Variations in the morphology of Rhizomucor pusillus in granulomatous lesions of a Magellanic penguin (Spheniscus magellanicus)

Journal of Veterinary Medical Science

Kumiko KIMURA²  Yukio KUSUDA³  Ryo URAKAWA⁴  Yasuko HANAFUSA²  Fumiko SUZUTA⁴  Makoto HARITANI²  Shogo TANAKA¹ 

[1] Kyushu Research Station, National Institute of Animal Health, National Agriculture and Food Research Organization (NARO), Chuzan, Kagoshima, Kagoshima 891�?0105, Japan;National Institute of Animal Health, National Agriculture and Food Research Organization (NARO), Kannondai, Tsukuba, Ibaraki 305�?0856, Japan;Nagasaki Penguin Aquarium, Shukumachi, Nagasaki, Nagasaki 851�?0121, Japan;Nagasaki Prefecture Central Livestock Hygiene Service Center, Kaizumachi, Isahaya, Nagasaki 854�?0063, Japan

关键词: gene diagnosis;    immunohistochemistry;    penguin;    Rhizomucor pusillus;    sporangiospore;   

DOI  :  10.1292/jvms.14-0527

学科分类：兽医学

来源: Japanese Society of Veterinary Science

【 摘 要 】

References(15)Cited-By(1)This report presents a new case of mucormycosis encountered in penguin characterized by morphological variation of hyphae and presence of sporangia with numerous sporangiospores. A 4.5-year-old Magellanic penguin (Spheniscus magellanicus) died after exhibiting anorexia, poor nutritional condition and dyspnea. Multiple nodular lesions were observed in the thoracic and abdominal regions. Histopathologically, hyphae of various sizes were seen in the lungs, air sac and nodular lesions. Myriad sporangiospores and several sporangia were observed in/around the bronchi or parabronchi. The very narrow and short hyphae in the nodules were not consistent with the characteristics of Mucorales. However, for most hyphae, including those in the nodules, sporangiospores and sporangia, immunohistochemistry revealed Mucorales-positive reactions. In addition, these fungi were identified as Rhizomucor pusillus by gene analysis.

【 授权许可】

Unknown