Regional specializations of the tegument of the metacercaria of Timoniella imbutiforme

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-04-12 DOI:10.1017/s0022149x00700095

H.E.M. El-Darsh, P.J. Whitfield

引用次数: 0

Abstract

The ultrastructure of the spinous body tegument of the metacercaria of Timoniella imbutiforme (Molin, 1859) has recently been described. Other regions of the metacercarial tegument, including those of the oral sucker, pharynx, and nephridiopore, demonstrate considerable specializations. The oral sucker tegument had an aspinous outer syncytial layer that possessed a pimpled apical surface as well as enclosing two types of secretory bodies. The pharyngeal tegument likewise lacked spines, but possessed only one type of secretory body, and a smooth but folded outer surface. The nephridiopore tegument, however, showed the greatest degree of specialization possessing a single type of secretory body specific only to this region of the tegument. Also associated with the syncytium here was a prominent long filamentous glycocalyx, and microtubules which were observed for the first time in this region of the tegument.

查看原文本刊更多论文

imbutiforme 蒂莫尼氏菌甲壳的区域特化

最近，有人描述了 imbutiforme 蒂莫尼氏菌（Molin，1859 年）元蛔虫的刺身皮膜的超微结构。包括口吸盘、咽部和肾孔在内的其他部位的甲壳动物皮膜也表现出相当的特化。口吸盘的皮膜有一个阿斯匹林状的外合胞层，其顶端有一个凹凸不平的表面，并包裹着两种类型的分泌体。咽部黏膜同样没有刺，但只有一种分泌体，外表面光滑但有褶皱。然而，肾小管护膜的专业化程度最高，它只拥有一种分泌体，而且只有该区域的护膜才有。此外，这里的合胞体还伴有突出的长丝状糖萼和微管，这是首次在这一区域的护膜上观察到。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.