Contribution on the study of Isospora hemidactyli Carini, 1936 and a report of an adeleid pseudoparasite of the house gecko Hemidactylus mabouia, from the Rio de Janeiro Metropolitan Region, Brazil

Abstract

A description of the coccidium Isospora hemidactyli from the house gecko Hemidactylus mabouia, a very common at dwellings in Rio de Janeiro Metropolitan Region, was made in this study. Histograms and linear regression were made for this species and determined the homogeneity of these oocysts despite of large range. Besides it, polysporocystid oocysts also were recovered from feces of the H. mabouia house gecko and they were similar to those described previously as the genus Adelina. This species should be parasitizing an invertebrate ingested by house gecko, and for that reason, is a pseudoparasite. Oocysts of I. hemidactyli were subspherical to ellipsoidal, 24.4 × 22.3μm, with single-layered wall and one polar granule. Sporocysts were subspherical to ellipsoidal, 11.8 × 9.8μm with Stieda and substieda bodies, residuum and sporozoites with refractile body. Oocysts of the pseudoparasite Adelina sp. were ellipsoidal, 36.3 × 30.9μm, with bi-layered wall and without micropyle, residuum and polar granule. Eight to 15 sporocysts were presents and were subspherical to broadly ellipsoidal, 12.4 × 11.2μm. Stieda and substieda bodies were absent. Sporozoites present refractile bodies at both ends.

Six new species of coccidia (Apicomplexa: Eimeriidae) from endangered Phelsuma spp. geckoes (Sauria: Gekkonidae) of the Black River Gorges National Park, Mauritius

“…The large number of sporocysts seen in the current sample, and their large size suggest that their most likely identity is an unidentified adeleid coccidian from an invertebrate host ingested by the reptile. This phenomenon has been described previously (Berto et al 2008) and has been the source of previous misidentifications.…”

Isosporoid Coccidia (Apicomplexa: Eimeriidae) parasites of tanagers (Passeriformes: Thraupidae) from the Marambaia Island, Brazil

“…recovered from different host species. For this, the software Microsoft® Excel 2007 was used to calculate the mean, variance, degree of freedom and p value (Gomez et al 1982, Sampaio 2002, Berto et al 2008c; (3) linear regression aimed to assess measures of width on length of Isospora sp. oocysts.…”

Adeleidea pseudoparasites in Cerdocyon thous Linnaeus, 1766 in Southern

“…The coccidia of the Adeleidae Family are parasitic and/or symbiotic organisms of invertebrates, yet they are found in the digestive tract of vertebrate hosts through the ingestion of these invertebrates (BERTO et al, 2010). The insectivorous habit of some vertebrates is essential to the proliferation of these protozoa, as they are dependent on the feeding habits of the animals that prey on them and guarantee their dispersal (LOPES et al, 2013).…”

“…In the feces of a cat in Santa Maria (RS), and a pampas fox, in Cachoeira do Sul (RS), were found two species of adeleidae menbers (GRESSLER et al, 2009), possibly as a result of diet of these animals, including arthropods. Dipterous (MILUTINOVIĆ et al, 1995), grasshoppers, cockroaches, crickets, and beetles (BERTO et al, 2010), hunted or accidentally ingested, have been described parasitized by coccidia of the Adeleidae Family. Due to the high resistance in the wall of oocystes and sporocystes of Coccidia, they do not lose their morphological characteristics when passing though the intestinal tract and being eliminated in the feces of non-host omnivores and carnivores, favoring their survival in the environment.…”

“…Due to the high resistance in the wall of oocystes and sporocystes of Coccidia, they do not lose their morphological characteristics when passing though the intestinal tract and being eliminated in the feces of non-host omnivores and carnivores, favoring their survival in the environment. Grains, mainly stored grains, may be attacked by several species of insects and plagues, predominantly by Tenebrio that may harbor Adeleidea (BERTO et al, 2008). C. thous is a predator with an opportunistic strategy, with an omnivore diet that includes mainly small mammals, birds, insects and fruit, usually consuming the most abundant food resources for each season (PEDÓ et al, 2006).…”