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1.
Four new Isospora species (Apicomplexa: Eimeriidae) are described from reptiles collected in Seychelles. Oöcysts of I. gardneri n. sp. from Phelsuma astriata astriata, P. sundbergi sundbergi and P. sundbergi longinsulae are ellipsoid, 28.9 (22–31) × 23.5 (18–24) m with a rough 1.5–2 m thick wall. A micropyle, oöcyst residuum and polar granule are absent. Sporocysts are ellipsoid, 14.9 (12.5–17) × 8.8 (8–9.5) m, with a dome-like Stieda body, globular substieda body and a sporocyst residuum consisting of small granules; and the sporozoites have transversal striations. Oöcysts of I. seychellensis n. sp. from 3/7 Mabuya seychellensis are ellipsoid, 19.8 (17.5–21.5) × 15.3 (14.5–16) m. A micropyle, oöcyst residuum and polar granule are absent. Sporocysts are ovoid to broadly ovoid, 11.2 (10–12) × 7.4 (7–8) m, with Stieda and substieda bodies. A sporocyst residuum is present, consisting of small granules; and the sporozoites have distinct transverse striations. Oöcysts of I. tigris n. sp. from 1/1 Calumma tigris are ellipsoid, 22.5 (19–24) × 18 (16–20) m. A micropyle, oöcyst residuum and polar granule are absent. Sporocysts are ovoid or ellipsoid, 13.6 (12–15) × 7 (6–8) m, with large Stieda body and substieda bodies. A sporocyst residuum is present, consisting of numerous small granules; and the sporozoites are vermiform with distinct transverse striations. Oöcysts of I. ladiguensis n. sp. from Phelsuma sundbergi ladiguensis and P. sundbergi longinsulae are spherical to subspherical, 13.2 (12–13.5) × 12 (9–13) m, without micropyle and oöcyst residuum but with one globular polar granule. Sporocysts ovoid, 9 (8–10) × 5.6 (5–6) m, with dome-like Stieda and subglobular substieda body; and the sporozoites are vermiform with distinct transverse striations. 相似文献
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3.
Five new species of Eimeria are described from lizards. Eimeria baltrocki n. sp. was found in the berber skink, Eumeces schneideri, from Egypt. The oöcysts are cylindroidal, averaging 38 × 18.3 m, with a single thick oöcyst wall. Most oöcysts possess a single polar granule; a micropyle and oöcyst residuum are absent. The sporocysts are ellipsoidal and average 11.5 × 8.1 m, each with a large, globular sporocyst residuum; the Stieda body is absent. Eimeria anolidis n. sp. is described form the common anole, Anolis carolinensis, from Florida, USA. The oöcysts are cylindroidal and average 31 × 15.8 m with a thick, single-layered oöcyst wall. Two polar granules are usually present; a micropyle and oöcyst residuum absent. The sporocysts are ellipsoidal and average 9.4 × 7.5 m with a globular sporocyst residuum; the Stieda body is absent. Eimeria guyanensis n. sp is recorded in the ameiva, Ameiva ameiva, from Guyana, South America. The oöcysts are spherical to subspherical, average 19.0 × 17.8 m and possess a thick, single-layered oöcyst wall. Numerous polar granules are present (n > 5); a micropyle and oöcyst residuum are absent. The sporocysts are spherical to subspherical, average 7.5 × 7.8 m and possess a compact globular sporocyst residuum; the Stieda body is absent. Eimeria phelsumae n. sp. was recovered from the giant day gecko, Phelsuma madagascariensis grandis, from Madagascar, which harboured a simultaneous infection of E. brygooi. The oöcysts measured 32 × 15 m and are cylindroidal without polar granules, a micropyle or oöcyst residuum, or a Steida body. The sporocysts are ellipsoidal and average 9.8 × 7 m, with a loosely clumped, granular sporocyst residuum; the Steida body is absent. Eimeria leiocephali n. sp. was discovered in the faeces of the ornate ground iguana, Leiocephalus barahonensis, from Haiti. The oöcysts are spherical to subspherical, 21 × 19 m, and contain a number of polar granules (n > 5); a micropyle and oöcyst residuum are absent. The sporocysts are spherical, 8 m in diameter and lack a sporocyst residuum. Eimeria turcicus and E. lineri were found in faeces of Hemidactylus turcicus turcicus from the host's country of origin, Turkey. 相似文献
4.
