Haematozoan parasites of the lizard Ameiva ameiva (Teiidae) from Amazonian Brazil: a preliminary note

Lainson, Ralph; Souza, M C De; Franco, C.M.

doi:10.1590/s0074-02762003000800016

Cited by 18 publications

(9 citation statements)

References 10 publications

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“…Smith et al 1994;Caudell et al 2002;Lainson et al 2003;Amo et al 2004). The zygote is active (ookinete) and the life cycle is heteroxenous, involving merogonous development and the formation of gametocytes in the circulatory system and/or visceral tissues of a vertebrate, and gamogony proper and sporogony within the gut of an invertebrate vector (Barnard and Upton 1994).…”

Section: Introductionmentioning

confidence: 99%

Prevalence and intensity of haemogregarine blood parasites and their mite vectors in the common wall lizard, Podarcis muralis

2005

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We describe the general field population biology of haemogregarines and mites in the wall lizard, Podarcis muralis, examining the factors that determine the prevalence and intensity of infection. The intensity of infection by haemogregarines in females was slightly lower in summer than in spring, whereas males maintained similar levels of intensity among all the seasons, probably due to immunosuppressive effects of testosterone. This is also supported because the prevalence and the infection intensity by mites were higher in males than in females. Parasite load was higher in lizards with better body condition, which could be reflecting the mortality of infected lizards with poor condition.

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Section: Introductionmentioning

confidence: 99%

Prevalence and intensity of haemogregarine blood parasites and their mite vectors in the common wall lizard, Podarcis muralis

2005

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“…Since that time, the cystic stages have been recorded in many Hepatozoon species (e.g. Paperna et al 2002, Lainson et al 2003, Paperna and Lainson 2004 and also in members of the genus Hemolivia (Michel 1973, Petit et al 1990). Michel (1973) recorded cysts containing mostly two, but rarely also four or six cystozoites in Hemolivia mauritanica.…”

Section: Discussionmentioning

confidence: 99%

Endogenous development of Hemolivia mauritanica (Apicomplexa: Adeleina: Haemogregarinidae) in the marginated tortoise Testudo marginata (Reptilia: Testudinidae): evidence from experimental infection

Široký¹,

Kamler²,

Frye³

et al. 2007

FOLIA PARASIT

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Abstract. Six young tortoises Testudo marginata Schoepff, 1792 were experimentally infected with Hemolivia mauritanica (Sergent et Sergent, 1904). The prepatent period ranged from 6 to 8 weeks. Young, smaller, club-like forms (6-9 × 3-6 µm) of gametocytes appeared in the peripheral blood first, whereas mature, elongated, cylindrical forms (9-12 × 5-7 µm) were detected after 1-2 weeks and predominated during later patency. Three of the infected tortoises were euthanized and dissected to study the endogenous stages. Meronts occurred in the cells of the reticulo-endothelial system and in the erythrocytes; these were observed mostly in parenchymatous organs. Mature forms measured 14.2 × 9.3 µm and contained 7-12 merozoites. Cysts with two (exceptionally one) cystozoites were also found predominantly in parenchymatous organs and measured 14.8 × 7.9 µm. Pathological changes attributable to Hemolivia were mild and limited to liver and kidneys. The role of individual developmental stages of haemogregarines is discussed with respect to evolution of heteroxenous life cycle and long-term persistence of parasites in their intermediate hosts.

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“…According to Sheldon and Verhulst (18), the host develops an immune defence against the parasite. Haemogregarines have an indirect life cycle involving definitive invertebrate hosts and vertebrate hosts such as lizards, turtle, snake or frogs (19)(20)(21).…”

Section: Introductionmentioning

confidence: 99%

On the Occurrence of a Haemogregarinae (Apicomplexa) Parasite from Freshwater Turtles of South 24 Parganas, West Bengal, India

Hossen¹,

Bandyopadhyay²,

Gürellı³

2013

TurkiyeParazitolDerg

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Objective: The aim of this study was to investigate Haemogregarine parasites (Apicomplexa: Haemogregarinidae) of freshwater turtles (Lissemys punctata andersoni, Geoclemys hamiltonii) of India. Methods: Turtles were collected by net from two ponds of South 24 Parganas, West Bengal, India. A small amount of blood was taken from the subcarapacial vein puncture site. The blood smears were prepared and air dried and fixed in absolute methyl alcohol. The slides were stained with Giemsa. Results: Haemogregarine parasites were recorded from the erythrocytes of turtles. Multiple stages of intraerythrocytic gametocytes (microgametocytes, macrogametocytes, early schizonts and mature schizonts) were observed in blood films. Conclusion: It was found that only twenty out of the twenty five turtles (80%) were infected with the parasite. The prevalence rate was higher in larger turtles in comparison to smaller ones. It was also found that female turtles had a higher prevalence of infection than males. (Turkiye Parazitol Derg 2013; 37: 118-22)

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Haematozoan parasites of the lizard Ameiva ameiva (Teiidae) from Amazonian Brazil: a preliminary note

Cited by 18 publications

References 10 publications

Prevalence and intensity of haemogregarine blood parasites and their mite vectors in the common wall lizard, Podarcis muralis

Prevalence and intensity of haemogregarine blood parasites and their mite vectors in the common wall lizard, Podarcis muralis

Endogenous development of Hemolivia mauritanica (Apicomplexa: Adeleina: Haemogregarinidae) in the marginated tortoise Testudo marginata (Reptilia: Testudinidae): evidence from experimental infection

On the Occurrence of a Haemogregarinae (Apicomplexa) Parasite from Freshwater Turtles of South 24 Parganas, West Bengal, India

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