The male genital accessory gland complex of the cattle tick Boophilus microplus (Canestrini, 1887) (Acari: Ixodidae)

García-Fernández, Casimiro; Garcia, Sonia Maria Lauer de; Garcia, Rosane Nunes

doi:10.1590/s0034-71081998000300010

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…The morphological description of the internal organs of the ticks is considered an important tool in parasitology, providing basis for further studies, mainly concerning chemical or natural methods of control (Camargo-Mathias and Furquim 2013). The morphology of the testes and accessory glands has been already described for some species of ticks (Sonenshine 1991;Garcia-Fernandez et al 1998 ), as well as the variations of the reproductive organ according to the feeding stage, which influences the spermatogenesis (Coons and Alberti 1999;Matsuo and Mõri 2000).…”

Section: Introductionmentioning

confidence: 99%

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Testes of fed and unfed Amblyomma cajennense ticks (Acari: Ixodidae). First morphological data

et al. 2014

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The tick species Amblyomma cajennense is of great medical importance, as it is the vector of the Rickettsia rickettsii, agent of Rocky Mountain spotted fever. The objective of this study was to perform a morphological and histological analysis of the male reproductive system of fed and unfed A. cajennense. The male reproductive system is formed by a pair of tubular testes dorsolaterally arranged in opisthosoma. They were divided into three regions: proximal region (next to vas deferens), median region and distal region (nearest to the blind ending of testis). Proximal regions are connected to the seminal vesicles by the deferent ducts and to accessory glands, similar to what was observed for other Ixodidae. Feeding plays a fundamental role in the development of the reproductive system, as in unfed individuals, the testes, the seminal vesicles and the accessory glands were smaller comparing with the fed individuals. In addition, the prospermia, precursors of the spermatozoa, were only observed in fed individuals. The germ cells were organized in spermatocysts, enveloped by a connective tissue. The cells in more advanced stages of spermatogenesis were localized in the distal region, in accord with studies in other ticks, but opposite to what was observed for other arthropods.

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Section: Introductionmentioning

confidence: 99%

“…The morphology of the testes and accessory glands has been already described for some species of ticks (Sonenshine ; Garcia‐Fernandez et al . ), as well as the variations of the reproductive organ according to the feeding stage, which influences the spermatogenesis (Coons and Alberti ; Matsuo and Mõri ).…”

Section: Introductionmentioning

confidence: 99%

Testes of fed and unfed Amblyomma cajennense ticks (Acari: Ixodidae). First morphological data

et al. 2014

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Pictorial dissection guide and internal anatomy of the cattle tick, Rhipicephalus (Boophilus) microplus (Canestrini)

Tidwell

Treviño

Thomas

et al. 2021

Ticks and Tick-borne Diseases

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Toxic action of Acmella oleracea extract on the male reproductive system of Amblyomma cajennense ticks

Anholeto

Oliveira

Rodrigues

et al. 2017

Veterinary Parasitology

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The present study evaluated through morphohistological and histochemical techniques the effects of different concentrations of crude ethanolic extract of A. oleracea (EEAO) (Jambu) on the male reproductive system of Amblyomma cajennense sensu stricto (s.s.) ticks. The toxicity of this natural chemical was stablished, signalizing the promising potential of the compound as a strategy to control ectoparasites in the near future. For the experiment, 100 males fed on host rabbits with homogeneous weight (p>0.05) were used. The ticks were divided into five groups (10 animals each): Control 1-exposed to distilled water; Control 2-exposed to ethanol 50% and DMSO 1%; Treatment 1-3-exposed to the concentrations of 6.2, 12.5 and 25mg/mL of the EEAO, respectively, diluted in ethanol 50% and DMSO 1%, with exposure by immersion. After exposure, the males were dissected for the removal of the reproductive system and subjected to routine histological analysis with HE staining and histochemical techniques (PAS for the detection of neutral polysaccharides and Bromophenol blue to detect total proteins). The exposed individuals showed alterations in the glandular complex cells; however, the testes remained intact. The secretory cells of the multilobulated accessory glands presented intense cytoplasmic vacuolation. Additionally, the synthesis and secretion were reduced in the secretion granules, mainly concerning the polysaccharides, glyco- and lipoprotein elements, substances that will constitute the seminal fluid and enable the capacitation of spermatozoa in the female genital tract and also necessary for the formation of the spermatophore, which will encapsulate the mature spermatids. The alterations were dose-dependent, i.e., more intense and severe as the concentration of the product increased. .This experiment confirmed the cytotoxic potential of A. oleracea ethanolic extract in the concentrations of 6.2, 12.5 and 25mg/mL on the reproductive system of A. cajennense s.s. male ticks.

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The male genital accessory gland complex of the cattle tick Boophilus microplus (Canestrini, 1887) (Acari: Ixodidae)

Cited by 3 publications

References 14 publications

Testes of fed and unfed Amblyomma cajennense ticks (Acari: Ixodidae). First morphological data

Testes of fed and unfed Amblyomma cajennense ticks (Acari: Ixodidae). First morphological data

Pictorial dissection guide and internal anatomy of the cattle tick, Rhipicephalus (Boophilus) microplus (Canestrini)

Toxic action of Acmella oleracea extract on the male reproductive system of Amblyomma cajennense ticks

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