Presence of two species of the Amblyomma cajennense complex (Acari: Ixodidae) and probable zones of sympatry in northwestern Colombia

2021 ◽  
pp. 101815
Author(s):  
Leidy Y. Acevedo-Gutiérrez ◽  
Luis E. Paternina ◽  
Marcelo B. Labruna ◽  
Juan D. Rodas
Keyword(s):  
Amblyomma Cajennense

A case of gynandromorphism in Amblyomma mixtum (Acari, Ixodidae)

2017 ◽  
Vol 43 (2) ◽  
pp. 268
Author(s):  
Fredy A. Rivera-Páez ◽  
Marcelo B. Labruna ◽  
Thiago F. Martins ◽  
Bruno Rodrigues-Sampieri ◽  
María I. Camargo-Mathias
Keyword(s):  
Tick Species ◽  
Morphological Characteristics ◽  
Amblyomma Cajennense ◽  
Literature Report ◽  
Male And Female ◽  
Natural Infestation

Gynandromorphism is a condition in which an organism simultaneously exhibits male and female morphological characteristics. In Colombia, the taxon Amblyomma cajennense is represented by the species Amblyomma patinoi and Amblyomma mixtum. In September of 2014, in the Colombian Orinoco region, adult ticks were collected and determined from natural infections in bovines and equines. A gynandromorph was described from a natural infestation on a bovine, and morphologically classified as A. mixtum. This is the first literature report of a gynandromorph of A. mixtum, and the first description of a gynandromorph for a tick species in Colombia.

Salivary glands of Amblyomma cajennense (Acari: Ixodidae): a histological and an ultrastructural overview

2011 ◽  
Vol 54 (2) ◽  
pp. 177-189 ◽  
Author(s):  
Sandra Eloisi Denardi ◽  
Karim Christina Scopinho Furquim ◽  
Gervásio Henrique Bechara ◽  
Maria Izabel Camargo-Mathias
Keyword(s):  
Salivary Glands ◽  
Amblyomma Cajennense

Analysis of saliva from Amblyomma cajennense (Acari: Ixodidae) species from Brazil by NAA

2011 ◽  
Vol 291 (2) ◽  
pp. 385-388 ◽  
Author(s):  
Daniella G. L. Oliveira ◽  
Simone M. Simons ◽  
Ana M. Chudzinski-Tavassi ◽  
Cibele B. Zamboni
Keyword(s):  
Amblyomma Cajennense

scholarly journals Artificial feeding of Amblyomma cajennense (Acari: Ixodidae) fasting females through capillary tube technique

2008 ◽  
Vol 17 (3) ◽  
pp. 128-132 ◽  
Author(s):  
Isis Abel ◽  
Fabíola N. Corrêa ◽  
Abisair A. Castro ◽  
Nathalie C. Cunha ◽  
Renata C. Madureira ◽  
...  
Keyword(s):  
Weight Gain ◽  
Complementary Feeding ◽  
Capillary Tube ◽  
Artificial Feeding ◽  
Biological Parameters ◽  
Feeding Period ◽  
Bovine Blood ◽  
Amblyomma Cajennense ◽  
Capillary Tubes ◽  
Feeding Technique

The present study aimed to adjust the artificial feeding technique through capillaries and to verify its influence over the biology of Amblyomma cajennense females. Five groups of 20 female ticks were formed. Females were starved for 45 days and then fed with citrated bovine blood using capillary tubes in different periods of time. Females were divided in five experimental groups with 20 individuals each and fed as follows: groups uninterruptedly fed for 12, 24, and 48 hours and groups fed 2 and 6 h a day, for a period of 8 days. Subsequently, ticks were exposed to rabbits for complementary feeding and their biological parameters were analyzed. TIcks were capable of feeding, showing rounded idiosoma, visible even to naked eyes, following the feeding period. The groups fed for 24 hours, 2 hours/day for eight consecutive days or 6h/day for eight consecutive days presented greater weight gain, without statistically significant differences. These results suggested that 24 hours of artificial feeding were enough for fasting females to increase weight by 2.43 mg. Artificial feeding through capillaries did not interfere with parasitic and non-parasitic phases of A. cajennense females.

scholarly journals Pesquisa de Rickettsia spp em carrapatos Amblyomma cajennense e Amblyomma dubitatum no Estado de São Paulo

2009 ◽  
Vol 42 (3) ◽  
pp. 351-353 ◽  
Author(s):  
Richard Campos Pacheco ◽  
Maurício Cláudio Horta ◽  
Adriano Pinter ◽  
Jonas Moraes-Filho ◽  
Thiago Fernandes Martins ◽  
...  
Keyword(s):  
Sao Paulo ◽  
São Paulo ◽  
Amblyomma Cajennense ◽  
Rickettsia Bellii