A new species of isosporan (Apicomplexa: Eimeriidae) is reported from two magpie jays Calocitta formosa (Swainson) (Passeriformes: Corvidae) from Costa Rica. Oöcysts of Isospora calocitta n. sp. are spherical to subpherical, 28.8 × 27.7 (26.5–31.0 × 25.0–29.5) m and have a shape index (length/width) of 1.04 (1.00–1.11). A micropyle and oöcyst residuum are absent, but 1–3 polar granules are present. Sporocysts are ovoidal, 20.1 × 12.6 (19.0–21.5 × 11.5–13.5) m, and have Stieda and substieda bodies and a shape index of 1.60 (1.47–1.69). A diffuse sporocyst residuum is present and each sporozoite contains two refractile bodies. A list of Isospora spp. in corvid birds is presented. 相似文献
5.
Two new species of Coccidia (Apicomplexa: Eimeriidae) are described from European accipitrid raptors (Falconiformes: Accipitridae). Oöcysts of Caryospora aquilae n. sp. found in faeces of the gold eagle Aquila chrysaetos are subspherical to broad ellipsoidal and measure 43 (40–49) × 37.5 (34–39) m. Polar granule, oöcyst residuum and micropyle are absent. Each oöcyst contains one spherical to subspherical slightly polygonal sporocyst measuring 23.8 (23–25) × 23.3 (22–25) m. Stieda and substieda bodies are absent. The sporocyst residuum is composed of numerous small granules less than 0.5 m in diameter dispersed randomly among the sporozoites. Sporulated oöcysts of Caryospora circi n. sp. from faeces of the marsh harrier Circus aeruginosus are widely oval, measuring 24.5 (23–25) × 21.8 (21–24) m. A polar granule, oöcyst residuum and micropyle are absent. Each oöcyst contains one spherical to subspherical sporocyst measuring 16.2 (15–17) × 15.6 (15–17) m. A compact granular, spherical to subspherical sporocyst residuum, 10.4 (10–11) × 8.5 (7–9), was present in 76% of measured sporocysts. In 24% of sporocysts the granules of sporocyst residuum were scattered among the sporozoites. 相似文献
6.
Oocysts of Isospora ernsti n. sp. and Isospora blagburni n. sp. are described from the black-capped bulbul Pycnonotus xanthopygos from Lincoln Park Zoo, Chicago, Illinois. The bird came from southwestern Africa seven years earlier. I. ernsti oocysts are ellipsoidal to bluntly ovoid, 28–38 × 23–31m (mean 34 × 28 m) and have a single-layered oocyst wall. Micropyle, oocyst residuum and polar granules are absent. Sporocysts are elongate ovoid, 24–30 × 11–16 m (mean 27×13 m). Stieda and substiedal bodies and sporocyst residuum are present. I. blagburni oocysts are spherical to subspherical. 21–28 × 19–26 m (mean 25 × 23 m) and have a single oocyst wall. Sporocysts are ovoid and 17–23 × 10–13 m (mean 20 × 12 m). Stieda and substiedal bodies and sporocyst residuum are present. 相似文献
7.
A new species of isosporan parasite is described from the faecal contents of the buff-throated foliage-gleaner Automolus ochrolaemus and the olive-backed foliage-gleaner A. infuscatus collected in the rainforests of eastern Ecuador. Sporulated oöcysts are subspherical to ovoidal, 23.4×21.3 (18–28×17–24) m, colourless, with a smooth, double-layered wall with the inner layer darker and thinner; the shape-index (length/width) is 1.1 (1–1.22). Oöcysts contain one polar granule, but lack a micropyle and an oöcyst residuum. Sporocysts are ovoidal, 15.4×9.9 (14–17×–11) m, with a smooth single-layered wall and a small nipple-like Stieda body attached to a small, inconspicuous, acentric substieda body. Sporozoites are vermiform with one prominent posterior, refractile body (c. 4×5 m), and a centrally located nucleus of equal size. Sporozoites are randomly arranged in the sporocysts with a subspherical sporocyst residuum composed of coarse granules. 相似文献
8.
