首页> 美国卫生研究院文献>Parasite >Ultrastructure of mature spermatozoa of three Bucephalidae (Prosorhynchus longisaccatus Rhipidocotyle khalili and Bucephalus margaritae) and phylogenetic implications
【2h】

Ultrastructure of mature spermatozoa of three Bucephalidae (Prosorhynchus longisaccatus Rhipidocotyle khalili and Bucephalus margaritae) and phylogenetic implications

机译:三种Bu科(Prosorhynchus longisaccatusRhipidocotyle khalili和Bucephalus margaritae)成熟精子的超微结构及其系统发育意义

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

We describe here the mature spermatozoa of three species of bucephalids, namely Bucephalus margaritae, Rhipidocotyle khalili and Prosorhynchus longisaccatus. This study provides the first ultrastructural data on the genera Bucephalus and Rhipidocotyle and enabled us to confirm the model of the mature spermatozoon in the Bucephalinae. The spermatozoon exhibits two axonemes with the 9 + “1” pattern of the Trepaxonemata, one of which is very short, lateral expansion, external ornamentation of the plasma membrane located in the anterior extremity of the spermatozoon and associated with cortical microtubules, spine-like bodies, a mitochondrion, and a nucleus. The maximum number of cortical microtubules is located in the anterior part of the spermatozoon. However, more studies are needed to elucidate if spine-like bodies are present in all the Bucephalinae or not. In the Prosorhynchinae, the mature spermatozoon exhibits a similar ultrastructural pattern. Some differences are observed, particularly the axoneme lengths and the arrangement of the spine-like bodies. The posterior extremity of the spermatozoon in the Bucephalinae exhibits only the nucleus, but prosorhynchines have microtubules.
机译:我们在这里描述三种头状畸形虫的成熟精子,即玛氏头畸形虫,Rhalidocotyle khalili和Prosorhynchus longisaccatus。这项研究提供了有关Bucephalus和Rhipidocotyle属的第一批超微结构数据,使我们能够确定Bucephalinae中成熟的精子的模型。精子表现出两个轴突,其轴突为9+“ 1”型,其中之一非常短,侧向扩张,位于精子前肢的质膜外部装饰,并与皮质微管(脊柱状)相关身体,线粒体和细胞核。皮层微管的最大数量位于精子的前部。然而,需要进行更多的研究来阐明是否在所有的小头虫中都存在脊柱状体。在Prosorhynchinae中,成熟的精子表现出相似的超微结构模式。观察到一些差异,特别是轴突长度和脊柱状体的排列。 Bucephalinae中精子的后肢仅显示核,但是前扁豆具有微管。

著录项

相似文献

  • 外文文献
  • 中文文献
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号