Morphology and Morphogenesis of a Freshwater Ciliate, Epistylis chlorelligerum Shen, 1980 (Ciliophora, Peritrichia)
Morphology and Morphogenesis of a Freshwater Ciliate, Epistylis chlorelligerum Shen, 1980 (Ciliophora, Peritrichia)
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DOI：
10.1111/j.1550-7408.2010.00528.x
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发表时间：
2011-03
影响因子：
2.2
通讯作者：
Shu Wu;Xinlu Shi;L. R. Utz;Guijie Liu;D. Ji;Yuanjun Zhao;Hongliang Wang
中科院分区：
文献类型：
--
作者：
Shu Wu;Xinlu Shi;L. R. Utz;Guijie Liu;D. Ji;Yuanjun Zhao;Hongliang Wang
抽象的。从杭州中国的一条沟渠中采集到一种寡盐围生纤毛虫，名为Eistylis chloreligerum Shen.，1980。用活体标本和丙二醇浸渍标本研究了该物种的形态、口腔纤毛和形态发生。氯化棘球藻在体内的体积为16 0~2 30×5 0~6 0μm，内质绿色，内含共生藻类。口腔纤毛呈发达的丝状网状结构，与细胞孔的环状纤维相连；P3的外部两排通常延伸到P1上，通常将其包裹起来。在二次分裂过程中，一个子细胞继承了大部分旧的口腔器官和重组的单倍体和生发细胞(HK‘和G’)，而另一个子细胞的新口腔器官主要是从原始的生殖细胞(G)和单倍体(HK)发育而来：新的2，3(2P2，2P3)，新的单倍体(2Hk)和新的生殖细胞亲缘(2G)来自G，而新的1(2P1)及其口周延伸(2Pk)起源于HK。直到两套口器开始分离，才能观察到口腔膜。
ABSTRACT. An oligohalobic peritrichous ciliate, Epistylis chlorelligerum Shen, 1980, was collected from a ditch in Hangzhou, China. The morphology, oral infraciliature, and morphogenesis of the species were studied using living and protargol‐impregnated specimens. Zooids of E. chlorelligerum are 160–230 × 50–60 μm in vivo, and characterized by green‐colored endoplasm containing symbiotic algae. The oral infraciliature presents a well‐developed filamentous reticulum linked to the circular fiber of the cytostome; the outer two rows of P3 extend adstomally over P1 and usually enfold it. During binary fission, one daughter cell inherits most part of the old buccal apparatus and the reorganized haplokinety and germinal kinety (Hk′ and G′), and new buccal apparatus of the other daughter cell is mostly developed from the original germinal kinety (G) and haplokinety (Hk): new peniculi 2, 3 (2P2, 2P3), new haplokinety (2Hk), and new germinal kinety (2G) are formed from G, while the new peniculus 1 (2P1) and its peristomial extention (2Pk) originate from Hk. The epistomial membrane can be observed until the two sets of buccal apparatus begin to separate from each other.