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首页> 外文期刊>The Korean Journal of Systematic Zoology >Taxonomic Study of Poorly-known Marine Pleurostomatid Ciliates of Litonotus paracygnus and L. pictus (Ciliophora: Pleurostomatida) from Korea
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Taxonomic Study of Poorly-known Marine Pleurostomatid Ciliates of Litonotus paracygnus and L. pictus (Ciliophora: Pleurostomatida) from Korea

机译：来自韩国的鲜为人知的Litonotus paracygnus和L. pictus（Ciliophora：Pleurostomatida）的海洋胸膜气生纤毛虫的分类学研究。

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摘要

Two poorly known and often confused pleurostomatid ciliates, Litonotus paracygnus Song, 1994 and L. pictus Gruber, 1884, were collected from the coastal waters of Yeonggeumjeong and Bongpo-port, Gangwon-do in the East Sea and from the Iwon tide embankment near Ganwol-do, Chungcheongnam-do in the Yellow Sea, Korea. These species were described based on live observations, the protargol-impregnation and morphometrics of the species. Also provided are their diagnoses. The small subunit ribosomal DNA (SSU rDNA) sequences of these species were comp[are with previously known sequences of related species. The diagnostics of the two Litonotus species are as follows. L. paracygnus: 150-300 mu m long in vivo, strongly contractile neck region, two ellipsoid macronuclie (Ma) and one micronucleus (Mi). 7 left (LSK) and 11-14 right somatic kinetics (RSK), 2-4 contractile vacuoles (CV) located on the posterior end, extrusemes (Ex) distributed on the anterior region of the ventral margin only. L. pictus: about 200-600 mu m long in vivo, extremely contractile, beautiful body color with rows of yellow-brownish cortical pigment granules, 12-21 Ma arranged in moniliform pattern, infrequently vermiform, 7-11 LSK and 18-26 RSK, several CV located on both margins. Ex distributed on the anterior region of the ventral margin only. In this study, this genus we firstly recorded in Korea.
机译：从东海江原道的英金亭和本浦港以及甘月附近的岩原潮汐堤防中收集了两个鲜为人知且经常混淆的胸膜肺纤毛虫，1994年的Litonotus paracygnus Song和1884年的L. pictus Gruber。韩国黄海忠清南道这些物种是根据现场观察，对它们的异丙醇浸渍和形态学描述的。还提供了他们的诊断。这些物种的小亚基核糖体DNA（SSU rDNA）序列与相关物种的先前已知序列相符。两种Litonotus物种的诊断如下。副乳杆菌：体内长150-300μm，强烈收缩的颈部区域，两个椭圆形大核（Ma）和一个微核（Mi）。左侧有7个（LSK），右侧有11-14个体细胞动力学（RSK），位于后端的2-4个收缩液泡（CV），仅在腹缘的前部分布有挤出物（Ex）。 Pictus：体内长约200-600微米，极易收缩，美丽的体色，带有成排的黄棕色皮质颜料颗粒，呈单丝状排列的12-21 Ma，很少呈蠕虫状，7-11 LSK和18-26 RSK，位于两个边缘的多个简历。 Ex仅分布在腹缘的前部区域。在这项研究中，我们首次在韩国记录了该属。

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