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
Chen, Xiangrui1,2; Hu, Xiaozhong2; Gong, Jun3; Al-Rasheid, Khaled A. S.4; Al-Farraj, Saleh A.4; Song, Weibo2
2012
发表期刊EUROPEAN JOURNAL OF PROTISTOLOGY
ISSN0932-4739
卷号48期号:1页码:63-72
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
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.; 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.
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
关键词Aegyria Marine Ciliates Morphology New Species Paracyrtophoron
作者部门生物资源实验室 
学科领域Microbiology
项目资助者Natural Science Foundation of China[41006086, 40976075]; Center of Biodiversity Research, King Saud University, Saudi Arabia; Ningbo Natural Science Foundation[2011A610014]; Zhejiang Provincial Education Department[Y201017789]; Ningbo University[xkc11006]; Key Laboratory of Mariculture of Ministry of Education, Ocean University of China[2009002]
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收录类别SCI
关键词[WOS]SSU RIBOSOMAL-RNA ; CORTICAL PATTERN ; DYSTERIA-PROCERA ; PROTOZOA ; REDESCRIPTIONS ; EHRENBERG ; QINGDAO ; KAHL ; DIVERSIFICATION ; PHYLLOPHARYNGEA
文章类型Article
语种英语
WOS研究方向Microbiology
WOS记录号WOS:000302561400006
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被引频次:17[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/5568
专题海岸带生物学与生物资源利用所重点实验室
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
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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.
APA Chen, Xiangrui,Hu, Xiaozhong,Gong, Jun,Al-Rasheid, Khaled A. S.,Al-Farraj, Saleh A.,&Song, Weibo.(2012).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.EUROPEAN JOURNAL OF PROTISTOLOGY,48(1),63-72.
MLA Chen, Xiangrui,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".EUROPEAN JOURNAL OF PROTISTOLOGY 48.1(2012):63-72.
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