Chen Xumiao, Li Lifang, Al-Farraj Saleh A, Ma Honggang, Pan Hongbo
Department of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory of Protozoology, Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao 266003, China.
Marine College, Shandong University, Weihai 264209, China.
Eur J Protistol. 2018 Feb;62:122-134. doi: 10.1016/j.ejop.2017.12.005. Epub 2017 Dec 28.
The morphology, including the ciliary pattern, of two cyrtophorid ciliates, namely Aegyria apoliva sp. nov. and Trithigmostoma cucullulus (Müller, 1786) Jankowski, 1967, were investigated. They were isolated from coastal water off Qingdao and from an estuarine habitat in south China, respectively. Aegyria apoliva sp. nov. is characterized as following: body size 100-120 × 50-70 μm in vivo with dark pigment spot on anterior left part of cell; 48-69 somatic kineties; one preoral and four or five circumoral kineties; 9-13 transpodial segments; 26-40 nematodesmal rods; 6-10 contractile vacuoles. The Guangzhou population of Trithigmostoma cucullulus corresponds well with previously described populations, therefore only a brief morphological description is presented. Phylogenetic analysis based on small-subunit rRNA gene sequences data supports the establishment of the new species as well as the monophyly of both genera.
对两种弯口类纤毛虫，即新种阿波利瓦埃及纤毛虫（Aegyria apoliva sp. nov.）和库氏三唇口虫（Trithigmostoma cucullulus (Müller, 1786) Jankowski, 1967）的形态，包括纤毛模式进行了研究。它们分别从青岛附近的沿海水域和中国南方的河口生境中分离得到。新种阿波利瓦埃及纤毛虫的特征如下：活体时体长100 - 120×50 - 70μm，细胞左前部有深色色素斑；48 - 69条体动基列；1条口前动基列和4或5条围口动基列；9 - 13个柄节；26 - 40根刺丝杆；6 - 10个伸缩泡。库氏三唇口虫的广州种群与先前描述的种群非常吻合，因此仅给出简要的形态描述。基于小亚基rRNA基因序列数据的系统发育分析支持新物种的建立以及两个属的单系性。
