format XML
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As stimuli were used methionine representing the amino acids and dilute char bile representing the bile salts. By cross‐adaptation studies it was demonstrated that receptors sensitive to each of these two stimuli are functionally independent. The results show further that both types of receptors may be found on all lamellae, but differentially distributed within each lamella. Receptors sensitive to methionine are located closer to the raphe than receptors sensitive to bile. The spatial differentiation persists regardless of stimulus concentration. 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As stimuli were used methionine representing the amino acids and dilute char bile representing the bile salts. By cross‐adaptation studies it was demonstrated that receptors sensitive to each of these two stimuli are functionally independent. The results show further that both types of receptors may be found on all lamellae, but differentially distributed within each lamella. Receptors sensitive to methionine are located closer to the raphe than receptors sensitive to bile. The spatial differentiation persists regardless of stimulus concentration. 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As stimuli were used methionine representing the amino acids and dilute char bile representing the bile salts. By cross‐adaptation studies it was demonstrated that receptors sensitive to each of these two stimuli are functionally independent. The results show further that both types of receptors may be found on all lamellae, but differentially distributed within each lamella. Receptors sensitive to methionine are located closer to the raphe than receptors sensitive to bile. The spatial differentiation persists regardless of stimulus concentration. 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As stimuli were used methionine representing the amino acids and dilute char bile representing the bile salts. By cross‐adaptation studies it was demonstrated that receptors sensitive to each of these two stimuli are functionally independent. The results show further that both types of receptors may be found on all lamellae, but differentially distributed within each lamella. Receptors sensitive to methionine are located closer to the raphe than receptors sensitive to bile. The spatial differentiation persists regardless of stimulus concentration. The results are discussed in relation to the projection and growth of primary nerve fibres into the olfactory bulb, and the existence of receptor cells with microvilli and with cilia.</abstract><subject lang="en"><genre>keywords</genre><topic>Salmonid fish</topic><topic>olfactory epithelium</topic><topic>spatial differentiation</topic><topic>receptor distribution</topic><topic>electro‐olfactogram</topic><topic>cross‐adaptation</topic><topic>bile salts</topic><topic>amino acids</topic></subject><relatedItem type="host"><titleInfo><title>Acta Physiologica Scandinavica</title></titleInfo><genre type="journal">journal</genre><identifier type="ISSN">0001-6772</identifier><identifier type="eISSN">1365-201X</identifier><identifier type="DOI">10.1111/(ISSN)1365-201X</identifier><identifier type="PublisherID">APHA</identifier><part><date>1982</date><detail type="volume"><caption>vol.</caption><number>115</number></detail><detail type="issue"><caption>no.</caption><number>1</number></detail><extent unit="pages"><start>47</start><end>56</end><total>10</total></extent></part></relatedItem><identifier type="istex">2B782A24E174245440D073D310F4BE626DD035CB</identifier><identifier type="DOI">10.1111/j.1748-1716.1982.tb07044.x</identifier><identifier type="ArticleID">APHA47</identifier><accessCondition type="use and reproduction" contentType="copyright">© 1982 Scandinavian Physiological Society</accessCondition><recordInfo><recordContentSource>WILEY</recordContentSource><recordOrigin>Blackwell Publishing Ltd</recordOrigin></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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