Biomaterial Database

Ultrastructural observations on the third-generation merozoites of Eimeria tenella in chicks. 1995

S J Ball, and P Daszak, and R M Pittilo, and C C Norton

Department of Life Sciences, University of East London, U.K.

The fine structure of the third-generation merozoites of Eimeria tenella is described from caecal enterocytes of chicks 120 h after experimental infections. The merozoites conformed to the general eimerian pattern except that they were bounded by two unit membranes. Young gamonts also conformed to the general eimerian pattern, and were limited by an outer unit membrane and an interrupted inner membrane. Enterocytes invaded by third-generation merozoites showed a loss of microvilli and large blebs that protruded into the caecal lumen. These blebs appeared to contain only cytoplasm and not any cell organelles.

UI	MeSH Term	Description	Entries
D007411	Intestinal Diseases, Parasitic	Infections of the INTESTINES with PARASITES, commonly involving PARASITIC WORMS. Infections with roundworms (NEMATODE INFECTIONS) and tapeworms (CESTODE INFECTIONS) are also known as HELMINTHIASIS.	Parasitic Intestinal Diseases,Disease, Parasitic Intestinal,Diseases, Parasitic Intestinal,Intestinal Disease, Parasitic,Parasitic Intestinal Disease
D008297	Male		Males
D011201	Poultry Diseases	Diseases of birds which are raised as a source of meat or eggs for human consumption and are usually found in barnyards, hatcheries, etc. The concept is differentiated from BIRD DISEASES which is for diseases of birds not considered poultry and usually found in zoos, parks, and the wild.	Disease, Poultry,Diseases, Poultry,Poultry Disease
D002432	Cecum	The blind sac or outpouching area of the LARGE INTESTINE that is below the entrance of the SMALL INTESTINE. It has a worm-like extension, the vermiform APPENDIX.	Cecums
D002645	Chickens	Common name for the species Gallus gallus, the domestic fowl, in the family Phasianidae, order GALLIFORMES. It is descended from the red jungle fowl of SOUTHEAST ASIA.	Gallus gallus,Gallus domesticus,Gallus gallus domesticus,Chicken
D003048	Coccidiosis	Protozoan infection found in animals and man. It is caused by several different genera of COCCIDIA.	Besnoitiasis,Besnoitiosis,Besnoitiases,Besnoitioses,Coccidioses
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D016786	Eimeria tenella	A species of coccidian protozoa that mainly infects domestic poultry.	Eimeria tenellas,tenella, Eimeria