The chicken anterior lingual glands: Structural study of carbohydrate chains by lectins and glycosidases

Menghi, G; Ceccarelli, Piero; Scocco, Paola; Pedini, V.

doi:10.1016/0003-9969(92)90101-d

Cited by 7 publications

(4 citation statements)

References 21 publications

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“…In this study, the strong PASpositive reaction was observed within the cells lining the laryngeal glands indicating the presence neutral mucopolysaccharides. This observation was similar to those reported in the lingual and laryngeal gland of quails (Liman et al, 2001), lingual glands of the chicken (Gargiulo et al, 1991) and quail (Menghi et al, 1993). Furthermore, sialidase-labile sialomucins (N-acetyl sialomucins) were PAS positive (Bancroft and Cook, 1984).…”

Section: Discussionsupporting

confidence: 88%

“…Furthermore, sialidase-labile sialomucins (N-acetyl sialomucins) were PAS positive (Bancroft and Cook, 1984). For this reason, the PAS-positive reaction could be revealed the presence of sialidase-labile sialomucins in the secretory parts of these glands as stated in chicken (Suprasert et al, 1986;Gargiulo et al, 1991;Menghi et al, 1993) and in the linguolaryngeal minor salivary glands of penguin (Samar et al, 1999).…”

Section: Discussionmentioning

confidence: 75%

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Macro- And Micromorphological Studies on the Laryngeal Mound of Turkey

2013

Assiut Veterinary Medical Journal

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Ten turkey birds were used to study the morphological features of the laryngeal mound grossly, histologically and by scanning electron microscopy. The laryngeal mound appeared to consist of two adjoining, raised; quadrilateral mucosal plates located in the floor of the pharynx. It divided into two parts by laryngeal inlet which was V-shaped. The length of the mound and its inlet measured about 20.45 mm and 13.6 mm respectively. By SEM, the dorsal surface of the laryngeal mound appeared scaly and carried few small conical papillae at its caudal part. At the caudal end of mound, the laryngeal papillae arranged into two rows of the papillae; each row included 20 -24 conical papillae. The rostral row consisted of long spinous conical papillae which carried numerous fine elongated papillae toward their bases and displayed two large gaint papillae on the midline. The caudal row had short conical papillae, their bases were surrounded by numerous thin thron-like papillae. Microscopically, the laryngeal mound covered with stratified squamous epithelium and gradually transformed to pseudostratified ciliated columnar epithelium (respiratory epithelium) at the laryngeal inlet. The cricoarytenoid salivary glands were presented in the lamina propria of the lateral part of the laryngeal mound. Their ducts penetrated the mucosa to open into the pharyngeal cavity. Each gland was formed from a varying number of units, each unit comprising many tubules, opening into a common cavity and possessing a common duct. The glandular tubules lined by mucous secreting cells showing strong PAS positive reaction.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionmentioning

confidence: 75%

Macro- And Micromorphological Studies on the Laryngeal Mound of Turkey

2013

Assiut Veterinary Medical Journal

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“…-Galactose and -N-acetylgalactosamine, that in mammal glycoconjugates are typically internal residues, in tilapine stomach glycoconjugates are mainly localized in terminal positions in addition to -galactose residues. This datum reflected the composition of cytoplasmic and surface bird glycoconjugates (Menghi et al, 1992(Menghi et al, , 1993) that have been found to be very different from those of mammals. Additional experiments are needed to explain the glucidic sequences of tilapine stomach glycoconjugates and permit a detailed comparison with those of birds and mammals.…”

Section: Discussionmentioning

confidence: 85%

Glycohistochemistry of the Tilapia spp. stomach

Scocco

Ceccarelli

Menghi

1996

Journal of Fish Biology

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A histochemical study using conventional and lectin methods was performed on the stomach of fasting and feeding adults of Tilapia spp. A battery of HRP-conjugated lectins combined with exoglycosidase digestion was used. The differences found in the epithelium, gastric pits and gastric glands between fasting and feeding subjects were related to the functional stages of the organ. Carbohydrate composition was also compared with that of mammals and birds. 1996 The Fisheries Society of the British Isles

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“…Furthermore, we found in two marine species (the kelp gull Larus dominicanus and the magellanic penguin Spheniscus magellanicus ) that minor salivary gland development was considerable in adult specimens, with abundant production of mucins enriched in glycoprotein and sulfated and nonsulfated glycosaminoglycans (Samar et al, 1995). In fact, mucins play an important role in many functions because of their content in numerous oligosaccharides that serve as lubricants and protective agents of the buccal cavity and digestive tube (Menghi et al, 1992).…”

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confidence: 99%

Histochemical study of Magellanic penguin (Spheniscus magellanicus) minor salivary glands during postnatal growth

et al. 1999

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The histological and histochemical features of the minor salivary glands during postnatal development have been generally associated with the type of food ingested. However, recent studies support the fact that these salivary glands develop independently of the diet; in fact, minor salivary glands have similar morphological and histochemical characteristics in adult individuals of species with different diet regimens. Thus, the aim of this study was to characterize the developmental morphology of the penguin minor salivary glands and to contrast them with minor salivary glands of other species. The tongue, palatine, and mouth cavity (bottom) minor salivary glands of newborn, 1- to 20-day-old, and adult magellanic penguins were studied with hematoxylin-eosin, periodic acid-Schiff, alcian blue, toluidine blue, and lectin histochemistry. Minor salivary glands were present at all ages, although they were only moderately developed in animals less than 15 days old. After this age, glands were abundant in all age groups; in addition, cells from the glandular epithelium were functionally mature and secreted mucins. Nevertheless, in newborn to 15-day-old penguins, mucins were located only at the apical cytoplasm of mucous cells. In all ages, mucous cells displayed periodic acid-Schiff-positive, alcianophilic, and metachromatic reactions; among mucous cells, other orthochromatic cells appeared interspersed. From 15 days on, histochemical reactions became more intense until adulthood, and the cytoplasm of secretory cells was filled with glycoproteins and sulfomucins. Moreover, lectins bound to different oligosaccharides in mucous cells, depending on the stage of maturation of the glands. In conclusion, penguin minor salivary glands are already present at birth, and show progressive and quantitative increases in mucous secretion during postnatal development. These changes are necessary not only for nutrient ingestion, but also for nonimmune protection of the buccal cavity.

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The chicken anterior lingual glands: Structural study of carbohydrate chains by lectins and glycosidases

Cited by 7 publications

References 21 publications

Macro- And Micromorphological Studies on the Laryngeal Mound of Turkey

Macro- And Micromorphological Studies on the Laryngeal Mound of Turkey

Glycohistochemistry of the Tilapia spp. stomach

Histochemical study of Magellanic penguin (Spheniscus magellanicus) minor salivary glands during postnatal growth

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