@article{oai:nodai.repo.nii.ac.jp:02000205,
 author = {世取山, 結菜 and 佐々木, 剛},
 issue = {3},
 month = {Dec},
 note = {アズマモグラ（Mogera imaizumii）およびコウベモグラ（Mogera wogura）は，真無盲腸目モグラ科に属する哺乳類で，主にミミズや昆虫類を捕食する。舌は食物を最初に取り入れる消化器官で，舌乳頭には多くの味蕾が分布する。モグラ科では，味蕾を有する茸状乳頭と有郭乳頭，味蕾を持たない糸状乳頭の 3種類の舌乳頭が舌に存在することが報告されており，アズマモグラとコウベモグラでは舌上での茸状乳頭の分布に違いがあるとされている。また，これらの種の舌全体の味蕾の数や大きさなどの特徴は未だ調べられていない。そこで本研究はアズマモグラおよびコウベモグラの舌乳頭の味蕾の形態的特徴を外部形態観察と組織学的観察により調査し，2 種の違いおよび他の哺乳類と比較することでモグラ科の味蕾の特徴について検証した。コウベモグラの舌乳頭の外部形態観察を行ったところ，茸状乳頭は舌尖部から舌体部にかけて散在しており，Kobayashi et al.（1983）で観察されていない舌背の中央部分でも確認された。味蕾数はアズマモグラで 796 個，コウベモグラでは 459 個が確認できた。味蕾数は，草食性の哺乳類と比較して非常に少ない結果であった。平均味蕾サイズはアズマモグラで茸状乳頭が 37.9×28.1 µm, 有郭乳頭が 48.5×28.5 µm, コウベモグラでは，茸状乳頭が 35.0×24.5 µm, 有郭乳頭が 40.1×30.2 µm であった。これら 2 種の味蕾の大きさを比較したところ，有郭乳頭の高さで違いは見られたが，味蕾サイズはほぼ同等といえる結果であった。しかし，マウスの味蕾サイズと比べると本研究のモグラ類 2 種の味蕾サイズは明らかに小さかったが，味蕾サイズの他にも味蕾内の味細胞の割合も味覚処理の違いを反映すると考えられている。今後は，免疫組織化学染色を用いた味蕾内の味覚受容体の発現や同様な食性を持つ真無盲腸目のトガリネズミ科やハリネズミ科の種との比較研究が必要である。, Lesser Japanese mole (Mogera imaizumii) and large Japanese mole (Mogera wogura) are mammals belonging to the family Talpidae of the order Eulipotyphla, which feed mainly on earthworms and insects. The tongue is the first digestive organ to take in food, and many taste buds are distributed on the lingual papillae of the tongue. It has been reported that three types of lingual papillae are present on the tongue of Talpidae: fungiform papillae with taste buds, vallate papillae, and filiform papillae without taste buds. It is said that there is a difference in the distribution of fungiform papillae on the tongue between the lesser Japanese mole and the large Japanese mole. In addition, characteristics such as the number and size of taste buds across the tongue of these species have not yet been investigated. In this study, we investigated the morphological characteristics of the taste buds on the lingual papillae of the lesser Japanese mole and the large Japanese mole by using external morphological and histological observations, and compared the differences between the two species and those of other mammals to verify the characteristics of the taste buds of the Talpidae. Morphological observation of the lingual papillae of the large Japanese mole revealed that the fungiform papillae were scattered from the apex linguae to the corpus linguae, and were also found in the central part of the dorsum linguae, which was not observed by Kobayashi et al. (1983). The number of taste buds was confirmed to be 796 in the lesser Japanese mole and 459 in the large Japanese mole. The number of taste buds was very small compared to that of herbivorous mammals. The average size of the taste buds of the lesser Japanese mole was 37.9×28.1 µm for the fungiform papillae and 48.5×28.5 µm for the vallate papillae, while the average size of the taste buds of the large Japanese mole was 35.0×24.5 µm for the fungiform papillae and 40.1×30.2 µm for the vallate papillae. A comparison of the size of the taste buds of these two species revealed that the height of the vallate papillae was different, but the size of the taste buds was almost the same. However, the taste bud size of the two species in this study was clearly smaller than that of the mouse, but it is thought that the ratio of taste cells in the taste bud as well as the taste bud size reflects differences in taste processing.  In the future, it is necessary to investigate the expression of gustatory receptors in the taste buds using immunohistochemical staining, and to compare it with other species of Soricidae and Erinaceidae species that have similar feeding habits., E, 3, P, 論文, Article},
 pages = {84--91},
 title = {アズマモグラおよびコウベモグラの舌乳頭の味蕾},
 volume = {68},
 year = {2023}
}