| Grant number: | 12/01850-5 |
| Support Opportunities: | Regular Research Grants |
| Start date: | September 01, 2012 |
| End date: | August 31, 2014 |
| Field of knowledge: | Agronomical Sciences - Veterinary Medicine - Preventive Veterinary Medicine |
| Principal Investigator: | Pablo Henrique Nunes |
| Grantee: | Pablo Henrique Nunes |
| Host Institution: | Instituto de Biociências (IB). Universidade Estadual Paulista (UNESP). Campus de Rio Claro. Rio Claro , SP, Brazil |
Abstract
Ticks, one of the most important groups of arthropods are ectoparasites that suck the blood of vertebrates and are of great epidemiological importance, because they are vectors of many pathogens. These animals belong to the phylum Arthropoda, class Arachnida, subclass Acari and are classified into three families: Ixodidae, Argasidae and Nutalliellidae. They are widely distributed geographically and can parasitize a wide variety of vertebrates, including man. The tick species Amblyomma cajennense, popularly known as lone star tick, has great medical importance because it is vector of Rickettsia rickettsii, the cause of Brazilian spotted fever (BSF), which can lead the host to death. Despite increasing research with these animals, there are still gaps in the literature about some of the reproductive process of this ticks. Thus, this work will aim to describe in detail the testes of A. cajennense in fasting and fed, emphasizing the process of maturation of gametes and the formation of the spermatophore. (AU)
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