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Kandyel RM, El Basyouny HA, El-Nagar S, Madkour N, Massoud D, Almadiy AA, Albogami B, Alasmari S, Abumandour M. Lingual adaptations of the Tarentola annularis with new insights into its papillary system adaptations: Ultrastructure, histochemistry, and immunohistochemical observations. Tissue Cell 2024; 88:102366. [PMID: 38640599 DOI: 10.1016/j.tice.2024.102366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 03/17/2024] [Accepted: 03/20/2024] [Indexed: 04/21/2024]
Abstract
Our research aims to conduct a comprehensive ultrastructural, histochemical, and immunohistochemical examination of Tarentola annularis' tongue, utilizing various techniques such as light, scanning electron microscopy, and morphometric analysis. The complex papillary system consisted of four conical subtypes and one filiform type. The apex carried three conical subtypes (elongated, quadrilateral, and round); the midtongue carried two papillary types (quadrilateral conical and rectangular pointed filiform); and the hindtongue carried two conical subtypes (quadrilateral and elongated serrated). The dorsal papillary surface carried little taste pores on the foretongue and taste buds on the midtongue. The foretongue had a slightly stratum corneum that spread to coat the papillae, while the mid- and hindtongue did not. The glands are absent from the foretongue but are found in the interpapillary spaces of the mid- and hindtongue. Histochemical analysis reveals the presence of collagen fibers in the muscle bundles and the papillary core. The midtongue glands exhibited a strong reaction to AB and PAS, while the hindtongue showed moderate AB positivity and strong positive PAS. The cytokeratin expression in the foretongue papilla was positive, whereas the papillae in other regions were negative. The Tarentola annularis exhibits distinctive lingual structural characteristics due to its varied feeding habits influenced by available food particles.
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Affiliation(s)
- Ramadan M Kandyel
- Department of Zoology, Faculty of Science, Tanta University, Egypt; Department of Biology, Faculty of Arts and Sciences, Najran University, Najran, Saudi Arabia.
| | | | - Sahar El-Nagar
- Department of Animal Wealth Development, Faculty of Veterinary Medicine, Kafrelsheikh University, 33516, Egypt
| | - Naglaa Madkour
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
| | - Diaa Massoud
- Department of Biology, College of Science, Jouf University, P.O. Box 2014, Sakaka, Al-Jouf, Saudi Arabia; Department of Zoology, Faculty of Science, Fayoum University, Fayoum, Egypt
| | - Abdulrhman A Almadiy
- Department of Biology, Faculty of Arts and Sciences, Najran University, Najran, Saudi Arabia
| | - Bader Albogami
- Department of Biology, Faculty of Arts and Sciences, Najran University, Najran, Saudi Arabia
| | - Saeed Alasmari
- Department of Biology, Faculty of Arts and Sciences, Najran University, Najran, Saudi Arabia
| | - Mohamed Abumandour
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt.
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Kandyel RM, Choudhary OP, El-Nagar SH, Miles DB, Abumandour M. Tongue of the Egyptian Endemic Bridled Skink ( Heremites vittatus; Olivier, 1804): Gross, Electron Microscopy, Histochemistry, and Immunohistochemical Analysis. Animals (Basel) 2023; 13:3336. [PMID: 37958091 PMCID: PMC10649973 DOI: 10.3390/ani13213336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 10/20/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
The present study used light and scanning electron microscopy to describe the integrative morphological description of the tongue and laryngeal mound of Heremites vittatus, an endemic lizard of Saharan Africa. Additionally, ultrastructure, histology, histochemistry, and immunohistochemical approaches were used to characterize the lingual apparatus adaptations. In the present study, Heremites vittatus consisted of a complex lingual papillary system in which the ventral apical surface of the foretongue comprised conical papillae. The dorsal surface consisted of different filiform papillary (papillae filiformes) types: the anterior section had two types (bifid and pointed), and the posterior section had four types (triangular, trifid, quadrifid, and pentafid) papillae. The dorsal midtongue surface exhibits scale-like, serrated filiform papillae with anterior gland openings. The hindtongue consisted of two overlapping filiform papillae: scale-like, board-serrated papillae on the median portion and finger-like papillae on the wings. The dorsal surface of the laryngeal mound had 18 longitudinal folds with glandular openings. Histologically, the foretongue was covered by a slightly keratinized layer that was absent in the mid- and hindtongue. The lingual glands were absent from the foretongue but present in the interpapillary space in the mid- and hindtongues. We observed a few rounded taste buds in the conical papilla epithelium. Histochemical analysis revealed strong glandular Alcian Blue (AB)-positive and Periodic Acid-Schiff (PAS)-positive reactions. Immunohistochemistry showed strong cytokeratin immunopositivity in all parts of the tongue. In conclusion, the obtained data about the lingual characterizations have been consistent with the active foraging behavior of the species and its environmental conditions.