Parasitological examination of European otter originating from Extremadura, Spain revealed the presence of a new isosporan species. Oöcysts of Isospora lutrae n. sp. are spherical to subspherical, 31.2 (27.5–32) × 29.6 (28–31) m and have a smooth wall c. 1 m thick. Sporocysts are ellipsoidal, 18.2 (17–19) × 14.4 (14–16) m and lack Stieda and substieda bodies. A spherical sporocyst residuum is present, consisting of granules scattered among the sporozoites. Sporozoites are spindle-shaped, 12.4 × 2.5 m and have anterior and posterior refractile bodies. Based on its unique morphologic structure and host, I. lutrae is considered to be new. 相似文献
9.
Sam R. Telford Jr. 《Systematic parasitology》1998,40(3):195-202
Eight species of coccidia (Apicomplexa: Eimeriidae) are reported from Panamanian lizards. –Eimeria randolphi n. sp. is a biliary parasite of –Gymnopthalmus speciosus (Gymnopthalmidae) with cylindrical oöcysts, 29.1 × 16.8 m (25.0–31.5 × 15.0–18.5), an oöcyst length/width index (shape-index, SI) of 1.73 (1.46–2.07) and no polar granule or oöcyst residuum. Ovoidal sporocysts are 9.5 × 7.8 m (9.0–10.5 × 7.0–8.5), with an SI 1.21 (1.06–1.43), a sporocyst residuum and no Stieda body. –E. gymnopthalmi n. sp., an intestinal parasite of –G. speciosus, has round to oval oöcysts of 22.4 × 20.5 m (21–24 × 18–23), an SI of 1.09 (1.00–1.28) and no polar granule or oöcyst residuum. Sporocysts are ovoidal, 8.9 × 7.7 m (8–10 × 7–9), with an SI of 1.16 (1.06–1.29), a prominent sporocyst residuum and no Stieda body. –E. lepidophymae n. sp. parasitises the gall-bladder of –Lepidophyma flavimaculatum (Xantusiidae) and has cylindrical oöcysts of 36.7 × 18.5 m (34.0–40.0 × 16.0–20.5), an SI of 1.99 (1.79–2.31) and no polar granule or oöcyst residuum. Sporocysts are ovoidal, 10.3 × 8.8 m (9.0–11.0 × 8.0–9.5 m), with an SI of 1.17 (1.06–1.29), a sporocyst residuum and no Stieda body. –E. limifronsi n. sp. parasitises the intestine of –Anolis limifrons (Polychrotidae). Oöcysts are oval, 22.5 × 16.0 m (20.0–26.0 × 14.5–17.5), an SI of 1.41 (1.18–1.73) and no polar granule or oöcyst residuum. Sporocysts are ovoidal, 8.4 × 7.5 m (7.5–9.0 × 7.0–8.5), an SI of 1.13 (1.00–1.29), a small sporocyst residuum and no Stieda body. –Isospora limifronsi n. sp. parasitises –A. limifrons and has oval to round oöcysts with a rough, pitted wall, 24.5 × 22.4 m (20–27 × 19–25), an SI of 1.09 (1.00–1.23) and no oöcyst residuum or polar granule. Ovoidal sporocysts are 14.7 × 10.2 m (13–17 × 9–13), with an SI of 1.44 (1.27–1.58), a central sporocyst residuum, Stieda body and a prominent, homogeneous sub-Stieda body. –Anolis limifrons is also parasitised by –I. achiotensis n. sp. The oval to round oöcysts are 22.0 × 19.8 m (20–24 × 18–22.5), with a smooth wall, an SI of 1.11 (1.05–1.25) and no oöcyst residuum or polar granule. Sporocysts are ovoidal, 12.6 × 9.5 m (11–14.5 × 7.5–11), have an SI of 1.32 (1.10–1.60), a small central residuum often hidden by sporozoites, and no Stieda or sub-Stieda body. –I. gonatodi n. sp., from –Gonatodes albogularis fuscus, has oval to round oöcysts 23.0 × 21.8 m (20–25 × 19–24), an SI of 1.06 (1.00–1.16) and a variably present oöcyst residuum. Sporocysts, 12.0 × 9.6 m (10–14 × 9–11), with an SI of 1.25 (1.10–1.44), have no Stieda or sub-Stieda body. A sporocyst residuum comprised of loosely adherent or scattered, irregular granules is present. Panamanian –Gonatodes albogularis fuscus are also parasitised by –I. albogularis. 相似文献
10.
