Lingual Ultrastructural and Histochemical Study in the Patagonian Mara (Rodentia: Caviidae, <i>Dolichotis patagonum</i>) in Relation to Other Hystricomorphs
The study describes the ultrastructure of the tongue in the Patagonian mara (<i>Dolichotis patagonum</i>) using light and scanning electron microscopy. Histochemical methods were used for evaluation of lingual salivary glands. The tongue is divided into a small and rounded apex, a narrow...
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MDPI AG
2023-12-01
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| Series: | Animals |
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| Online Access: | https://www.mdpi.com/2076-2615/13/24/3889 |
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| author | Petr Čížek Karolina Goździewska-Harłajczuk Pavla Hamouzová Joanna Klećkowska-Nawrot Pavel Kvapil |
| author_facet | Petr Čížek Karolina Goździewska-Harłajczuk Pavla Hamouzová Joanna Klećkowska-Nawrot Pavel Kvapil |
| author_sort | Petr Čížek |
| collection | DOAJ |
| description | The study describes the ultrastructure of the tongue in the Patagonian mara (<i>Dolichotis patagonum</i>) using light and scanning electron microscopy. Histochemical methods were used for evaluation of lingual salivary glands. The tongue is divided into a small and rounded apex, a narrow corpus, and a significantly wider radix, with a well-developed lingual prominence. The tip of the apex is free of papillae. The caudal part of the apex and the corpus are covered by filiform papillae. Round fungiform papillae are scattered among them. Papillae on the narrow stalk are conical. The radix contains caudally bent papillae forming wide flat prominences, slender, hook shaped filiform papillae, foliate papillae, and two oval vallate papillae. Taste buds were found on the lateral sides of the foliate and vallate papillae. Purely serous salivary glands are beneath the vallate and foliate papillae. Serous acini and mucous tubules are in the lingual radix. The Patagonian mara is the only hystricomorph rodent with described hyaline cartilage strengthening the lingual radix. Some typical signs of adaptation to herbivorous diet were found. The structure of the tongue is adapted to grass-feeding, as grasses form the main component of their diet. |
| first_indexed | 2024-03-08T21:03:41Z |
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| institution | Directory Open Access Journal |
| issn | 2076-2615 |
| language | English |
| last_indexed | 2024-03-08T21:03:41Z |
| publishDate | 2023-12-01 |
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| record_format | Article |
| series | Animals |
| spelling | doaj.art-8b75df477da048bfa7e675387e05a5af2023-12-22T13:47:45ZengMDPI AGAnimals2076-26152023-12-011324388910.3390/ani13243889Lingual Ultrastructural and Histochemical Study in the Patagonian Mara (Rodentia: Caviidae, <i>Dolichotis patagonum</i>) in Relation to Other HystricomorphsPetr Čížek0Karolina Goździewska-Harłajczuk1Pavla Hamouzová2Joanna Klećkowska-Nawrot3Pavel Kvapil4Department of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, University of Veterinary Sciences Brno, 612 42 Brno, Czech RepublicDepartment of Biostructure and Animal Physiology, Faculty of Veterinary Medicine, Wrocław University of Life Sciences, 51-631 Wrocław, PolandDepartment of Physiology, Faculty of Veterinary Medicine, University of Veterinary Sciences Brno, 612 42 Brno, Czech RepublicDepartment of Biostructure and Animal Physiology, Faculty of Veterinary Medicine, Wrocław University of Life Sciences, 51-631 Wrocław, PolandLjubljana Zoo, 1000 Ljubljana, SloveniaThe study describes the ultrastructure of the tongue in the Patagonian mara (<i>Dolichotis patagonum</i>) using light and scanning electron microscopy. Histochemical methods were used for evaluation of lingual salivary glands. The tongue is divided into a small and rounded apex, a narrow corpus, and a significantly wider radix, with a well-developed lingual prominence. The tip of the apex is free of papillae. The caudal part of the apex and the corpus are covered by filiform papillae. Round fungiform papillae are scattered among them. Papillae on the narrow stalk are conical. The radix contains caudally bent papillae forming wide flat prominences, slender, hook shaped filiform papillae, foliate papillae, and two oval vallate papillae. Taste buds were found on the lateral sides of the foliate and vallate papillae. Purely serous salivary glands are beneath the vallate and foliate papillae. Serous acini and mucous tubules are in the lingual radix. The Patagonian mara is the only hystricomorph rodent with described hyaline cartilage strengthening the lingual radix. Some typical signs of adaptation to herbivorous diet were found. The structure of the tongue is adapted to grass-feeding, as grasses form the main component of their diet.https://www.mdpi.com/2076-2615/13/24/3889herbivorous diethistochemistryhystricomorphlingual papillaelingual prominencesalivary glands |
| spellingShingle | Petr Čížek Karolina Goździewska-Harłajczuk Pavla Hamouzová Joanna Klećkowska-Nawrot Pavel Kvapil Lingual Ultrastructural and Histochemical Study in the Patagonian Mara (Rodentia: Caviidae, <i>Dolichotis patagonum</i>) in Relation to Other Hystricomorphs Animals herbivorous diet histochemistry hystricomorph lingual papillae lingual prominence salivary glands |
| title | Lingual Ultrastructural and Histochemical Study in the Patagonian Mara (Rodentia: Caviidae, <i>Dolichotis patagonum</i>) in Relation to Other Hystricomorphs |
| title_full | Lingual Ultrastructural and Histochemical Study in the Patagonian Mara (Rodentia: Caviidae, <i>Dolichotis patagonum</i>) in Relation to Other Hystricomorphs |
| title_fullStr | Lingual Ultrastructural and Histochemical Study in the Patagonian Mara (Rodentia: Caviidae, <i>Dolichotis patagonum</i>) in Relation to Other Hystricomorphs |
| title_full_unstemmed | Lingual Ultrastructural and Histochemical Study in the Patagonian Mara (Rodentia: Caviidae, <i>Dolichotis patagonum</i>) in Relation to Other Hystricomorphs |
| title_short | Lingual Ultrastructural and Histochemical Study in the Patagonian Mara (Rodentia: Caviidae, <i>Dolichotis patagonum</i>) in Relation to Other Hystricomorphs |
| title_sort | lingual ultrastructural and histochemical study in the patagonian mara rodentia caviidae i dolichotis patagonum i in relation to other hystricomorphs |
| topic | herbivorous diet histochemistry hystricomorph lingual papillae lingual prominence salivary glands |
| url | https://www.mdpi.com/2076-2615/13/24/3889 |
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