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大學(xué)動(dòng)物學(xué)--原生動(dòng)物(存儲(chǔ)版)

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【正文】 Sexual Asexual 孢子生殖 配子生殖 接合生殖 Mitosis – Division of nucleus Cytokinesis – Division of cytoplasm Binary Fission 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?。ê跓岵。? ? 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。 ● 紅細(xì)胞外期 :在人體肝臟中進(jìn)行 臨床意義:瘧疾復(fù)發(fā)的根本原因 瘧原蟲 Plasmodium ? Malaria ( 瘧疾、瘴氣 ) ? Most important parasitic disease of humans today ? WHO estimates that 270 million new cases occur annually with 2 million annual deaths ? Transmitted by
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