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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
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Your Position :Home->Past Journals Catalog->2017 Vol.36 No.2

Ultrastructural Study of the Tongue of Larus relictus
Author of the article:LIU Li1, ZHANG Le1, SUN Yan1, MIAO Chunlin2, ZHANG Gang3, LIU Xiaoguang1*
Author's Workplace:1. Faculty of Biological Science and Technology, Baotou Teachers' College, Baotou, Inner Mongolia Autonomous Region 014030, China;
2. Nanhai Wetland Scenic Area Management Office of Baotou, Baotou, Inner Mongolia Autonomous Region 014040, China;
3. Forestry Bureau of Wushenqi, Ordos, Inner Mongolia Autonomous Region 017300, China
Key Words:Larus relictus; habitat; tongue; ultrastructure
Abstract:In this study, the ultrastructure of the tongue of Larus relictus was observed using light and scanning electron microscopy. The tongue of L. relictus was triangular in shape, and comprised 3 different parts:the lingual apex, lingual body, and lingual root. The tongue fork had keratinized processes at the lingual apex; the lingual apex had a large number of epithelial cells, and the cell surfaces appear to form a fingerprint. The surface of the lingual body was smooth, and the epithelial cells were elongated with cell surface microridges. The surface of the lingual root had a small number of salivary gland openings. These results indicated that the structure of the tongue of L. relictus was adapted to collecting food. Moreover, the papillae on the lingual mucosa were not perfectly developed and had a cone-shaped appearance, with a row-like distribution on the maxillary surface and at the boundary between the body and root, and the papillae ends point toward the intra-oral cavity. Taste buds in the lingual mucosa were also underdeveloped. Obvious differences existed in the characteristics of the oral structure between L. relictus and other members of the Laridae family, which may be related to habitat deterioration, changes in food type, or food scarcity.
2017,36(2): 181-186 收稿日期:2016-10-12
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