FINE STRUCTURAL STUDY ON EIMERIA SP. INFECTING THE LIBYAN JIRDS (MERIONES LIBYCUS) IN SAUDI ARABIA: MEROGONY, MACROGAMETOGENESIS AND HOST-PARASITE RELATIONSHIP
ALANAZI, A., ALANAZI, A., EL-KABBANY, A. (2015). FINE STRUCTURAL STUDY ON EIMERIA SP. INFECTING THE LIBYAN JIRDS (MERIONES LIBYCUS) IN SAUDI ARABIA: MEROGONY, MACROGAMETOGENESIS AND HOST-PARASITE RELATIONSHIP. EKB Journal Management System, 45(2), 227-232. doi: 10.21608/jesp.2015.89809
ABDULLAH D. ALANAZI; ASHRAF E SAID ALANAZI; AMIRA I. EL-KABBANY. "FINE STRUCTURAL STUDY ON EIMERIA SP. INFECTING THE LIBYAN JIRDS (MERIONES LIBYCUS) IN SAUDI ARABIA: MEROGONY, MACROGAMETOGENESIS AND HOST-PARASITE RELATIONSHIP". EKB Journal Management System, 45, 2, 2015, 227-232. doi: 10.21608/jesp.2015.89809
ALANAZI, A., ALANAZI, A., EL-KABBANY, A. (2015). 'FINE STRUCTURAL STUDY ON EIMERIA SP. INFECTING THE LIBYAN JIRDS (MERIONES LIBYCUS) IN SAUDI ARABIA: MEROGONY, MACROGAMETOGENESIS AND HOST-PARASITE RELATIONSHIP', EKB Journal Management System, 45(2), pp. 227-232. doi: 10.21608/jesp.2015.89809
ALANAZI, A., ALANAZI, A., EL-KABBANY, A. FINE STRUCTURAL STUDY ON EIMERIA SP. INFECTING THE LIBYAN JIRDS (MERIONES LIBYCUS) IN SAUDI ARABIA: MEROGONY, MACROGAMETOGENESIS AND HOST-PARASITE RELATIONSHIP. EKB Journal Management System, 2015; 45(2): 227-232. doi: 10.21608/jesp.2015.89809

FINE STRUCTURAL STUDY ON EIMERIA SP. INFECTING THE LIBYAN JIRDS (MERIONES LIBYCUS) IN SAUDI ARABIA: MEROGONY, MACROGAMETOGENESIS AND HOST-PARASITE RELATIONSHIP

Journal of the Egyptian Society of Parasitology
Article 2, Volume 45, Issue 2, August 2015, Page 227-232  XML PDF (2.93 MB)
Document Type: Original Article
DOI: 10.21608/jesp.2015.89809
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Authors
ABDULLAH D. ALANAZI1; ASHRAF E SAID ALANAZI1; AMIRA I. EL-KABBANY2
1Department of Biological Sciences, Faculty of Science and Humanities, Shaqra University, Saudi Arabia.
2Department of Zoology, Faculty of Science, Zagazig University, Egypt.
Abstract
Ultrastructural characteristics of merogony and the development of mature merozoits and macrogametogensis of Eimeria sp. infecting the Libyan jird were investigated. Mono and binucleated schizonts were detected. Developed merozoites showed all the apicomplexan architecture (Pellicle, conoid, rhoptries, micronemes … etc). Transformation into macrogametes were studied. Early macrogamonts characterized by the loss of all apicomblexan characters and the appearance of wall-forming bodies were the first indication for macrogametogenesis. As development precepded, two types of wall forming bodies (I, II) were clearly detected. Cell organelles including amylopectin granules and lipid globules were greatly increased in mature macrogametes. Young oocyst (zygote) with double-layer oocyst wall were also detected. Host cell reaction due to infection included hypertrophy of the infected host cell, enlargement, deformation and displacement of the host cell nucleus. Swollen and degeneration of mitochondria, endoplasmic reticulum and cytoplasmic vacuolation of the host cell. All parasite stages were enclosed in parasitophorous vacuole limited by unit membrane. Extended damage effect appeared in some neighboring host cell indicating the secretion of some toxins by the parasite.
Keywords
Eimeria spp; Oocyst; Ultrastructure; Libyan jird; Saudi Arabia
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