First report of Epistylis unioi Gong 1986 (Sessilida: Epistylididae) infecting fry of Pelteobagrus fulvidraco in Hubei, China

文献类型： 外文期刊

第一作者： Ge, Xianping

作者： Ge, Xianping;Li, Ming;Li, Weidong;Huang, Feng;Liu, Huiyu;Wang, Chong;Wang, Chong;Zhang, Lin

作者机构：

关键词： Epistylis unioi;peritrich;infraciliature;skin lesions

期刊名称：ZOOTAXA （ 影响因子：1.091； 五年影响因子：1.097 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： The peritrich Epistylis unioi Gong, 1986 was collected from fry of Pelteobagrus fulvidraco during parasite surveys at Hon-ghu Lake Fish Hatchery, Hubei Province, central China in May 2010 and redescribed. Some revisions were done based on live, silver-impregnated, and SEM specimens. The zooid is elongated and somewhat vase-like in shape, measuring 56-88 x 22-38 um in vivo. A single contractile vacuole is apically located slightly below the peristome disc. The macro-nucleus is horseshoe-shaped, alwaystransversely situated at the foreside of the body. Haplokinety (H) and polykinety (Po) complete one and one-half circuits on the peristome before entering the infundibulum, with a distal kinetal fragment present at the distal end. Silverline system consists of 37-45 pellicular striations between peristome and aboral trochal band (TB), and of 26-33 between TB and scopula. Colony is asymmetrically and dichotomously branched, usually with only two levels of branches. In addition, the telotrochs of E. unioi were also observed and its structures were described herein. Besides, obvious skin lesions caused by the ringlike base of E. unioi were detected and the relationship between these epizooites and their hosts was briefly discussed as well.

分类号： Q959

  • 相关文献
作者其他论文 更多>>

微信小程序