Three new species of Isospora Schneider, 1881 are described from agamid lizards, Isospora cannoni n. sp. in Diporiphora australis from northern Queensland, Australia, I. choochotei n. sp. in Calotes mystaceus from northern Thailand, and I. deserti n. sp. in Agama pallida from Israel. I. cannoni oöcysts are subspherical, 20–25 × 22.5–27.5 m with two ovoid sporocysts, 14–15.5 × 10–11.5 m. I. choochotei oöcysts are spherical to subspherical, 24–32 × 28–32.5 m with two ovoid sporocysts, 11 × 15.5–18 m. I. deserti oöcysts are spherical, 25–28 m in diameter with two ovoid sporocysts, 10–11 × 14–17.5 m. All species had sporocysts with Stieda bodies and underwent endogenous development in the nucleus of the host gut epithelial cells. At completion of merogony and gamogony, the host nucleus was reduced to a thin envelope. The significance of endogenous stage characteristics in Isospora taxonomy is discussed. 相似文献
11.
Julius Lukeš 《Systematic parasitology》1995,30(1):27-30
Oöcysts of Goussia chalupskyi n. sp. are described from the faeces of the chub Leuciscus cephalus (Cyprinidae) from Southern Bohemia, Czech Republic. The oöcysts are spherical, 11.0 (10.5–11.5) m in diameter. The sporocysts are broadly oval to subspherical, 7.7 (7.0–8.5) × 5.7 (5.0–6.5) m, with a sporocyst residuum composed of 2–4 granules. Merogonial and gamogonial stages were found in the posterior part of the intestine. 相似文献
12.
Summary Two new species of Isospora (Apicomplexa: Eimeriidae) are described from the faeces of passeriform birds of South America. I. cyanocoracis n. sp. is described from Cyanocorax chrysops (Passeriformes: Corvidae) and I. paroariae n. sp. from Paroaria coronata (Passeriformes: Emberizidae). I. cyanocoracis oocysts are spherical or subspherical, 28.7×26.8 m (25.0–30.5×24.5–29.0), with bi-layered wall about 2.0 m thick. Micropyle and oocyst residuum are absent; large polar granule present. Sporocysts are ovoid, 19.3×11.4 m (17.0–21.0×10.5–12.2), with smooth, single-layered wall about 0.8 m thick. Stieda and substiedal bodies and sporocyst residuum are present. Sporozoites 12.2×4.2 m (10.5–15.0×3.5–4.5), possess spherical anterior and posterior refractile bodies. I. paroariae oocysts are spherical or subspherical, 22.3×21.4 m (19.5–25.5×18.5–24.0), and have bi-layered wall about 1.8 m thick. Micropyle, polar granule, and oocyst residuum are absent. Sporocysts ovoid, 15.2×10.0 m (14.0–16.5×8.0–11.5), possess smooth, single-layered wall about 0.7 m thick. Stieda and substiedal bodies and sporocyst residuum are present. Sporozoites elongate, 11.3×3.4 m (10.0–13.5×3.2–4.0), have single, large, posterior refractile body. ac]19840712 相似文献
13.