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Affiliation(s)
- Ramadan M. Kandyel
- Department of Zoology, Faculty of Science, Tanta University, Tanta 31527, Egypt
- Department of Biology, Faculty of Arts and Sciences, Najran University, Najran 61441, Saudi Arabia
| | - Om Prakash Choudhary
- Department of Veterinary Anatomy, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University (GADVASU), Rampura Phul, Bathinda 151103, Punjab, India
| | - Sahar H. El-Nagar
- Department of Animal Wealth Development, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafr El-Sheikh 33516, Egypt
| | - Donald B. Miles
- Department of Biological Sciences, Ohio Center for Ecological and Evolutionary Studies, Ohio University, Athens, OH 45701, USA
| | - Mohamed Abumandour
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Alexandria University, Alexandria 21321, Egypt
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Canei J, Trupia A, Nonclercq D. Cytological analysis of integumentary and muscular adaptations in three sand-dwelling marine teleosts, Ammodytes tobianus (Ammodytidae), Gorgasia preclara (Congridae) and Heteroconger hassi (Congridae) (Teleostei; Actinopterygii). JOURNAL OF FISH BIOLOGY 2020; 97:1097-1112. [PMID: 32705684 PMCID: PMC7590194 DOI: 10.1111/jfb.14472] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 07/13/2020] [Accepted: 07/20/2020] [Indexed: 06/11/2023]
Abstract
Sandy bottoms are a ubiquitous environment found from sea bottoms to intertidal and freshwater zones. They are inhabited by many invertebrates and vertebrates which have developed morphological and physiological adaptations to sustain life under these particular conditions. Sandy habitats exhibit three potential constraints: abrasion, hypoxia and mechanical resistance. Here, three teleost species living in sandy environments were investigated: Ammodytes tobianus (Ammodytidae), Gorgasia preclara and Heteroconger hassi (Congridae). These teleost fishes were studied for their integument and muscular systems, which are potentially subject to sand abrasion and hypoxia, respectively. Based on histochemistry and transmission electron microscopy, we found the complex mucus system of G. preclara and H. hassi consists of two types of goblet cells and one type of sacciform cell. The secretions of both species are made of complex polysaccharides. In contrast, the scaly integument of A. tobianus has only a few goblet cells and no sacciform cells. We also highlighted, by immunohistochemistry, that the epidermal cell proliferation was much higher for this latter species, potentially resulting from the high rate of sand abrasion when A. tobianus buries itself quickly in the substrate. For all species, the major muscle fibre type was revealed by histoenzymology and corresponds to fast glycolytic fibres followed by intermediate fibres with slow fibres in the lowest proportion. Ammodytes tobianus possesses the highest fast fibre proportion (about 87% for A. tobianus and 75-78% for both garden eels). Our results provide new insights into the previously poorly studied teleost species, such as G. preclara, and allow us to highlight the complex skin histology of both garden eel species. Furthermore, the previously unknown muscle typing of these three species was determined.
