Repeated infestations of the rabbit with adult Rhipicephalus zambeziensis ticks resulted in a ten-fold reduction in engorgement weight of adult ticks and a significant decline in engorgement weight of nymphs. There was no evidence of cross-resistance against the South African bont tick, Amblyomma hebraeum. Immunization of rabbits with crude extracts of whole-tick protein significantly influenced engorgement weights and oviposition rates of adult R. zambeziensis. Histological studies of tissues from R. zambeziensis adults fed on resistant rabbits showed severe gut damage; this was associated with the binding of host IgG to mid-gut cells.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/BF01246094 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A comparison of Illumina and PacBio methods to build tick salivary gland transcriptomes confirms large expression of lipocalins and other salivary protein families that are not represented in available tick genomes.
Ticks Tick Borne Dis
November 2023
Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, Rockville, MD, 20852, USA. Electronic address:
Tick saliva helps blood feeding by its antihemostatic and immunomodulatory activities. Tick salivary gland transcriptomes (sialotranscriptomes) revealed thousands of transcripts coding for putative secreted polypeptides. Hundreds of these transcripts code for groups of similar proteins, constituting protein families, such as the lipocalins and metalloproteases.
View Article and Find Full Text PDFSouth African Buffalo-Derived Is Distinct From Other Buffalo and Cattle-Derived .
Front Genet
June 2021
Agricultural Research Council, Onderstepoort Veterinary Research, Pretoria, South Africa.
is a protozoan parasite transmitted by the brown-eared ticks, and . Buffaloes are the parasite's ancestral host, with cattle being the most recent host. The parasite has two transmission modes namely, cattle-cattle and buffalo-cattle transmission.
View Article and Find Full Text PDFSome gastrointestinal nematodes and ixodid ticks shared by several wildlife species in the Kruger National Park, South Africa.
Parasitology
May 2021
43 Leeming Drive, Ottawa, Canada.
Parasite surveys were conducted for 1–2 years in the Kruger National Park (KNP), South Africa on blue wildebeest, impalas, greater kudus, common warthogs and scrub hares. The host associations of some of the gastrointestinal nematode species infecting ≥60% of at least one of the five host species, were determined. These were Agriostomum gorgonis, Cooperia acutispiculum, Cooperia connochaeti, Cooperia hungi, Cooperia neitzi, Cooperioides hamiltoni, Gaigeria pachyscelis, Haemonchus bedfordi, Haemonchus krugeri, Haemonchus vegliai, Impalaia tuberculata, Longistrongylus sabie, Strongyloides papillosus, Trichostrongylus deflexus and Trichostrongylus thomasi.
View Article and Find Full Text PDFAmblyomma hebraeum is the predominant tick species on goats in the Mnisi Community Area of Mpumalanga Province South Africa and is co-infected with Ehrlichia ruminantium and Rickettsia africae.
Parasit Vectors
April 2020
Vectors and Vector-borne Diseases Research Programme, Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort, 0110, Republic of South Africa.
Background: In sub-Saharan Africa, Amblyomma ticks are vectors of heartwater disease in domestic ruminants, caused by the rickettsial pathogen Ehrlichia ruminantium. Immature tick stages often bite humans, whereby they act as vectors of tick-bite fever caused by Rickettsia africae. Moreover, Amblyomma ticks cause damage to livestock due to their feeding behaviour.
View Article and Find Full Text PDFMitochondrial and nuclear multilocus phylogeny of Rhipicephalus ticks from Kenya.
Mol Phylogenet Evol
November 2019
International Centre for Agricultural Research in the Dry Areas (ICARDA), P.O. Box 5689, Addis Ababa, Ethiopia; Centre for Genetics and Genomics, School of Life Sciences, University Park, University of Nottingham, Nottingham NG7 2RD, UK.
The morphological diversity of African ticks of the genus Rhipicephalus and subgenus Boophilus have been studied in detail. However, their taxonomy remains poorly resolved with limited molecular studies performed to improve inter-species discrimination. Herein, ribosomal cytochrome c oxidase I (COI), 12S ribosomal DNA (12S rDNA) and nuclear ribosomal DNA internal transcriber spacer 2 (ITS2) were analyzed in Rhipicephalus tick populations in Kenya.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!