Coprological examination of 19 Madagascan chameleons of the genera Furcifer and Brookesia revealed the presence of five new coccidian species. Isospora brygooi n. sp. from Furcifer pardalis has spherical to subspherical oöcysts with a slightly pitted wall, 20.7 (17–24.5) × 19.3 (16–23) m and broadly ellipsoidal sporocysts, 12.2 (11.5–13) × 8.1 (8–8.5) m, with Stieda and substieda bodies. Oöcysts of Eimeria glawi n. sp. from Furcifer pardalis are cylindrical to ellipsoidal, 27.7 (26–29.5) × 18.4 (17–19) m, with ellipsoidal sporocysts, 7.3 (6.5–8) × 5.2 (5–5.5) m. E. vencesi n. sp. described from F. pardalis has spherical to subspherical oöcysts, 14.3 (13–15.5) × 13.0 (12–13) m, with small granules, one to three globular polar granules and ellipsoidal sporocysts, 7.3 (6.5–8) × 5.2 (5–5.5) m. E. worthi n. sp., described from Furcifer oustaleti has spherical oöcysts, 17.9 (17.5–19.0) × 15.0 (14.5–16.0) m without a polar granule and ellipsoidal to cylindroidal sporocysts, 8.2 (7.0–9.5) × 5.8 (5.0–6.5) m. Oöcysts of E. brookesiae n. sp. from Brookesia decaryi are cylindrical, 25.6 (23–27) × 15.0 (13–16) m with ellipsoidal sporocysts, 10.1 (9–11) × 6.9 (6–7) m. Endogenous development of E. vencesi is confined to the intestine, while that of E. glawi occurs in the gall-bladder. 相似文献
14.
Three new species of coccidian were recovered from the intestinal contents and faeces of lizards in Namibia, southwest Africa. Oöcysts of Eimeria barnardi n. sp. are described from Rhoptropus barnardi (Gekkonidae) and are ellipsoidal, 24.3 × 19.9 (21–26.5 × 16–22) m; shape index (length/width) 1.22 (1.12–1.30). A micropyle and oöcyst residuum are absent but a fragmented polar granule is present. Sporocysts are subspherical, 9.2 × 8.3 (8–11 × 7.5–9) m; shape index 1.11 (1.02–1.27). Oöcysts of Eimeria pachybibroni n. sp. were found in Pachydactylus bibroni (Gekkonidae) and are ellipsoidal, 26.2 × 18.2 (21.5–28 × 16–19) m; shape index 1.44 (1.30–1.52). A micropyle and oöcyst residuum are absent but a polar granule is present. Sporocysts are subspherical, 8.9 × 8.0 (8–9.5 × 7–8.5) m; shape index 1.12 (1.03–1.20). Oöcysts of Isospora spilogaster n. sp. are reported from Mabuya spilogaster (Scincidae) and are subspherical, 27.4 × 26.0 (21.5–35 × 21–35) m; shape index 1.05 (1.00–1.13). Micropyle, oöcyst residuum and polar granules are absent. Sporocysts are ellipsoidal, 13.2 × 9.7 (10.5–15 × 9–11) m; shape index 1.36 (1.08–1.50). 相似文献
15.
Four new species of Isospora are described from Australian geckoes. Isospora gehyrae n. sp. from Gehyra cf. variegata in South Australia have 18.5-22.5×17.5–20.0 m oöcysts with 10.0-12.5×7.5-9.0 m sporocysts; endogenous stages develop in the host cell cytoplasm. Of the two species found in Heteronotia binoei from northern Queensland, Isospora cytoheteronotis n. sp., with oöcysts of 20.0-26.0×17.5-25.0 m and sporocysts of 10.0-13.5×7.5-11.5 m, undergoes endogenous development in its host cell cytoplasm, whereas I. nucleoheteronotis n. sp., with oöcysts of 17.5-22.5×17.5-21.5 m and sporocysts of 9.0-12.5×6.5-10.0 m, develops in the host cell nucleus. I. oedurae n. sp. from Oedura rhombifer in northern Queensland has oöcysts of 22.5-25.0×22.5-24.0 m and sporocysts of 12.5-14.0×7.5-11.5 m, and undergoes endogenous development in its host cell nuclei. 相似文献
16.
Coccidian oöcysts recovered from the faeces of eastern ringneck snakes, Diadophis punctatus arnyi, from Kansas, USA were found to represent a previously unreported eimerian. Oöcysts of Eimeria arnyi n. sp. are subspherical, 16.9×15.1 (15–18.5×13.5–16) m, with a thin, single-layered wall and a shape-index (length/width) of 1.1 (1.1–1.3). A micropyle and öocyst residuum are absent but a large polar granule is present. The sporocysts are elongate, 13.2×6.9 (12–14.5×6.5–7) m, with Stieda and substieda bodies and a shape-index of 1.9 (1.7–2.3). Each sporozoite contains one to two anterior and a single posterior refractile bodies. Sporulation was exogenous and complete within four days at 23°C. 相似文献
17.
