Establishment of a new hypotrichous genus, Heterotachysoma n. gen. and notes on the morphogenesis of Hemigastrostyla enigmatica (Ciliophora, Hypotrichia)

被引：25

作者：

Shao, Chen ^{[1
]}

Ding, Yan ^{[1
]}

Al-Rasheid, Khaled A. ^{[2
]}

Al-Farraj, Saleh A. ^{[2
]}

Warren, Alan ^{[3
]}

Song, Weibo ^{[4
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Life Sci & Technol, Key Lab Biomed Informat Engn, Minist Educ, Xian 710049, Peoples R China

[2] King Saud Univ, Dept Zool, Riyadh 11451, Saudi Arabia

[3] Nat Hist Museum, Dept Zool, London SW7 5BD, England

[4] Ocean Univ China, Inst Evolut & Marine Biodivers, Lab Protozool, Qingdao 266003, Peoples R China

来源：

EUROPEAN JOURNAL OF PROTISTOLOGY | 2013年 / 49卷 / 01期

关键词：

Ciliophora; Hemigastrostyla; Heterotachysoma; Hypotrichia; Morphogenesis; New Genus; TRACHELOSTYLA-PEDICULIFORMIS COHN; MARINE CILIATE; 1866; BORROR; CHINA SEA; SP-NOV; MORPHOLOGY; PROTOZOA; STICHOTRICHIA; GONOSTOMUM; COMB;

D O I：

10.1016/j.ejop.2012.04.002

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

A marine hypotrich ciliate, Heterotachysoma multinucleatum (Gong and Choi, 2007) n. comb., found in coastal waters near Qingdao, China, was investigated. Heterotachysoma multinucleatum is characterized by its dorsal ciliature arranged in Gonostomum-pattern. Additionally, a new genus, Heterotachysoma n. gen., is established which is mainly characterized by: 18-cirri pattern; flexible body; three dorsal kinetics with no dorsomarginal kineties nor kinety fragmentation; one right and one left row of marginal cirri; caudal cirri absent. The genus Tachysoma is redefined, and three new combinations, T multinucleatum, T ovatum and T dragescoi, are proposed. The morphogenesis of Hemigastrostyla enigmatica (Dragesco and Dragesco-Kerneis, 1986) Song and Wilbert, 1997, is also described. Compared with that of its congeners, the differences are mainly in the dorsal ciliature: (1) the dorsal kinety anlagen are formed de novo in H. enigmatica (vs. intrakinetally in H. paraenigmatica and H. elongata); (2) the dorsal kineties anlagen develop in secondary mode in H. enigmatica (vs. primary mode in H. paraenigmatica); (3) the kinetal fragment anterior to the right marginal row in both filial product is absent in both H. enigmatica and H. elongata (vs. present in H. paraenigmatica). These findings suggest that morphogenesis is not uniform among members of the genus Hemigastrostyla. (C) 2012 Elsevier GmbH. All rights reserved.

引用

页码：93 / 105

页数：13

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