The fine structure of developmental stages of Babesia caballi in the salivary glands of Hyalomma truncatum.
نویسندگان
چکیده
The development of Babesia caballi in the salivary glands of Hyalomma truncatum was studied at the electron microscopic level. Kinetes were first observed in the salivary glands of ticks on Day 2 of tick feeding and on each subsequent day of feeding until engorgement on Day 8. Sporogony appeared to involve the formation of cytomeres. After continued nuclear division, sporozoites formed when individual rounded nuclei were incorporated into portions of cytoplasm. Sporozoites were first observed on Day 4 of tick feeding and contained typical Babesia spp. organelles with a polar ring and up to 4 rhoptries, spherical bodies, a nucleus, mitochondria, endoplasmic reticulum and micronemes. The infection rate in the ticks was approximately 80%.
منابع مشابه
The transovarial transmission of Babesia caballi by Hyalomma truncatum.
Babesia caballi, isolated from a horse that originated from South West Africa/Namibia, was transmitted transovarially by adult Hyalomma truncatum. B. caballi proved to be highly infective for adult H. truncatum. Forty-five per cent of ticks feeding on a reacting animal with an extremely low parasitaemia became infected. In spite of a low parasitaemia, the ticks were severely affected by the par...
متن کاملMolecular detection of Babesia spp in sheep and vector ticks in North Khorasan province, Iran
Babesiosis is an important tickborne disease in the sheep of Iran. OBJECTIVES: A molecular study was carried out in North Khorasan province, Iran in 2010-2011, designed to identify Babesia spp. infection of both sheep and ticks. METHODS: Ninety sheep from different flocks were clinically examined and blood samples were collected with ixodid ticks . The collected ticks were separated into 82 ti...
متن کاملAn ultrastructural study of the development of Babesia occultans in the salivary glands of adult Hyalomma marginatum rufipes.
The development of Babesia occultans in the salivary glands of adult Hyalomma marginatum rufipes was studied with the electron microscope. Sporogony involved a process of multiple fission in which sporozoites formed from the periphery of a polymorphous sporont. Different stages of development were found concurrently in individual acini as well as within individual acinar cells. Mature sporozoit...
متن کاملDetection of Theileria equi and Babesia caballi using microscopic and molecular methods in horses in suburb of Urmia, Iran
Equine piroplasmosis is a severe disease of horses caused by the intra-erythrocyte protozoan, Theileria equi and Babesia caballi. The aim of this study was to identify equine piroplasmosis based on molecular and morphometrical features in horses in suburb of Urmia, West Azerbaijan province, Iran. From April to September 2011, a total number of 240 blood samples were collected ...
متن کاملThe isolation and transmission of an unidentified Babesia sp. to cattle by Hyalomma truncatum Koch 1844.
An unidentified Babesia sp. which causes a mild disease in cattle was isolated in a splenectomized ox that received pooled blood from field cattle. That this organism is pleomorphic and resembles Babesia occultans makes it difficult to differentiate between these organisms microscopically. Initially, it was suspected that this Babesia could be B. occultans. Several attempts to transmit this par...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- The Onderstepoort journal of veterinary research
دوره 56 3 شماره
صفحات -
تاریخ انتشار 1989