Foi pesquisada a presença de riquétsias em 3.545 carrapatos Amblyomma cajennense e 2.666 Amblyomma dubitatum. Através do teste de hemolinfa, reação em cadeia pela polimerase e isolamento de rickettsia em cultivo celular, todos os Amblyomma cajennense foram negativos, sendo que 634 (23,8%) Amblyomma dubitatum mostraram-se infectados com Rickettsia bellii.

scholarly journals Borrelia sp. in naturally infected Didelphis aurita (Wied, 1826) (marsupialia: didelphidae)

2000 ◽  
Vol 43 (3) ◽  
pp. 307-312
Author(s):  
Isis dos Santos Abel ◽  
Denclair Escobar de Almeida Junior ◽  
Adivaldo Henrique da Fonseca ◽  
Cleber Oliveira Soares ◽  
Márcia Mayumi Ishikawa
Keyword(s):  
Rio De Janeiro ◽  
Dark Field ◽  
Amblyomma Cajennense ◽  
Blood Tests ◽  
Blood Smears ◽  
Contrast Microscopy ◽  
In Captivity ◽  
Effective Diagnosis ◽  
Didelphis Aurita ◽  
Janeiro State

Fifty-six opossums (Didelphis aurita) were captured on the campus of Universidade Federal Rural do Rio de Janeiro, Seropédica county, Rio de Janeiro state, in order to investigate the occurrence of Borrelia sp among them in relation with the study of spirochaetemia and its ectoparasites. Blood tests were made through dark field and phase contrast microscopy, as well as the obtainment of blood smears. Smears were stained with Giemsa stain, which did not prove efficacy. There was no relation between results obtained through blood tests (13 opossum positive for Borreliasp.), and this technique (two positive animals). Parasitaemia studies of 37 animals kept in captivity as well as of several recaptures in which animals once negative proved to be positive days later, showed that haemoscopical studies could be used as an effective diagnosis tool. Ectoparasites from nine animals were classified; with the occurrence of nymphal Amblyomma cajennense and adult Ctenocephalides sp..

scholarly journals Repellent activity of DEET against Amblyomma cajennense (Acari: Ixodidae) nymphs submitted to diferent laboratory bioassays

2010 ◽  
Vol 19 (01) ◽  
pp. 12-17 ◽  
Author(s):  
S. F. Soares ◽  
R. de S. Braga ◽  
L. L. Ferreira ◽  
C. C. B. Louly ◽  
L. A. D. de Sousa ◽  
...  
Keyword(s):  
Repellent Activity ◽  
Amblyomma Cajennense ◽  
Laboratory Bioassays

scholarly journals Parâmetros biológicos de fêmeas adultas Amblyomma cajennense alimentadas em coelhos tratados com bioterápico ultradiluído

2008 ◽  
Vol 38 (5) ◽  
pp. 1476-1478 ◽  
Author(s):  
Luciana Rodrigues de Almeida ◽  
Nathalie Costa da Cunha ◽  
Raquel Silva Lisbôa ◽  
Renata Cunha Madureira ◽  
Charles Passos Rangel ◽  
...  
Keyword(s):  
Amblyomma Cajennense

Os bioterápicos são considerados medicamentos homeopáticos por serem preparados de acordo com a farmacotécnica homeopática, submetidos à diluição e dinamização. Com o objetivo de avaliar os efeitos da administração de bioterápico ultradiluído sobre parâmetros biológicos de carrapatos Amblyomma cajennense, oito coelhos de três meses de idade, separados em dois grupos de quatro animais, constituindo os grupos tratado e controle, receberam o bioterápico na potência 30 DH (Decimal Hering) e soro fisiológico 30DH, respectivamente. Em seguida, os animais foram infestados experimentalmente com 10 casais de carrapatos A. cajennense e submetidos novamente aos referidos tratamentos. O bioterápico ultradiluído foi preparado a partir de carrapatos adultos machos e fêmeas de A. cajennense. Foram avaliados parâmetros biológicos relativos à postura e à eclosão larval de A. cajennense. De acordo com os resultados obtidos, não foram detectados efeitos significativos sobre os parâmetros biológicos de fêmeas A. cajennense alimentadas em coelhos tratados com o bioterápico, quando comparados ao grupo controle. Novos testes, envolvendo outras espécies hospedeiras e o acompanhamento de infestações subseqüentes, devem ser dedicados à avaliação do potencial terapêutico profilático dos bioterápicos ultradiluídos nas ectoparasitoses dos animais domésticos.

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