Redescription of two little-known urostyloid ciliates, Anteholosticha randani (Groliere, 1975) Berger, 2003 and A. antecirrata Berger, 2006 (Ciliophora, Urostylida)
Redescription of two little-known urostyloid ciliates, Anteholosticha randani (Groliere, 1975) Berger, 2003 and A. antecirrata Berger, 2006 (Ciliophora, Urostylida)
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DOI：
10.1016/j.ejop.2016.01.001
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发表时间：
2016-04-01
影响因子：
2.9
通讯作者：
Warren, Alan
中科院分区：
文献类型：
--
作者：
Fan, Yangbo;Lu, Xiaoteng;Warren, Alan
本文报道了两种鲜为人知的尾茎纤毛虫--兰氏全孔纤毛虫（Anteholosticha randani（Groliire，1975）Berger，2003）和兰氏全孔纤毛虫（A. antecirrata Berger，2006，采自中国南方的淡水生境，通过活体观察和蛋白银染色，研究了其生物学特性。兰氏前孔绦虫的特征是口前区二分，膜短，纵向排列呈波状。还报道了一个重组/形态发生的早期阶段，一个重组的早期-中期阶段和一个形态发生的中期阶段。Anteholostichaantecirata的特征是其在体内的体积大（200-400 × 40-80 μ m），一排颊纤毛和明显的黄绿色皮质颗粒。基于SSU rDNA序列的系统发育分析表明，A. antecirrata可能与大尾柱虫（Urostylagrandis）和颗粒巴库螺（Bakuellagranulifera）有最近的共同祖先，而A. randani分支独立，是姐妹一个大的林间空地，包括Pseudourostyla，Pseudokeronopsis，Caudiholosticha和几个物种的Anteholosticha。(C)2016 Elsevier GmbH. All rights reserved.
The morphology of two little-known urostyloid ciliates, Anteholosticha randani (Groliire, 1975) Berger, 2003 and A. antecirrata Berger, 2006, collected from freshwater biotopes in southern China, was studied based on live observations and protargol staining. Anteholosticha randani is characterized by its bipartite adoral zone and short, longitudinally aligned undulating membranes. One early stage of reorganization/morphogenesis, one early-middle stage of reorganization and one middle stage of morphogenesis are also reported. Anteholosticha antecirrata is characterized by its large body size in vivo (200-400 x 40-80 mu m), a row of buccal cirri and conspicuous, yellow-green cortical granules. Phylogenetic analyses based on SSU rDNA sequence data reveal that A. antecirrata may share a most recent common ancestor with Urostyla grandis and Bakuella granulifera, whereas A. randani branches independently and is sister to a large Glade that includes Pseudourostyla, Pseudokeronopsis, Caudiholosticha and several species of Anteholosticha. (C) 2016 Elsevier GmbH. All rights reserved.