identification of hymenolepis diminuta cysticercoid larvae in tribolium castaneum (coleoptera:tenebrionidae) beetles from iran
نویسندگان
چکیده
background: hymenolepis diminuta is a cestod of rodents and rarely infects humans. infection in humans is via ingestion of infected insects. this study was aimed to detect h. diminuta cysticercoids in red flour beetles, tribolium castaneum, and cockroaches originated from different regions of iran. methods: the red flour beetles and cockroaches were collected from local bakeries in five cities including tehran, ahvaz, kazerun, and sabzevar during 2010–2011. some beetles and cockroaches were colonized in insectary and adults from f1 generation were fed on h. diminuta eggs. both laboratory-infected and field-collected samples were dissected and examined for cysticercoids. detection of h. diminuta dna in t. castaneum beetles was performed by targeting a partial sequence of ribosomal gene. results: except the beetles from ahvaz, all specimens were negative for cysticercoid by microscopy. of the four dissected beetles from ahvaz, one harbored 12 cysticercoids. also, 110 (52%) of laboratory-infected beetles showed infection with an average of 12–14 larvae. none of the cockroaches was infected. two beetles from ahvaz, including the remainder of the microscopic positive specimen, yielded the expected amplicon in pcr assay. the h. diminuta dna sequences generated in this study were identical and matched 97–100% with similar sequences from genbank database. conclusion: lack of infection in the majority of beetles may reflect a low rat infestation rate in those areas, alternatively, the examined specimens might not have been the representative samples of the t. castaneum populations.
منابع مشابه
Identification of Hymenolepis diminuta Cysticercoid Larvae in Tribolium castaneum (Coleoptera: Tenebrionidae) Beetles from Iran
BACKGROUND Hymenolepis diminuta is a cestod of rodents and rarely infects humans. Infection in humans is via ingestion of infected insects. This study was aimed to detect H. diminuta cysticercoids in red flour beetles, Tribolium castaneum, and cockroaches originated from different regions of Iran. METHODS The red flour beetles and cockroaches were collected from local bakeries in five cities ...
متن کاملComparative Proteomic Analysis of Hymenolepis diminuta Cysticercoid and Adult Stages
Cestodiases are common parasitic diseases of animals and humans. As cestodes have complex lifecycles, hexacanth larvae, metacestodes (including cysticercoids), and adults produce proteins allowing them to establish invasion and to survive in the hostile environment of the host. Hymenolepis diminuta is the most commonly used model cestode in experimental parasitology. The aims of the present stu...
متن کاملPatch Exploitation by female Red Flour Beetles, Tribolium castaneum
The red flour beetle, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) has had a long association with human stored food and can be a major pest in anthropogenic structures used for the processing and storage of grain-based products. Anthropogenic structures are fragmented landscapes characterized by spatially and temporally patchy resources. Here we investigate the ability of female T....
متن کاملhymenolepis diminuta (rodolphi, 1819) infection in a child from iran
hymenolepis diminuta is a cestode frequently found in rodents and humans. species of flour moths of the genus pyralis and beetles in the genus tribolium are common intermediate hosts. humans can be accidentally infected through the ingestion of the insects, including larvae in precooked cereals, dried fruits or other food items, and directly by ingesting the insects from the environment. this ...
متن کاملEffect of age of the intermediate host Tribolium confusum (Coleoptera) on infection by Hymenolepis diminuta (Cestoda).
A cross-sectional study of 27 cohorts of Tribolium confusum aged 2-78 wk was done to examine effects of host age on exposure to eggs of Hymenolepis diminuta under standardized conditions. Pre-exposure, fasting, and postexposure mortality were low, sex ratio was equal, and fecundity of hosts was high during the first 30 wk, followed by increasing mortality and male bias of the sex ratio, and dec...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
journal of arthropod-borne diseasesجلد ۲۰۱۵، شماره ۱۰، صفحات ۰-۰
کلمات کلیدی
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023