First record of two urotsylid ciliates (Protozoa: Ciliophora: Spirotrichea) from Japan expanding the circumscription of species
First record of two urotsylid ciliates (Protozoa: Ciliophora: Spirotrichea) from Japan expanding the circumscription of species
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DOI：
10.1080/00222933.2023.2206586
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发表时间：
2023-03-15
影响因子：
0.8
通讯作者：
Hu，Xiaozhong
中科院分区：
文献类型：
--
作者：
Ghaffar，Abdul;Bai，Yang;Hu，Xiaozhong
两种尾柱纤毛虫，Trichototaxis marinaLu et al., 2014 和 Uncinata bradburyae(Gong et al., 2001) Luo et al., 2015，为日本新品种，从长崎沿海水域采集。两者都是根据活标本和普鲁戈染色标本进行鉴定的。从形态上看，T. 的两个新种群。码头在活体形态和纤毛方面与模式种群非常吻合，特别是具有长椭圆形的非常灵活的身体，以及由不规则形状的色素、多个左边缘行和海洋栖息地引起的微红色细胞颜色。该物种补充了一些形态特征。日本Uncinata Bradburya种群具有诊断特征，特别是在口部近端部分存在前吻部状突起和细长的膜、左边缘行前部的方向、高度发达的横向卷毛以及源自两个独特的、从头形成的原基的大量背侧运动。此外，该物种首次记录了绿色色素。新记录表明U.布拉德伯里犬可能是一种广温物种。分区事件的总体模式与之前描述的青岛人群的模式相似。重组的部分内容也首次为U透露。 Bradburyae，对应于opisthe的分裂过程。本研究证实了这两个物种的广泛分布，并有助于通过扩大一些形态测量数据的范围来限制物种。
Two urostylid ciliates,Trichototaxis marinaLu et al., 2014 andUncinata bradburyae(Gong et al., 2001) Luo et al., 2015, new to Japan, were collected from coastal water in Nagasaki. Both were identified based on live and protargol-stained specimens. Morphologically, two new populations ofT. marinacorrespond well with the type population in the live morphology and ciliature, especially a very flexible body having a long elliptical shape, and reddish cell colour caused by irregularly shaped pigments, multiple left marginal rows and marine habitat. A few morphological features were supplemented for the species. The Japanese population ofUncinata bradburyaepresents the diagnostic features, especially the presence of an anterior snout-like procession and the elongated membranelles in the proximal portion of adoral zone, orientation of the anterior portion of the left marginal row, highly developed transverse cirri, and high number of dorsal kineties derived from two unique, de novo formed anlagen. Additionally, greenish pigments were first documented for the species. The new record suggestsU. bradburyaemight be a eurythermal species. The overall pattern of the divisional events resembles that of the Qingdao population described previously. Part of the reorganisation was also first revealed forU. bradburyae, which corresponds to the divisional processes in the opisthe. The present study corroborates the wide distribution of both species, and contributes to circumscribe the species by expanding the range of some morphometric data.