Ultrastructural and histochemical studies on the taste buds in some reptiles.

Uchida, Takashi

doi:10.1679/aohc1950.43.459

Cited by 36 publications

(19 citation statements)

References 37 publications

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“…Some similarities exist between the dcv-cells as described here and dense-cored-vesicles-containing TB cells in amphibians (Desgranges, 1974;Toyoshima et al, 1984;Uchida, 1980) and mammals (type III cells, Murray, 1973Murray, , 1986Roper, 1989;Royer and Kinnamon, 1991;review: Reutter and Witt, 1993). Ultrastructurally, Astyanax and Anoptichthys dcv-cells closely resemble to mammalian type III TB cells: Type III cells possess also abundant dense-cored vesicles, especially in the peri-and infranuclear cytoplasm (Murray, 1973(Murray, , 1986Roper, 1989;Royer and Kinnamon, 1991) and in both cells the apical cytoplasm contains vesicular profiles of sER, intermediate filaments (Murray, 1986;Royer and Kinnamon, 1991) and centrioles (Murray, 1973, Royer andKinnamon 1991).…”

Section: Dcv-cellsmentioning

confidence: 55%

Ultrastructure of the taste buds in the blind cave fish Astyanax jordani (“Anoptichthys”) and the sighted river fish Astyanax mexicanus (Teleostei, Characidae)

Boudriot

Reutter

2001

J of Comparative Neurology

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This study describes the ultrastructure of the taste buds of the sighted river fish Astyanax mexicanus and of the blind cave fish Astyanax jordani (= Anoptichthys) (Teleostei, Characiformes, Characidae). In Astyanax and Anoptichthys, taste buds occur in the epithelia of the lips, oral cavity, and, in Anoptichthys, lower jaw. Both possess three types of taste buds: type I (elevated), type II (slightly elevated), and type III taste buds (not elevated or sunken). The taste buds are up to 60 microm high and up to 35 microm wide. The taste bud's sensory epithelium consists of 100--130 elongated cells: light cells, dense-cored-vesicles (dcv) -cells, dark cells, and degenerating cells. The dcv-cells are rich in dense-cored vesicles and are described for the first time in a teleostean taste bud. At the taste bud's base, there lie two to three basal cells. The basal cells of type I and type II taste buds have microvillus (spine)-like processes, in contrast to those of type III taste buds. The taste bud's nerve fiber plexus is situated between the bases of the elongated taste bud cells and the basal cells. Afferent synapses occur between dcv-cells and basal cells (presynaptic sides) and axons (postsynaptic side). Indistinct synapses occur between light cells and dark cells (presynaptic sides) and axons (postsynaptic side). The nerve fiber plexes of Anoptichthys type II and type III taste buds contain significantly more axon profiles than those of Astyanax. This may be associated with a compensatory improvement of the sense of taste in the blind, cave-dwelling fish.

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Section: Dcv-cellsmentioning

confidence: 55%

Ultrastructure of the taste buds in the blind cave fish Astyanax jordani (“Anoptichthys”) and the sighted river fish Astyanax mexicanus (Teleostei, Characidae)

Boudriot

Reutter

2001

J of Comparative Neurology

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“…Basally situated cells have also been found in the taste buds of birds, but these cells could be stem cells, not Merkel-like basal cells [Reutter and Witt, 1993]. In reptiles, cells resembling Merkellike basal cells have been described in the taste buds of turtles using electron-microscopic techniques [Korte, 1980;Uchida, 1980] [Barreiro-Iglesias et al, 2008]. An electron-microscopic study of elasmobranchs indicated the existence of basal cells in taste buds [Whitear and Moate, 1994].…”

Section: Serotonin-immunoreactive Basal Cells In the Tastementioning

confidence: 99%

Distribution, Innervation, and Cellular Organization of Taste Buds in the Sea Catfish, <b><i>Plotosus japonicus</i></b>

