Comparative scanning electron-microscopic study of the lingual papillae in two species of domestic mammals (Equus caballus and Bos taurus). 1. Gustatory Papillae.
Abstract: The morphological characteristics of bovine and equine gustatory lingual papillae are compared by scanning electron microscopy. The fungiform papillae in the cow have a shape that corresponds to their name, while in the horse, they almost do not emerge from the surface of the tongue. These papillae show taste pores in both species. The vallate papillae, four times larger in the horse than in the cow, show a complex organization of papillae and secondary grooves in the horse. In the cow, they occur single and are surrounded by a thick annular pad of lingual mucosa. Taste pores have been observed in the vallate papillae of both species, whereas in the foliate papillae, they are present only in the horse. A characteristic distribution of stratified scales and channeled tracts is observed on the surface of all gustatory papillae in both species. The possible functional importance of each type of gustatory papilla is discussed on the basis of their morphostructural features.
Publication Date: 1986-01-01 PubMed ID: 3953255
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- Comparative Study
- Journal Article
Summary
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The research study delves into a comparative structural analysis of taste buds, also known as gustatory papillae, of two common domestic animals: the horse (Equus caballus) and the cow (Bos taurus). The methodology for the research involved the use of scanning electron microscopy.
Methodology and Observations
- The researchers used scanning electron microscopy to take a close look at the structure of the lingual papillae in both animals. This method of examination allowed for a detailed and accurate analysis and comparison of the structures under investigation.
- The study revealed distinctive structural patterns for both species. The bovine fungiform papillae exhibited a shape that aligns with its name while equine equivalents seem less prominent on the tongue’s surface.
- The vallate papillae, another type of taste bud, were found to be four times larger in horses than in cows. Additionally, the structure of these papillae in horses was found to be complex, with grooves and papillae, whereas in cows, they were single structures encircled by a thick ring of tongue mucosa.
Gustatory Papillae Distribution
- Stratified scales and channeled tracts, specific formations on the papillae, displayed a characteristic distribution in both species. They were found on all types of gustatory papillae.
- The researchers also noted the presence of taste pores in both kinds of papillae in both species, albeit with a notable difference. While the vallate papillae of both animals had these structures, the foliate papillae, another type of taste bud, had them only in horses.
Implications and Significance
- The observed differences in the structural features of the different types of gustatory papillae hint at possible functional variances. The study, however, refrains from detailing the exact implications of these findings.
- The reported difference in size, distribution, and structure could likely play a role in taste sensation or food preference in the two species and could aid in the understanding of the evolution of taste in mammals.
- Such detailed understanding of species-specific gustatory structures could also have potential applications in veterinary medicine and animal nutrition.
Cite This Article
APA
Chamorro CA, de Paz P, Sandoval J, Fernandez JG.
(1986).
Comparative scanning electron-microscopic study of the lingual papillae in two species of domestic mammals (Equus caballus and Bos taurus). 1. Gustatory Papillae.
Acta Anat (Basel), 125(2), 83-87.
Publication
Researcher Affiliations
MeSH Terms
- Animals
- Cattle
- Horses
- Microscopy, Electron, Scanning
- Mouth Mucosa / ultrastructure
- Species Specificity
- Tongue / ultrastructure
Citations
This article has been cited 5 times.- Cho G, Kim M, Lee S, Kim C, Won C. Scanning Electron Microscopic Study of the Developing Vallate Papillaein the Korean Native Goat (Capra hircus).. Dev Reprod 2016 Dec;20(4):283-288.
- Pastor JF, Barbosa M, De Paz FJ. Morphological study of the lingual papillae of the giant panda (Ailuropoda melanoleuca) by scanning electron microscopy.. J Anat 2008 Feb;212(2):99-105.
- Scala G, Corona M, Perrella A, de Girolamo P, Vittoria A, Scala F, Pelagalli GV. The innervation of the fetal buffalo tongue.. Vet Res Commun 2005 Aug;29 Suppl 2:203-6.
- Agungpriyono S, Yamada J, Kitamura N, Nisa C, Sigit K, Yamamoto Y. Morphology of the dorsal lingual papillae in the lesser mouse deer, Tragulus javanicus.. J Anat 1995 Dec;187 ( Pt 3)(Pt 3):635-40.
- Qayyum MA, Fatani JA, Mohajir AM. Scanning electron microscopic study of the lingual papillae of the one humped camel, Camelus dromedarius.. J Anat 1988 Oct;160:21-6.
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