U.S. flagAn official website of the United States government
                    Here's how you know **Official websites use .gov**
                            
                            A **.gov** website belongs to an official government organization in the United States.
 **Secure .gov websites use HTTPS**
                            
                            A **lock** (                            
                              A locked padlock                                                      
                            
                            ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


Menu Agricultural Research Service
						
                    U.S. DEPARTMENT OF AGRICULTURE
 close



Research
                Research Home
                            National Programs
                            Research Projects
                            Scientific Manuscripts
                            International Engagement
                            Scientific Software/Models
                            Databases and Datasets
                            Office of Scientific Quality Review
            Media
                News & Features
                            Multimedia
                            Briefing Room
                            Down on the Farm
                            Press Room
                            Science in Your Shopping Cart
                            Scientific Discoveries
                            Tellus
                            Under the Microscope
            About ARS
                About ARS Home
                            Staff Directory
                            Labs and Research Centers (Map)
                            Headquarter Offices
                            Organizational Chart
                            Employee Services (REE Employees Only)
                            Office of Outreach, Diversity, and Equal Opportunity
            Work With Us
                Work With Us Home
                            ARS Vacancies at USAJOBS
                            Careers at ARS Information
                            Scientific Collaborations
                            Extramural Agreements
                            1890 Faculty Research Sabbatical ProgramSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Research Publications at this Location





- ARS National Programs
- Search for a scientific manuscript
- Search for a research project
- ARS Software
- Programs and Projects
- Collaborations
- Subjects of Investigation
- Publications

Title:   Author  item
                                            Dubey, Jitenderitem
                                            SHKAP, V - KIMRON VET. INST.item
                                            PIPANO, E - KIMRON VET. INST.item
                                            FRITZ, D - USAMRIID
  Submitted to: Journal of Eukaryotic Microbiology
                                    Publication Type: Peer Reviewed Journal
                                    Publication Acceptance Date: 5/1/2003
                                    Publication  Date: 5/20/2003
                                    Citation: Dubey, J.P., Shkap, V., Pipano, E., Fritz, D.L. 2003. Ultrastructure of Besnoitia besnoiti tissue cysts and bradyzoites. Journal of Eukaryotic Microbiology. 50:240-244.Interpretive Summary: Besnoitia besnoiti is a single celled parasite that causes mortality in cattle.  Its source of infection remains unknown.  Scientists at the Beltsville Agricultual Research Center describe structure of this parasite in detail to help diagnose the disease.  These results will be of interest to biologists, parasitologists and pathologists.
                                Technical Abstract: Besnoitia besnoiti is an economically important tissue cyst-forming apicomplexan of cattle in Africa and Israel.  Tissue cysts and bradyzoites of B. besnoiti from the skin of a naturally-infected bull were studied by transmission electron microscopy.  Tissue cysts enclosed host cell and bradyzoites.  Bradyzoites were 6 -- 7.5 x 1.9 -- 2.3 μm in size and contained organelles found in coccidian merozoites including numerous micronemes, rhoptries, amylopectin granules, and a posteriorly located nucleus.  Enigmatic bodies, characteristically found in Besnoitia sp. bradyzoites, were not observed.  Therefore, enigmatic bodies should be removed as a generic character of the bradyzoites of Besnoitia species.
Key Words. Cattle, ultrastructure, enigmatic bodies.


Return to top


Connect with ARS Sign up


ARS Home
                            USDA.gov
                            Plain Writing
                            Policies & Links
                            Civil Rights Statements
                            FOIA
                            Accessibility Statement
                            Privacy Policy
                            Non-Discrimination Statement
                            Quality of Information
                            USA.gov
                            WhiteHouse.gov