マウス寄生Eimeria krijgsmanniの生活史

DOI 日本農学文献記事索引 Web Site Web Site 被引用文献4件 参考文献15件
  • MATSUI Toshihiro
    Department of Infectious Diseases Kyorin University School of Medicine
  • FUJINO Takashi
    Department of Infectious Diseases Kyorin University School of Medicine
  • KOBAYASHI Fumie
    Department of Infectious Diseases Kyorin University School of Medicine
  • MORITA Tatsushi
    Department of Parasitology, Nippon Veterinary and Animal Science University
  • IMAI Soichi
    Department of Parasitology, Nippon Veterinary and Animal Science University

書誌事項

タイトル別名
  • Life Cycle of Eimeria krijgsmanni-Like Coccidium in the Mouse (Mus musculus)

この論文をさがす

抄録

Life cycle of Eimeria krijgsmanni-like coccidium isolated from the feces of naturally infected mice purchased from commercial sources was examined. The parasite was purified by single oocyst isolation and maintained by passage in the mice before experiments. The sporulated oocysts were ovoid or ellipsoid, measuring 19.3 × 14.8 μm on average. One or two small polar granules were present. Micropyle and oocyst residuum were absent. Sporocysts were ellipsoid, measuring 11.6 × 7.2 μm on average with a small Stieda body and sporocyst residuum. Six groups of respective 5 mice (4-week-old) were inoculated with doses varying from 2.0 × 101 to 106 oocysts. All the mice examined began to shed oocysts from 7 day postinoculation (PI) and their maximum number of oocysts per gram of feces were 106 on day 8 PI. Patency was 6 or 7 days. This parasite had severe virulence to the mice that is, the mice given 106 oocysts showed anorexia, diarrhoea and rough hair from 1 day and all of them died on day 3 PI. The mice given 103 or more oocysts showed the clinical signs described above from day 5 and 4 of them received 105 died on day 9 or 10 PI. The parasites occurred within the epithelial cells of cecum, colon and rectum of infected mice. Sporozoites, 13.9 × 3.0 μm, with two large refractil bodies on side of the nucleus located subcentrally were observed on day 1 and 2 PI. Merozoites were first observed at 24 hr PI, and sexual stages were found from 4 day PI. No parasites were detected in the small intestine and mecenteric lymph nodes.<br>

収録刊行物

被引用文献 (4)*注記

もっと見る

参考文献 (15)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