Two new species of Isospora are described from skinks, I. cryptoblephari n. sp. in Cryptoblepharus virgatus and I. delmae n. sp. in Delma nasuta, both collected in Australia. I. cryptoblephari oöcysts are ellipsoidal to subspherical, 17.5–22.5 × 25.0–30.0 m with two ovoid sporocysts, 9.0–10.0 × 12.5–14.0 m. I. delmae oöcysts are spherical to subspherical, 16.5–19.0 × 16.5–20.0 m with two ovoid sporocysts, 5.0–6.5 × 9.0–12.5 m. These species of Isospora had two sporocysts, each containing four sporozoites and a characteristic Stieda body. A study of endogenous stages in the host's intestine revealed that I. cryptoblephari develops in the nucleus and I. delmae in the cytoplasm of the host's gut epithelial cell. In the former, both merogony and gamogony occurred in the nucleus. 相似文献
18.
Modrý David Koudela Břetislav Al-Oran Ratib M. Amr Zuhair S. Doležel David 《Systematic parasitology》1998,39(1):45-48
Faecal samples from 17 fan-footed geckoes Ptyodactylus puiseuxi Boutan were examined for coccidian parasites. Five geckoes (29%) were found to be passing oöcysts of the genus Isospora Schneider. Comparison with other members of the genus Isospora indicates that the coccidian found represents a new species. Sporulated oöcysts of I. ptyodactyli n. sp. are spherical or subspherical, 22.1 (19.0–24.0) × 21.2 (18.0–23.0) µm, with a shape-index (length/width) of 1.04; and a smooth and bilayered oöcyst wall, 1.0–1.5 µm thick. A micropyle, oöcyst residuum and polar granule are absent. The sporocysts are ellipsoidal, 12.2 (11.0–14.0) × 8.0 (7.5–9.0) µm, with a shape index of 1.5 (1.4–1.9). Stieda and substieda bodies are present, the Stieda body being knob-like and the substieda body spherical to subspherical. A sporocyst residuum is present and composed of numerous granules of different size scattered among the sporozoites. The sporozoites are vermiform, with a slightly granulated surface appearance, and are arranged head to tail within the sporocyst. Most oöcysts have still to sporulate when excreted; sporulation was completed within 12 h at 25 °C. Endogenous development occurs inside the nuclei of enterocytes in the small intestine. 相似文献
19.
Landers SC 《Systematic parasitology》2001,48(1):55-59
Pterospora floridiensis, a new species of acephaline gregarine from the body cavity of the bamboo worm Axiothella mucosa (Polychaeta: Maldanidae), is described. The gamont stage is distinctive and possesses a central cytoplasmic mass and two elongate trunks that bifurcate repeatedly and comprise approximately 60% of the total cell length. The gamont averages 198 (50–545) × 71 (25–180) m (N= 45, 43) from the tip of the trunks to the anterior (the junctional site with the other gamont in syzygy). Gametocysts average 402 (297–545) × 304 (149–495) m (N= 37). The oöcysts measure 22.5 (20.5–23.5) × 8.3 (7.0–10.0) m (N= 30) and possess an internal capsule (average length = 13.9 m, N= 30) containing the sporozoites and aliform wings on the epispore. 相似文献
20.
Isospora geospizae n. sp. is described from the faeces of the small ground finch Geospiza fuliginosa and the medium ground finch Geospiza fortis from Santa Cruz Island in the Galapagos archipelago. I. geospizae oocysts are spherical to subspherical, with a one-layered, smooth, colourless wall, 15.5×14.5 (13–17×12–17) m with a large polar body and no micropyle or residuum. Sporocysts are ovoid, 10×7.5 (10–12×6–9) m with small Stieda and subtieda bodies and a smoothly contoured, but irregular-shaped residuum containing coarse, non-uniform granules. Sporozoites are sausage-shaped with large refractile bodies at each end and randomly arranged in the sporocysts. Three of 34 (8.8%) G. fuliginosa and one of nine (11.1%) G. fortis were infected with I. geospizae. 相似文献