Department of Veterinary Sciences, University of Messina, Messina, Italy.
Anat Histol Embryol. 2022 Jan;51(1):103-111. doi: 10.1111/ahe.12769. Epub 2021 Nov 24.
The blackspot seabream (Pagellus bogaraveo, Brünnich, 1768) is an omnivorous, predominantly carnivorous fish. In aquaculture, it is fed with pellets rich in proteins and fat. The morphological and functional aspects of the fish tongue, the feeding modality and the tasting capacity are strictly related. Therefore, the aim of this study was to describe by scanning electron, light and confocal laser microscopy, the morphological characteristics of the tongue in this species. It showed an apex, a body and a root. There were rows of teeth on the edges of the mouth and taste pores on all the tongue dorsal surface with folds and furrows. In addition, body and root showed several fungiform-like papillae in the mucosa of the folds, covered by a weakly keratinized stratified squamous epithelium, can be observed. The papillae were innervated by S100 positive fibres. In the apex, a mesenchymal tissue with vimentin positive star-shaped stem cells was evident. The results could give a support for a wider use of the blackspot seabream as a farmed species, considering the morphological data as correlated with the potentiality of food discrimination. This provides a basis for possible applications in feeding strategies. The presence, localization and characteristics of the mesenchymal stem cells, as seen also in previous studies, could represent a further basis for future applications in clinical trials.
黑星石斑鱼（Pagellus bogaraveo，Brünnich，1768）是一种杂食性、主要以肉食为主的鱼类。在水产养殖中，它主要以富含蛋白质和脂肪的颗粒饲料为食。鱼舌的形态和功能方面、摄食方式和味觉能力密切相关。因此，本研究旨在通过扫描电子显微镜、光镜和共聚焦激光显微镜描述该物种舌的形态特征。结果表明，黑星石斑鱼的舌有舌尖、舌体和舌根三部分组成。口缘有齿状结构，舌背有大量味蕾，舌背表面有褶皱和沟纹。此外，在褶皱的黏膜中可以观察到舌体和舌根上有几排菌状乳突，这些乳突被弱角化复层扁平上皮覆盖。乳突由 S100 阳性纤维支配。在舌尖，可见含有波形蛋白阳性星状干细胞的间充质组织。这些结果可能为更广泛地将黑星石斑鱼作为养殖物种提供支持，因为这些形态学数据与食物识别能力相关。这为可能的饲养策略提供了基础。间充质干细胞的存在、定位和特征，如前所述，也可能为未来的临床试验应用提供进一步的基础。
