厦门大学生命科学学院寄生动物研究室,内蒙古呼伦贝尔盟畜牧兽医研究所,内蒙古呼伦贝尔盟畜牧兽医研究所,内蒙古呼伦贝尔盟畜牧兽医研究所,厦门大学生命科学学院寄生动物研究室,厦门大学生命科学学院寄生动物研究室,内蒙古呼伦贝尔盟畜牧兽医研究所,Center for Integrated BioSystems Utah State University,,厦门361005,海拉尔021000,海拉尔021000,海拉尔021000,厦门361005,厦门361005,海拉尔021000,Logan,Utah84321 USA
Studies on the alveolar Echinococcus species in northward daxingan mountains,Inner Mongolia,China.III. Echinococcus russicensis sp. nov.
Abstract：Adults of three alveolar Echinococcus species with different uterine structures were collected from Vulpes corsac, and different larval stages from Microtus brandti in northward pasture of Daxingan Mountains in Inner Mongolia. One of them is Echinococcus russicensis sp. nov. which has been called as Russia Echinococcus multilocularis and Echinococcus sp. in our published papers (Tang et al., 2001a,b,c,d,; 2004; 2006a,b; 2007). E. russicensis has a spherical uterus located at the top of gravid and early-gravid segments. The development of its metacestodes have been observed in naturally infected Microtus brandti and experimentally infected rodents. Its larger alveolar vesicles and brood capsules were formed by proliferation of the germinal cell layer attacheding on the inner surface of alveolar cysts, which were surrounded by host connective tissue, protoscoleces grew from the germinal cell layer and from the walls of reticular meshes in alveolar cysts.15 parts of 4 experimental lambs were intraperitoneally inoculated with finely minced infective vesicles of E. russicensis collected from experimentally infected mice, all results were negative. The metacestodes of E. russicensis with spherical uterus could not develop in herbivorous animals.
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