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Molecular phylogeny and taxonomy of four Remanella species(Protozoa, Ciliophora): A flagship genus of karyorelictean ciliates, with descriptions of two new species

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Zoological Research 2022年第5期43卷 827-842页

作者： Ming-Zhen Ma Yu-Jie Liu Yuan Xu Bo-Rong Lu Yu-Qing Li Saleh AAL-Farraj Giulio Petroni Wei-Bo Song Ying Yan Institute of Evolution&Marine Biodiversity Ocean University of ChinaQingdaoShandong 266003China State Key Laboratory of Estuarine and Coastal Research East China Normal UniversityShanghai 200241China Zoology Department College of ScienceKing Saud UniversityRiyadh 11451Saudi Arabia Department of Biological University of PisaPisa 56100Italy Laboratory for Marine Biology and Biotechnology Qingdao National Laboratory for Marine Science and TechnologyQingdaoShandong 266237China

During faunal studies of psammophilic ciliates along the coast of Qingdao, China, several marine karyorelictean species were isolated. Among them,four species within the genus Remanella were investigated, including two species new to science:i.e., R. rugosa, Remanella elongata sp. nov.,Remanella aposinica sp. nov.,and ***. Remanella rugosa has been reported several times, but this study is the first to provide detailed morphological characters and phylogenetics. Remanella elongata sp. nov. can be distinguished from its congeners by the presence of complex cortical granules, fewer macronuclei, and longer body size. Remanella aposinica sp. *** from its congeners by having 14–17 right lateral ciliary rows and 24–37 dikinetids of intrabuccal kinety. Poorly known Remanella rugosa var. unicorpusculata(Kahl, 1933) Foissner, 1996should be elevated from subspecies to species level,Remanella unicorpusculata(Foissner, 1996) ***., based on detailed redescriptions with statistical data, living morphology, infraciliature, and species definitions. Small subunit(SSU) rDNA was sequenced for the four species, and phylogenetic analysis revealed that all known taxa in Remanella formed the outline branch to the genus Loxodes with moderate to high bootstrap support among Remanella lineages.

关键词： Marineciliates Morphology infraciliature Phylogeny

Taxonomy, Morphology and Phylogeny of a New Oligotrich Ciliate-Omegastrombidium hongkongense n. sp.(Protozoa: Ciliophora) from Clear Water Bay, Hong Kong

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Journal of Ocean University of China 2018年第4期17卷 890-896页

作者： SHEN Zhuo LIU Weiwei ZHANG Shuwen YI Zhenzhen LIU Hongbin Microbial Ecology and Matter Cycle Group School of Marine Sciences Sun Yat-sen University Coastal Marine Laboratory The Hong Kong University of Science and Technology Key Laboratory of Tropical Marine Bio-Resources and Ecology South China Sea Institute of Oceanology Chinese Academy of Science Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring School of Life Science South China Normal University

One new marine oligotrich ciliate, Omegastrombidium hongkongense n. sp., was isolated from a bloom of Noctiluca scuntillans near Port Shelter, Hong Kong. The morphology and infraciliature of this new species were studied on both living and protargol-stained specimens. Its phylogenetic position was discussed based on the sequence of the small subunit r RNA gene. O. hongkongense is different from its congeners with special characters. The cells are usually heart-shaped, and the cell size usually is(20–35) ×(20–30) μm in vivo. Its deep buccal cavity extends obliquely to about 1/2 of cell length. It shows prominent apical protrusion. The adoral zone of membranelles is divided into 17–19 collar membranelles and four buccal membranelles. It has one ball-like macronucleus. The girdle kinety forms a closed loop which obliquely surrounds the body. The ventral kinety and thigmotactic membranelles are not observed. The SSU r RNA sequence of O. hongkongense was close to those of Strombidium paracalkinsi and Varistrombidium kelum with approximately 99% similarity. In the phylogenetic trees, O. hongkongense can be grouped with O. elegans and V. kielum species with very low support(16% ML).

