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Morphology and infraciliature of two new marine ciliates, Paracyrtophoron tropicum nov gen., nov spec. and Aegyria rostellum nov spec. (Ciliophora, Cyrtophorida), isolated from tropical waters in southern China
作者: Chen, Xiangrui1,2; Hu, Xiaozhong2; Jun Gong(龚骏)3; Al-Rasheid, Khaled A. S.4; Al-Farraj, Saleh A.4; Song, Weibo2
刊名: EUROPEAN JOURNAL OF PROTISTOLOGY
ISSN号: 0932-4739
出版日期: 2012
卷号: 48, 期号:1, 页码:63-72
关键词: Aegyria ; Marine ciliates ; Morphology ; New species ; Paracyrtophoron
学科分类: Microbiology
产权排序: [Chen, Xiangrui; Hu, Xiaozhong; Song, Weibo] Ocean Univ China, Lab Protozool, Inst Evolut & Marine Biodivers, Qingdao 266003, Peoples R China; [Chen, Xiangrui] Ningbo Univ, Coll Life Sci & Biotechnol, Ningbo 315211, Zhejiang, Peoples R China; [Gong, Jun] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Al-Rasheid, Khaled A. S.; Al-Farraj, Saleh A.] King Saud Univ, Dept Zool, Riyadh 11451, Saudi Arabia
通讯作者: Hu, XZ (reprint author), Ocean Univ China, Lab Protozool, Inst Evolut & Marine Biodivers, Qingdao 266003, Peoples R China. xiaozhonghu@ouc.edu.cn
作者部门: 生物资源实验室 
中文摘要: The morphology and infraciliature of two new marine cyrtophorid ciliates, Paracyrtophoron tropicum nov. gen., nov. spec. and Aegyria rostellum nov. spec., isolated from tropical waters in southern China, were investigated using live observation and protargol impregnation methods. Paracyrtophoron nov. gen. differs from the closely related Cyrtophoron by lack of fragment kinety at anterior ends of right somatic kinetics and thigmotactic cilia in posterior portion of ventral surface, while from the well-defined Chlamydodon by lack of the cross-striped band around the periphery of the somatic field. Paracyrtophoron tropicum nov. spec., the type of the new genus, can be recognized by the combination of the following characters: cell size about 150-175 x 70-90 mu m in vivo; elliptical to kidney-shaped in outline, dorsoventrally flattened about 2.5:1; conspicuous cortical granules; one canal-like depression extending from postoral area to subcaudal region of cell; ca. 90 somatic kinetics; 12-16 nematodesmal rods; one or two terminal fragments on dorsal side. Aegyria rostellum is characterized by the following features: size about 90-150 x 40-70 mu m in vivo, triangular or ear-shaped body with broad anterior end, having a rostriform structure and pigment spots, 56-63 somatic kinetics, one preoral kinety, three or four circumoral kinetics, and 32-42 nematodesmal rods. Based on previous and current studies, the definition for the genus Aegyria is updated: body dorsoventrally flattened; oral ciliature consisting of one preoral and several circumoral kinetics; podite located in posterior ventral region and surrounded by somatic kinetics; no obvious gap between right and left somatic kinetics; postoral and left somatic kinetics progressively shortened posteriorly from right to left. Additionally, two new combinations were proposed.
英文摘要: The morphology and infraciliature of two new marine cyrtophorid ciliates, Paracyrtophoron tropicum nov. gen., nov. spec. and Aegyria rostellum nov. spec., isolated from tropical waters in southern China, were investigated using live observation and protargol impregnation methods. Paracyrtophoron nov. gen. differs from the closely related Cyrtophoron by lack of fragment kinety at anterior ends of right somatic kinetics and thigmotactic cilia in posterior portion of ventral surface, while from the well-defined Chlamydodon by lack of the cross-striped band around the periphery of the somatic field. Paracyrtophoron tropicum nov. spec., the type of the new genus, can be recognized by the combination of the following characters: cell size about 150-175 x 70-90 mu m in vivo; elliptical to kidney-shaped in outline, dorsoventrally flattened about 2.5:1; conspicuous cortical granules; one canal-like depression extending from postoral area to subcaudal region of cell; ca. 90 somatic kinetics; 12-16 nematodesmal rods; one or two terminal fragments on dorsal side. Aegyria rostellum is characterized by the following features: size about 90-150 x 40-70 mu m in vivo, triangular or ear-shaped body with broad anterior end, having a rostriform structure and pigment spots, 56-63 somatic kinetics, one preoral kinety, three or four circumoral kinetics, and 32-42 nematodesmal rods. Based on previous and current studies, the definition for the genus Aegyria is updated: body dorsoventrally flattened; oral ciliature consisting of one preoral and several circumoral kinetics; podite located in posterior ventral region and surrounded by somatic kinetics; no obvious gap between right and left somatic kinetics; postoral and left somatic kinetics progressively shortened posteriorly from right to left. Additionally, two new combinations were proposed. (C) 2011 Elsevier GmbH. All rights reserved.
研究领域[WOS]: Microbiology
关键词[WOS]: SSU RIBOSOMAL-RNA ; CORTICAL PATTERN ; DYSTERIA-PROCERA ; PROTOZOA ; REDESCRIPTIONS ; EHRENBERG ; QINGDAO ; KAHL ; DIVERSIFICATION ; PHYLLOPHARYNGEA
文章类型: Article
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000302561400006
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.yic.ac.cn/handle/133337/5568
Appears in Collections:海岸带生物学与生物资源利用所重点实验室_期刊论文

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作者单位: 1.Ningbo Univ, Coll Life Sci & Biotechnol, Ningbo 315211, Zhejiang, Peoples R China
2.Ocean Univ China, Lab Protozool, Inst Evolut & Marine Biodivers, Qingdao 266003, Peoples R China
3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
4.King Saud Univ, Dept Zool, Riyadh 11451, Saudi Arabia

Recommended Citation:
Chen, Xiangrui,Hu, Xiaozhong,Gong, Jun,et al. Morphology and infraciliature of two new marine ciliates, Paracyrtophoron tropicum nov gen., nov spec. and Aegyria rostellum nov spec. (Ciliophora, Cyrtophorida), isolated from tropical waters in southern China[J]. EUROPEAN JOURNAL OF PROTISTOLOGY,2012,48(1):63-72.
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