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Postnatal Development of Taste Buds and α-Gustducin Expression in Mouse Circumvallate Papilla
Gen-Hua Zhang1,2, Hong-Tao Li1, Lei-Lei Li1, Shao-Ping Deng1*
1Sense Science Laboratory, Zhejiang Gongshang University, Hangzhou 310035, China;2Changshu Institute of Technology, Changshu 215500, China
Abstract: Postnatal changes in taste bud number， morphology and the expression of α-gustducin in mouse circumvallate papilla were studied using the histological microscopy and immunofluorescent confocal microscopy. No taste bud was found in the mouse circumvallate papilla on the day of birth; The number and the size of taste buds were increased rapidly before the 4 weeks after the postnatal day and there were significant differences at different postnatal days; The morphology and size of isolated taste buds at the different postnatal dates were correspondent with the histological results. The number of taste buds containing α-gustducin-positive cells and the number of α-gustducin-positive cells per each taste bud were increased significantly during postnatal development. The results indicate that there was an adaptation process between conformation and function of the taste buds in the development.
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