关键词： infraciliature marine ciliate morphology Oligotrichia Noctiluca scuntillans

Taxonomic description of a new marine ciliate,Euplotes qingdaoensis n. sp.(Ciliophora:Euplotida)

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Chinese Journal of Oceanology and Limnology 2014年第2期32卷 426-432页

作者：陈相瑞马洪钢 Khaled A.S.AL-RASHEID School of Marine Science Ningbo University Laboratory of Protozoology Institute of Evolution & Marine BiodiversityOcean University of China Zoology Department College of ScienceKing Saud University

The characteristics and infraciliature of a new euplotid ciliate, Euplotes qingdaoensis n. sp., discovered from the coastal waters of Jiaozhou Bay, northern China, were studied using live observation and silver impregnation. The new marine species is characterized by a slightly flattened body （90-110 um×70- 80 um, in vivo）, an adoral zone of 26-29 membranelles, 10 strong frontoventral and five transverse cirri, two caudal cirri, a single left marginal cirrus, seven dorsal kineties, a middle kinety with about 15 pairs of basal bodies, a silverline system of the double-eurystomus type, and a C-shaped macronucleus.

关键词： Euplotes infraciliature morphology new species taxonomy

A new hypotrich ciliate,Oxytricha xianica ***.,with notes on the morphology and phylogeny of a Chinese population of Oxytricha auripunctata Blatterer&Foissner,1988(Ciliophora,Oxytrichidae)

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Marine Life Science & Technology 2021年第3期3卷 303-312页

作者： Jingyi Wang Tengteng Zhang Fengchao Li Alan Warren Yanbo Li Chen Shao Laboratory of Protozoological Biodiversity and Evolution in Wetland College of Life SciencesShaanxi Normal UniversityXi’an710119China Insititute of Evolution and Marine Biodiversity Ocean University of ChinaQingdao266003China College of Life Science Institute of Life Science and Green DevelopmentHebei UniversityBaoding071002China Department of Life Sciences Natural History MuseumLondonSW75BDUK Handan Foreign Language School of Hebei Province Handan056002China

The morphology and infraciliature of the new hypotrichous ciliate,Oxytricha xianica ***.,and a Chinese population of Oxytricha auripunctata Blatterer&Foissner,1988,are investigated using live observation and protargol *** xianica *** defined by the body size 85-130µm×30-50µm in vivo,the typical oxytrichid 18 frontoventral-transverse cirri,cortical granules absent,undulating membranes reduced or absent,three caudal cirri,dorsal kineties in Oxytricha pattern,and two ellipsoidal macronuclear *** Chinese population of *** differs slightly from other populations in the arrangement and color of cortical granules and position of anterior end of dorsal kinety *** analyses based on SSU-rDNA sequences support the assertion that *** belongs to Oxytricha and Oxytrichidae.

关键词： infraciliature Molecular Novel species Oxytrichid Taxonomy

First Record and Redefinition of the Qingdao Population of Marine Ciliate Cardiostomatella vermiformis (Kahl, 1928) Corliss, 1960 (Protozoa, Ciliophora)

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Journal of Ocean University of China 2007年第4期6卷 387-392页

作者： WANG Yangang HU Xiaozhong LONG Hongan SONG Weibo Laboratory of Protozoology Ocean University of China Qingdao 266003 P. R. China

The living morphology and infraciliature of a marine ciliate, Cardiostomatella vermiformis isolated from a sand beach of the Jiaozhou Bay near Qingdao, China, were investigated by live observation, protargol and silver carbonate impregnation methods. Both the morphological and morphometric data largely agree with former records. Based on the data obtained, an improved diagnosis for Cardiostomatella vermiformis is supplied: Large marine Cardiostomatella with cylindrical body shape and several prolonged caudal cilia; cells in vivo about (90–500) μm×(30–120) μm; macronucleus beaded; single contractile vacuole caudally positioned; buccal apparatus conspicuously small, genus typical; three to six postoral kineties; 96-130 somatic kineties. This species is recorded for the first time in China.

关键词： morphology infraciliature Cardiostomatella vermiformis