Morphology,Morphogenesis, and Molecular Phylogeny of a New Soil Ciliate,Sterkiella multicirrata sp. nov. (Ciliophora,Hypotrichia) from China |
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| Authors: | Fengchao Li Yanbo Li Dan Luo Miao Miao Chen Shao |
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| Affiliation: | 1. The Key Laboratory of Zoological Systematics and Application, College of Life Sciences, Hebei University, Baoding, China;2. Handan Foreign Language School of Hebei Province, Handan, China;3. Savaid Medical School, University of Chinese Academy of Sciences, Beijing, China;4. The Key Laboratory of Biomedical Information Engineering, Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China |
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| Abstract: | The morphology and morphogenesis of a new soil hypotrich ciliate, Sterkiella multicirrata sp. nov., was investigated using live observation and protargol staining. The new species is characterised by: body elliptical, 110–180 × 45–75 μm in vivo, an average of 35 adoral membranelles; usually 19 frontoventral‐transverse cirri, consisting of three frontal, five frontoventral, one buccal, four postoral ventral, two pretransverse, and four transverse cirri; four macronuclear nodules, and 2–5 micronuclei. S. multicirrata sp. nov. differs from its congeners mainly in the number of frontoventral‐transverse cirri and macronuclear nodules. Morphogenesis of the new species is similar to its congeners; the primary difference exists in the segmentation of the frontoventral‐transverse cirral anlagen, which is usually generated in a 1:2:3:3:5:5 pattern. Based on the small subunit ribosomal DNA sequence, the phylogenetic position of the new species is discussed. |
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| Keywords: | Morphogenesis phylogeny soil ciliate Sterkiella multicirrata sp. nov stylonychine oxytrichids |
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