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Morphology and Small Subunit rDNA Phylogeny of a New Soil Ciliate, Bistichella variabilis n. sp. (Ciliophora, Stichotrichia)

文献类型：期刊论文

作者He, Yingying1,2; Xu, Kuidong1; Xu, KD (reprint author), Chinese Acad Sci, Inst Oceanol, Dept Marine Organism Taxon Phylogeny, 7 Nanhai Rd, Qingdao 266071, Peoples R China
刊名JOURNAL OF EUKARYOTIC MICROBIOLOGY
出版日期2011-07-01
卷号58期号:4页码:332-338
关键词Biodiversity New Species Orthoamphisiella 18s Rrna Gene Sequence Taxonomy Uroleptoides
ISSN号1066-5234
DOI10.1111/j.1550-7408.2011.00554.x
文献子类Article
英文摘要We isolated a new ciliate, Bistichella variabilis n. sp., from slightly saline soil of the Yellow River Delta in China and studied it using live observation, protargol staining, and small subunit (SSU) rRNA gene sequencing. Bistichella variabilis is elongated ellipsoidal and about 220 x 70 mm in vivo, with a variable number and arrangement of cirri-ventral row VI mostly very short, but a long row observed also in one specimen, and an extra row occasionally exists besides the left or the right marginal row. Bistichella variabilis differs from all congeners except Bistichella buitkampi (Foissner, 1982) in the macronuclear pattern (four vs. two or many nodules); and from B. buitkampi by the usual oblique arrangement of transverse cirri (vs. perpendicular); and the ventral row VI mostly restricted in the posterior quarter of the cell (vs. long and stretching to the anterior quarter). Phylogenetic analyses of SSU rDNA sequences indicated that B. variabilis grouped with the clade of Orthoamphisiella breviseries and Uroleptoides magnigranulosus with high support values. Despite their distinct differences in morphology, these three species have sequence similarities of 99.5-99.7%. Nonetheless, it is still premature to assign Bistichella together with Uroleptoides to the family Orthoamphisiellidae because of the taxonomic uncertainties and undersampling.; We isolated a new ciliate, Bistichella variabilis n. sp., from slightly saline soil of the Yellow River Delta in China and studied it using live observation, protargol staining, and small subunit (SSU) rRNA gene sequencing. Bistichella variabilis is elongated ellipsoidal and about 220 x 70 mm in vivo, with a variable number and arrangement of cirri-ventral row VI mostly very short, but a long row observed also in one specimen, and an extra row occasionally exists besides the left or the right marginal row. Bistichella variabilis differs from all congeners except Bistichella buitkampi (Foissner, 1982) in the macronuclear pattern (four vs. two or many nodules); and from B. buitkampi by the usual oblique arrangement of transverse cirri (vs. perpendicular); and the ventral row VI mostly restricted in the posterior quarter of the cell (vs. long and stretching to the anterior quarter). Phylogenetic analyses of SSU rDNA sequences indicated that B. variabilis grouped with the clade of Orthoamphisiella breviseries and Uroleptoides magnigranulosus with high support values. Despite their distinct differences in morphology, these three species have sequence similarities of 99.5-99.7%. Nonetheless, it is still premature to assign Bistichella together with Uroleptoides to the family Orthoamphisiellidae because of the taxonomic uncertainties and undersampling.
学科主题Microbiology
URL标识查看原文
语种英语
WOS记录号WOS:000292832200006
公开日期2012-07-03
源URL[http://ir.qdio.ac.cn/handle/337002/11400]  
专题海洋研究所_海洋生物分类与系统演化实验室
通讯作者Xu, KD (reprint author), Chinese Acad Sci, Inst Oceanol, Dept Marine Organism Taxon Phylogeny, 7 Nanhai Rd, Qingdao 266071, Peoples R China
作者单位1.Chinese Acad Sci, Inst Oceanol, Dept Marine Organism Taxon Phylogeny, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 He, Yingying,Xu, Kuidong,Xu, KD . Morphology and Small Subunit rDNA Phylogeny of a New Soil Ciliate, Bistichella variabilis n. sp. (Ciliophora, Stichotrichia)[J]. JOURNAL OF EUKARYOTIC MICROBIOLOGY,2011,58(4):332-338.
APA He, Yingying,Xu, Kuidong,&Xu, KD .(2011).Morphology and Small Subunit rDNA Phylogeny of a New Soil Ciliate, Bistichella variabilis n. sp. (Ciliophora, Stichotrichia).JOURNAL OF EUKARYOTIC MICROBIOLOGY,58(4),332-338.
MLA He, Yingying,et al."Morphology and Small Subunit rDNA Phylogeny of a New Soil Ciliate, Bistichella variabilis n. sp. (Ciliophora, Stichotrichia)".JOURNAL OF EUKARYOTIC MICROBIOLOGY 58.4(2011):332-338.

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来源：海洋研究所

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