Nakamura

Matsuyama²,

Kirino³

et al. 2017

Brain Behav Evol

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The gustatory system of the sea catfish Plotosus japonicus, like that of other catfishes, is highly developed. To clarify the details of the morphology of the peripheral gustatory system of Plotosus, we used whole-mount immunohistochemistry to investigate the distribution and innervation of the taste buds within multiple organs including the barbels, oropharyngeal cavity, fins (pectoral, dorsal, and caudal), and trunk. Labeled taste buds could be observed in all the organs examined. The density of the taste buds was higher along the leading edges of the barbels and fins; this likely increases the chance of detecting food. In all the fins, the taste buds were distributed in linear arrays parallel to the fin rays. Labeling of nerve fibers by anti-acetylated tubulin antibody showed that the taste buds within each sensory field are innervated in different ways. In the barbels, large nerve bundles run along the length of the organ, with fascicles branching off to innervate polygonally organized groups of taste buds. In the fins, nerve bundles run along the axis of fin rays to innervate taste buds lying in a line. In each case, small fascicles of fibers branch from large bundles and terminate within the basal portions of the taste buds. Serotonin immunohistochemistry demonstrated that most of the taste buds in all the organs examined contained disk-shaped serotonin-immunopositive cells in their basal region. This indicates a similar organization of the taste buds, in terms of the existence of serotonin-immunopositive basal cells, across the different sensory fields in this species.

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“…Hatching: Ishihara, 1964b; Hind Linnb Regeneration: Okada, 1945. Histochemistry: Uchida, 1980. Histology: Chen, Cheng, & Alexander, 1987;Nagahama, 1973;Oguro, 1969;Tsuneki, 1987. Home Range: Lin & Lee, 1988; Takeishe & Ono, 1986. Homing Behavior: Ishihara, Fujita & Takada, 1978;Ootake, et al, 1985; Yoneda, 1981. Juveniles: Liu, 1939.…”

mentioning

confidence: 99%

“…Taste Buds: Nomura, 1936;Uchida, 1980. Tail Variation Role as Defensive Strategy: Taxonomy: Ahl, 1930; Arnold, 1989;Boulenger, 1887;Boulenger, 1917;Boulenger, 1921; Daudin, 1803;Gray, 1825;Gray, 1838;Liang, 1976; Lin & Cheng, 1980 Liu, 1939; Odiera, et al 1987; Ota, H., 1991;Peters, 1881; Shibata, 1966;Stejneger, 1904; Stejneger, 1924; Szyndlar, 1984;Van Denburgh, 1912a;Van Denburgh, 1912b;Vogt, 1914;Walley, 1958a;Walley, 1958b;Walley, 1962. Teeth: Nagahama, 1973. Boulenger, 1917;Brygoo, 1988; Cochran, 1961; Crippen, 1962 Peters, 1881; Schegel, 1838;Schenkel, 1902; Selvin & Leviton, 1956; Smith, 1935Stejneger, 1904Stejneger, 1907; Stejneger, 1924;Van Denburgh, 1909;Van Denburgh, 1912a;Van Denburgh, 1912b;Vogt, 1914;Walley, 1958a; 1958b; Walley, 1962;Welch, et al, 1990.…”

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confidence: 99%

“…Ultrastructure Iwasaki & Miyata, 1985;Oka, 1972;Oka, 1976;Oka, 1989;Oka & Fujiwara, 1973;Oota, 1979;Oota & Sakurai, 1984; Taira & Mutoh, 1981;Uchida, 1980. Viscral Pouches: Oka, 1971. Zoogeography: Hatta, S., 1913;Hatta, S., 1921;Hatta, S. 1928;Kano, 1940;Kuroda, 1931;Okada, 1933b;Okada, 1940. TAXONOMIC INDEX Apeltonotus Boulenger, 1917. Apeltonotus dorsalis Boulenger, 1917; Takenaka, 1989.…”

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confidence: 99%

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