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Ultrastructural studies of the tegument and excretory system of the cestode Nematotaenia kashmirensis (Fotedar, 1966) infecting the toad Bufo regularis in Egypt.

Article

Last updated: 01 Jan 2025

Subjects

-

Tags

Fisheries

Abstract

The fine structure of the tegument of N. kashmirensis (Nematotaeniidae: Cyclophyllidea) mature proglottids consists of distal cytoplasm connected with underlying perikarya by cytoplasmic bridges. The distal cytoplasm lies on
the basal lamina below which there are two layers of smooth muscles, circular and longitudinal bundles. The distal cytoplasm contains mitochodria, electron dense bodies and vesicles of variable size, shape and density. The tegument bears three types of microtriches, namely: filiform, spiniform and digitiform. They have multiple functions, such as amplification of the surface area for digestion and absorption, excretion, movement, attachment to the intestinal mucosa of their hosts and external protection. Type and distribution of microtriches are considered to be of systematic
and phylogenetic importance. The fine structure of the excretory system consists of numerous flame cells
each bears a bunch of 54 cilia, which are anchored in the cytoplasm by means of basal bodies possessing striated rootlets. All cilia in the flame cell are aligned in the same direction. The flame and duct cells are connected by interdigitating ribs of cytoplasm separated by a fibrous sheet. Both internal and external leptotriches
are also present. The apical surface of the cytoplasm lining the duct is convoluted and its surface area is further amplified by microvilli.

DOI

10.21608/ejabf.2009.2042

Keywords

Toad, Bufo regularis, tegument, excretory system, Nematotaenia, kashmirensis

Authors

First Name

Amira

Last Name

El Kabbany

MiddleName

-

Affiliation

Department of Zoology, Faculty of Sci., Zagazig Univ., Zagazig, Egypt.

Email

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City

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Orcid

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Volume

13

Article Issue

4

Related Issue

425

Issue Date

2009-04-01

Receive Date

2017-04-03

Publish Date

2009-04-01

Page Start

17

Page End

34

Print ISSN

1110-6131

Online ISSN

2536-9814

Link

https://ejabf.journals.ekb.eg/article_2042.html

Detail API

https://ejabf.journals.ekb.eg/service?article_code=2042

Order

2

Type

Original Article

Type Code

103

Publication Type

Journal

Publication Title

Egyptian Journal of Aquatic Biology and Fisheries

Publication Link

https://ejabf.journals.ekb.eg/

MainTitle

Ultrastructural studies of the tegument and excretory system of the cestode Nematotaenia kashmirensis (Fotedar, 1966) infecting the toad Bufo regularis in Egypt.

Details

Type

Article

Created At

22 Jan 2023