Ichthyphthirius multifilis infection induces apoptosis in different species of tilapia
Joint Authors
S. al-Din, Abd al-Hakim
Abd al-Jabir, Ruwaydah A.
Source
Journal of the Egyptian Society of Parasitology
Issue
Vol. 39, Issue 2 (31 Aug. 2009), pp.665-678, 14 p.
Publisher
The Egyptian Society of Parasitology
Publication Date
2009-08-31
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Topics
Abstract EN
The parasitic ciliate Ichthyophthirius multifiliis (Ich) is one of the most im¬portant protozoan pathogens of freshwater fish worldwide.
Examination of 4 species of Tilapia from the River Nile recorded highest rate infection in Oreochromis niloticus, followed by Oreochromis aureus, Sarotherodon gali-laeus and Tilapia zilli.
By electron microscopy, apoptotic cells collected from Tilapia species infected with "Ich" showed an aggregation on the apical and basal parts of the ciliated and non-ciliated endothelial lining the gill epithelium.
Ultrastructural analysis showed that the chromatin in the liver of Ich-infected 0.
Niloticus was highly condensed and massed at the center of the nucleus.
Ul¬trastructural analysis of "Ich" infected O.
aureus showed that the nuclear mem¬brane of hepatocytes was also shrunken.
In S.
galilaeus, chromatin was highly condensed, fragmented and massed at the nuclear center, occasionally forming crescent-shaped masses.
Ultrastructural of 0.
Niloticus spleen showed that the macrophage number was comparatively high as compared to control.
In O.
au¬reus, damaged splenic cell number did not change, and phagocytic capacity of macrophages was not very high.
In Ich-infected S.
galilaeus, a marked decrease in splenic cells number was seen.
Analysis of DNA by agarose gel electropho¬resis on gill, liver and spleen cells showed a ladder of DNA fragments in mul¬tiple of 180bp in length, pointing to an internucleosomal DNA cleavage
American Psychological Association (APA)
S. al-Din, Abd al-Hakim& Abd al-Jabir, Ruwaydah A.. 2009. Ichthyphthirius multifilis infection induces apoptosis in different species of tilapia. Journal of the Egyptian Society of Parasitology،Vol. 39, no. 2, pp.665-678.
https://search.emarefa.net/detail/BIM-104186
Modern Language Association (MLA)
S. al-Din, Abd al-Hakim& Abd al-Jabir, Ruwaydah A.. Ichthyphthirius multifilis infection induces apoptosis in different species of tilapia. Journal of the Egyptian Society of Parasitology Vol. 39, no. 2 (Aug. 2009), pp.665-678.
https://search.emarefa.net/detail/BIM-104186
American Medical Association (AMA)
S. al-Din, Abd al-Hakim& Abd al-Jabir, Ruwaydah A.. Ichthyphthirius multifilis infection induces apoptosis in different species of tilapia. Journal of the Egyptian Society of Parasitology. 2009. Vol. 39, no. 2, pp.665-678.
https://search.emarefa.net/detail/BIM-104186
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 674-678
Record ID
BIM-104186