A Golgi study on the main olfactory bulb in the snake Elaphe quadrivirgata

Iwahori, Nobuharu; Nakamura, Kaori; Mameya, Chisako

doi:10.1016/0168-0102(89)90003-5

Cited by 15 publications

(14 citation statements)

References 25 publications

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“…These histological properties conformed to previous reports by a Golgi study [15,16]. In the glomerular layer, many periglomerular cells were observed in both the main and accessory olfactory bulbs.…”

Section: Discussionsupporting

confidence: 77%

“…Snakes sample environmental substances by the tongue-flicking and deliver concentrated chemicals to the vomeronasal epithelium, and the information acquired with the tongue-flicking is mediated by both the main olfactory system and the vomeronasal system [13,36]. Topographically, the size of the accessory olfactory bulb is as large as that of the main olfactory bulb in snakes [15,16], although the size of the accessory olfactory bulb is much smaller than that of the main olfactory bulb in many other vertebrate species. Histologically, both the main and accessory olfactory bulbs in snakes are divided into 6 layers (the nerve, glomerular, mitral cell, internal plexiform, granule cell and ependymal cell layers), and the histological properties of the constituent cells are similar between these olfactory bulbs [15,16].…”

mentioning

confidence: 98%

“…Topographically, the size of the accessory olfactory bulb is as large as that of the main olfactory bulb in snakes [15,16], although the size of the accessory olfactory bulb is much smaller than that of the main olfactory bulb in many other vertebrate species. Histologically, both the main and accessory olfactory bulbs in snakes are divided into 6 layers (the nerve, glomerular, mitral cell, internal plexiform, granule cell and ependymal cell layers), and the histological properties of the constituent cells are similar between these olfactory bulbs [15,16]. However, there are few detailed reports on the sublamination and cell distribution in these layers of the main and accessory olfactory bulbs in snakes.…”

mentioning

confidence: 99%

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Histological and Lectin Histochemical Studies on the Main and Accessory Olfactory Bulbs in the Japanese Striped Snake, <i>Elaphe quadrivirgata</i>

et al. 2013

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ABSTRACT. The main and accessory olfactory bulbs were examined by histological methods and lectin histochemistry in the Japanese striped snake. As the results, the histological properties are similar between the main olfactory bulb and the accessory olfactory bulb. In lectin histochemistry, 21 lectins used in this study showed similar binding patterns in the main olfactory bulb and the accessory olfactory bulb. In detail, 15 lectins stained these olfactory bulbs with similar manner, and 6 lectins did not stain them at all. Two lectins, Lycopersicon esculentum lectin (LEL) and Solanum tuberosum lectin (STL), stained the nerve and glomerular layers and did not stain any other layers in both olfactory bulbs. Four lectins, Soybean agglutinin (SBA), Vicia villosa agglutinin (VVA), Peanut agglutinin (PNA) and Phaseolus vulgaris agglutinin-L (PHA-L) stained the nerve and glomerular layers more intensely than other layers in both olfactory bulbs. In addition, VVA showed the dot-like stainings in the glomeruli of both olfactory bulbs. These findings suggest that the degree of development and the properties of glycoconjugates are similar between the main olfactory bulb and the accessory olfactory bulb in the Japanese striped snake.

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Section: Discussionsupporting

confidence: 77%

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confidence: 98%

mentioning

confidence: 99%

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Histological and Lectin Histochemical Studies on the Main and Accessory Olfactory Bulbs in the Japanese Striped Snake, <i>Elaphe quadrivirgata</i>

et al. 2013

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“…This cell type has been described in detail in a number of animals, including other teleosts (Kosaka and Hama, 1982;Oka, 1983;Alonso et al, 1988;Fujita et al, 1988;Satou, 1990), cyclostomes (Johnston, 1902;Heier, 1948;Iwahori et al, 1987), elasmobranchs (Iwahori et al, 1992;Gaziadei, 1993, 1994), amphibians (Scalia et al, 1991;Jiang and Holley, 1992), reptiles (Garcia-Verdugo et al, 1986;Iwahori et al, 1989), and mammals (Price and Powell, 1970;Macrides and Schneider, 1982;Mori et al, 1983;Lopez-Mascaraque et al, 1990;Malun and Brunjes, 1996). While mitral cell structure varies between the animal groups studied, in general the morphology remains consistent within the animal groups.…”