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Affiliation(s)
- Jérôme Canei
- Laboratory of HistologyBiosciences Institute, Faculty of Medicine and Pharmacy, University of MonsMonsBelgium
| | - Arnaud Trupia
- Laboratory of HistologyBiosciences Institute, Faculty of Medicine and Pharmacy, University of MonsMonsBelgium
| | - Denis Nonclercq
- Laboratory of HistologyBiosciences Institute, Faculty of Medicine and Pharmacy, University of MonsMonsBelgium
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Bels VL, Jamniczky HA, Montuelle S, Pallandre J, Kardong KV, Russell AP. Mechanics and kinematics of fluid uptake and intraoral transport in the leopard gecko. J Zool (1987) 2020. [DOI: 10.1111/jzo.12763] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- V. L. Bels
- Muséum National d’Histoire Naturelle Sorbonne Université Institut de Systématique, Evolution, Biodiversité UMR 7205 CNRS/MNHN/EPHE/UA Paris Cedex 05 France
| | - H. A. Jamniczky
- Department of Cell Biology and Anatomy Cumming School of Medicine University of Calgary Calgary AB Canada
| | - S. Montuelle
- Department of Biomedical Sciences Heritage College of Osteopathic Medicine Ohio University Warrensville Heights OH USA
| | - J.‐P. Pallandre
- Muséum National d’Histoire Naturelle Sorbonne Université Institut de Systématique, Evolution, Biodiversité UMR 7205 CNRS/MNHN/EPHE/UA Paris Cedex 05 France
| | - K. V. Kardong
- School of Biological Sciences Washington State University Pullman WA USA
| | - A. P. Russell
- Department of Biological Sciences University of Calgary Calgary AB Canada
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Abbate F, Guerrera MC, Levanti M, Laurà R, Montalbano G, Cavallaro M, Germanà A. The tongue of Leopard Gecko (Eublepharis macularius): LM, SEM and confocal laser study. Anat Histol Embryol 2019; 49:51-59. [PMID: 31512785 DOI: 10.1111/ahe.12483] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 08/04/2019] [Indexed: 12/01/2022]
Abstract
The leopard gecko is a crepuscular and insectivorous reptile. The role of the tongue in this reptile is fundamental for the prey capture and ingestion and is not related with eyes cleaning as usual in other geckos. The elongated tongue can be divided into a foretongue with a slightly bifurcated apex and a hindtongue. Scanning electron microscopy demonstrated that several different papillae are present on the dorsal surface, foliate and dome-shaped in the foretongue, becoming thicker and stouter with reduced interpapillary spaces in the lateral parts. The hindtongue is characterised by wide foliate papillae with indented margins and deep fissures of the mucosa. Light microscopy showed the presence of a stratified slightly keratinized squamous epithelium in the apex of the foretongue, a stratified non-keratinized squamous epithelium in the fore and in the hindtongue. In the foretongue, numerous muciparous caliciform cells were observed. Moreover, the presence of taste buds on the tongue ventral surface was demonstrated for the first time in this species and the confocal laser study revealed a strong immunoreactivity for the S-100 protein in the sensory cells. Therefore, the results obtained could give a contribution to the knowledge of the tongue anatomy and are a basis for eventual further studies regarding the feeding habits in a reptile become a popular pet.
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Affiliation(s)
- Francesco Abbate
- Department of Veterinary Sciences, University of Messina, Messina, Italy
| | | | - Maria Levanti
- Department of Veterinary Sciences, University of Messina, Messina, Italy
| | - Rosaria Laurà
- Department of Veterinary Sciences, University of Messina, Messina, Italy
| | | | - Mauro Cavallaro
- Department of Veterinary Sciences, University of Messina, Messina, Italy
| | - Antonino Germanà
- Department of Veterinary Sciences, University of Messina, Messina, Italy
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Bels V, Paindavoine AS, Zghikh LN, Paulet E, Pallandre JP, Montuelle SJ. Feeding in Lizards: Form–Function and Complex Multifunctional System. FEEDING IN VERTEBRATES 2019. [DOI: 10.1007/978-3-030-13739-7_13] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Iwasaki SI, Erdoğan S, Asami T. Evolutionary Specialization of the Tongue in Vertebrates: Structure and Function. FEEDING IN VERTEBRATES 2019. [DOI: 10.1007/978-3-030-13739-7_10] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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