The Apicomplexa are intracellular pathogens of animals, with the Coccidia being the largest group. Among these are the hemogregarines, which include some of the most common hemoparasites found in reptiles. Several studies have reported a possible pattern of prey–predator transmission for some of these parasites. Snakes from the Mediterranean region have been found to be parasitized with Hepatozoon spp. similar to those in lacertids and gekkonids, supporting the prey–predator transmission hypothesis. Here we analyzed specimens of the saurophagous genus Psammophis from North Africa, an ecologically different region. Through molecular analysis of tissue samples we detected 3 different apicomplexan parasites: Caryospora, Sarcocystis, and Hepatozoon. Caryospora was detected in a Forskål's sand snake Psammophis schokari from Algeria, constituting the first time these parasites have been detected from a tissue sample through molecular screening. The obtained Sarcocystis phylogeny does not reflect the relationships of their final hosts, with the parasites identified from snakes forming at least 3 unrelated groups, indicating that it is still premature to predict definitive host based on the phylogeny of these parasites. Three unrelated lineages of Hepatozoon parasites were identified in Psammophis, each closely related to lineages previously identified from different lizard groups, on which these snakes feed. This once again indicates that diet might be a key element in transmission, at least for Hepatozoon species of saurophagous snakes.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.
Vol. 99 • No. 5