Histological and Lectin Histochemical Studies on the Olfactory andRespiratory Mucosae of the Sheep

[摘要] References(24)Cited-By(4)The olfactory and respiratory mucosae of the Corriedale sheep were examinedusing lectin histochemistry in order to clarify the histochemical and glycohistochemicaldifferences between these two tissues. The olfactory epithelium was stained with 13lectins out of 21 lectins examined, while the respiratory epithelium was positive to 16lectins. The free border of both of the olfactory and respiratory epithelia was stainedwith 12 lectins: Wheat germ agglutinin (WGA), succinylated-wheat germ agglutinin (s-WGA),Lycopersicon esculentum lectin (LEL), Solanumtuberosum lectin (STL), Datura stramonium lectin (DSL),Soybean agglutinin (SBA), Bandeiraea simplicifolia lectin-I (BSL-I),Ricinus communis agglutinin-I (RCA-120), Erythrinacristagalli lectin (ECL), Concanavalin A (Con A), Phaseolusvulgaris agglutinin-E (PHA-E) and Phaseolus vulgarisagglutinin-L (PHA-L). The associated glands of the olfactory mucosa, Bowman’s glands, werestained with 13 lectins. While both the goblet cells and mucous nasal glands were stainedwith 8 lectins; five of them (WGA, s-WGA, STL, Vicia villosa agglutinin(VVA) and ECL) were mutually positive among the Bowman’s glands, mucous nasal glands andthe goblet cells. These findings indicate that the glycohistochemical characteristics ofthe free borders of both olfactory and respiratory epithelia are similar to each other,suggesting that secretions from the Bowman’s glands and those of the goblet cells andmucous nasal glands are partially exchanged between the surface of two epithelia tocontribute the functions of the respiratory epithelium and the olfactory receptor cells,respectively.

[学科分类] 兽医学

[关键词] glycoconjugates;olfactory system;ruminants