Section: Discussionmentioning

confidence: 93%

Mitral cells in the olfactory bulb of adult zebrafish (Danio rerio): Morphology and distribution

Fuller

Yettaw

Byrd

2006

J of Comparative Neurology

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The mitral cell is the primary output neuron and central relay in the olfactory bulb of vertebrates. The morphology of these cells has been studied extensively in mammalian systems and to a lesser degree in teleosts. This study uses retrograde tract tracing and other techniques to characterize the morphology and distribution of mitral cells in the olfactory bulb of adult zebrafish, Danio rerio. These output neurons, located primarily in the glomerular layer and superficial internal cell layer, had variable-shaped somata that ranged in size from 4-18 microm in diameter and 31-96 microm2 in cross-sectional area. The mitral cells exhibited two main types of morphologies with regard to their dendrites: the unidendritic morphology was a single primary dendrite with one or more tufts, but multidendritic cells with several dendritic projections also were seen. The axons of these cells projected to either the medial or the lateral olfactory tract and, in general, the location of the cell on the medial or lateral side of the bulb was indicative of the tract to which it would project. Further, this study shows that the majority of zebrafish mitral cells likely innervate a single glomerulus rather than multiple glomeruli. This information is contrary to the multiple innervation pattern suggested for all teleost mitral cells. Our findings suggest that mitral cells in zebrafish may be more similar to mammalian mitral cells than previously believed, despite variation in size and structure. This information provides a revised anatomical framework for olfactory processing studies in this key model system.

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“…The olfactory fibers form a dense plexus that reaches the entire surface of the olfactory bulb, terminating in two to four rows of small glomeruli (30-40 gm in lizard, Garcia-Verdugo et al 1986). Although periglomerular cells have been observed within this layer, their axon terminals could not be located (Iwahori et al 1989). The mitral layer is wide and loosely arranged.…”

Section: Amphibians Reptilesmentioning

confidence: 99%

Mitral cell dendrites: a comparative approach

Dryer

Graziadei

1994

Anat Embryol

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Phylogenetically persistent structures such as the mitral cells of the vertebrate olfactory bulb undergo changes in their dendritic arbor in the course of evolution. The morphology of mitral cells and the main elements of the olfactory bulb circuit in all classes of vertebrates are reviewed in this paper. Most of the neuronal elements found in the mammalian olfactory bulb are present in anamniotes. However, in contrast to those of amniotes, the mitral cells of most anamniotes lack basal dendrites, and periglomerular cells are absent in fish. This suggests a different circuitry and therefore drastic changes in the processing of olfactory information within the olfactory bulb. Lateral inhibition, conferred by basal dendrites in anamniotes, must then utilize other mechanisms in anamniotes. Moreover, the marked segregation of olfactory inputs onto mammalian mitral cells is less obvious in mitral cells of anamniotes that lack basal dendrites. The general role of dendrites, including those of mitral cells, is discussed in the light of increasing evidence for dendritic excitability. The evolutionary significance of mitral cell basal dendrites is also discussed.

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A Golgi study on the main olfactory bulb in the snake Elaphe quadrivirgata

Cited by 15 publications

References 25 publications

Histological and Lectin Histochemical Studies on the Main and Accessory Olfactory Bulbs in the Japanese Striped Snake, <i>Elaphe quadrivirgata</i>

Histological and Lectin Histochemical Studies on the Main and Accessory Olfactory Bulbs in the Japanese Striped Snake, <i>Elaphe quadrivirgata</i>

Mitral cells in the olfactory bulb of adult zebrafish (Danio rerio): Morphology and distribution

Mitral cell dendrites: a comparative approach

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