大學(xué)動物學(xué)--原生動物-文庫吧
2025-08-01 01:43 本頁面
【正文】 縱二分裂 橫二分裂 Sporogongy ? Like multiple fission (schizogony) except occurs after union of gametes v 包囊形成 Encystment and Excystment ? Cyst forms to survive harsh environment – Dormant stage – Resistant covering – Shuts down metablolism ? Up to 49 years! – Parasite leaves host ? Leishmania ? 12 million people ?利什曼原蟲病（黑熱?。? ? Leishmaniasis 寄生于內(nèi)臟的（杜氏）利什曼原蟲 Visceral Leishmaniasis ? Primarily occurs in Africa and Asia. ? Characterized by irregular fever, weight loss, swelling of spleen amp。 liver, amp。 anemia. ? Fatality can be 90% if untreated. ? 白蛉子傳播 寄生于皮膚的利什曼原蟲 Cutaneous Leishmaniasis ? Parasites form skin ulcers. As many as 200 lesions may form causing disability and social stigma 寄生于皮膚粘膜的利什曼原蟲 Mucocutaneous Leishmaniasis ? Central amp。 South America ? Destroys mucous membranes of nose amp。 mouth 昏睡病 African Sleeping Sickness ? Parasite Trypan
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