Folia Parasitologica, vol. 59 (2012), issue 3

Age-related susceptibility and resistance to nonlethal Plasmodium yoelii infection in C57BL/6 mice

Ying Shan, Jun Liu, Yong-Jun Jiang, Hong Shang, Dong Jiang, Ya-Ming Cao

Folia Parasitologica 59[3] 153-161 (2012) | DOI: 10.14411/fp.2012.021

In cases of human malaria, children suffer very high rates of morbidity and mortality. To analyze the mechanisms involved in age-dependent protection against malaria, we investigated the characterization of immune responses to Plasmodium yoelii 17XNL (P.y 17XNL) in young (3 weeks) and middle-aged (8 months) C57BL/6 mice. In this study, we found that 100% of young mice succumbed to P.y 17XNL infection with higher parasitemia, while middle-aged mice were able to clear blood parasites and no mortality was observed. These observations suggested that the young C57BL/6 mice were susceptible to P.y 17XNL infection, whereas the middle-aged mice were...

Pomphorhynchidae and Quadrigyridae (Acanthocephala), including a new genus and species (Pallisentinae), from freshwater fishes, Cobitidae and Cyprinodontidae, in Turkey

Lesley R. Smales, Ali Aydogdu, Yilmaz Emre

Folia Parasitologica 59[3] 162-166 (2012) | DOI: 10.14411/fp.2012.022

During a survey of freshwater fishes from Turkey two species of Acanthocephala, one of them new, were found. Pomphorhynchus tereticollis (Pomphorhynchidae) is reported at 24% prevalence in 37 Cobitis bilseli (Cobitidae) from Lake Beysehir, Konya, for the first time. The eoacanthoacaphalan Triaspiron aphanii gen. n. et sp. n. (Quadrigyridae), at a prevalence of 90%, is described from 29 Aphanius mento (Cyprinodontidae), from Kirkgöz Springs, Antalya. The new genus most closely resembles Raosentis Datta, 1947, both having a small spindle shaped trunk, and Acanthogyrus Thapar, 1927, both having a proboscis armature...

Four additional Hepatozoon species (Apicomplexa: Hepatozoidae) from north Florida ratsnakes, genus Pantherophis

Sam R. Telford, Jr., Paul E. Moler, Jerry F. Butler

Folia Parasitologica 59[3] 167-172 (2012) | DOI: 10.14411/fp.2012.023

Records from a colubrid host are reported for Hepatozoon horridus, described originally from a viperid snake. Hepatozoon horridus in Pantherophis guttatus (Colubridae) has gamonts 14-18.0 by 4.0-5.5 µm, with length by width (LW) 60-99 µm2, and L/W ratio 2.5-3.9. Spherical to elongate, usually ovoid oocysts with L/W ratio 1.0-3.7 contain 16-160 spherical to usually ovoid sporocysts 15-31 by 14-26 µm, with L/W ratio 1.0-1.4, that contain 5-24 sporozoites. Two additional Hepatozoon species are described from ratsnakes in north Florida. Hepatozoon quadrivittata n. sp. from Pantherophis obsoletus quadrivittatus...

Ultrastructure of the spermatozoon of the digenean Lecithocladium excisum (Rudolphi, 1819) (Hemiuroidea: Hemiuridae), a parasite of marine teleosts in Senegal

Papa Ibnou Ndiaye, Papa Mbagnick Diagne, Aminata Sène, Abdoulaye J.S. Bakhoum, Jordi Miquel

Folia Parasitologica 59[3] 173-178 (2012) | DOI: 10.14411/fp.2012.024

The present study describes the ultrastructure of the mature spermatozoon of Lecithocladium excisum (Rudolphi, 1819) (Digenea: Hemiuroidea: Hemiuridae) from the stomach of the marine teleost Scomber japonicus Houttuyn (Scombridae) captured in the Atlantic Ocean, off Dakar (Senegal). The ultrastructural organization of the spermatozoon of L. excisum follows the general model described in most digeneans. It presents two axonemes of the 9+'1' pattern of the Trepaxonemata, nucleus, mitochondrion and parallel cortical microtubules, among other characters. However, some particularities of the spermatozoon of L. excisum are (i)...

Spermiogenesis and spermatozoon ultrastructure of Hunterella nodulosa (Cestoda: Caryophyllidea), a monozoic parasite of suckers (Catostomidae) in North America

Aneta Yoneva, Céline Levron, Mikulá¹ Oros, Martina Orosová, Tomá¹ Scholz

Folia Parasitologica 59[3] 179-186 (2012) | DOI: 10.14411/fp.2012.025

Spermiogenesis and ultrastructure of mature spermatozoon of the caryophyllidean cestode Hunterella nodulosa, a parasite of suckers (Catostomidae), have been studied by transmission electron microscopy. This monozoic tapeworm is unique in its mode of attachment and represents the second North American species studied. The process of spermiogenesis of H. nodulosa follows the general pattern already described in other caryophyllideans. The most characteristic feature is the presence of a slight rotation of the flagellar bud, which seems to be a typical character of spermiogenesis in this cestode group. The mature spermatozoon of H. nodulosa...

Crenosoma brasiliense sp. n. (Nematoda: Metastrongyloidea) parasitic in lesser grison, Galictis cuja (Molina, 1782) (Carnivora, Mustelidae) from Brazil, with a key to species of Crenosoma Molin, 1861

Fabiano M. Vieira, Luís C. Muniz-Pereira, Suelide Souza Lima, Antonio H.A. Moraes Neto, Pamela R. Gonçalves, José L. Luque

Folia Parasitologica 59[3] 187-194 (2012) | DOI: 10.14411/fp.2012.026

This study describes Crenosoma brasiliense (Nematoda, Metastrongyloidea), a new species parasitic in bronchi and bronchioles of Galictis cuja (Molina) (Carnivora, Mustelidae) from Brazil. This species differs from other 11 species of Crenosoma by having a cuticular projection at the distal end of the spicules, forming a prominent blade at the tip of the spicule, a vulval cuticular appendage with a triangular shape and prominent vulval lips. There are no previous records of species of Metastrongyloidea in G. cuja or species of Crenosoma in South America. Therefore, the new species represents the first host record and...

New data on the morphology of some Far-Eastern species of Rhabdochona (Nematoda: Rhabdochonidae), as revealed by SEM observation

Franti¹ek Moravec, Aleksei V. Ermolenko, Vladimir V. Besprozvannykh, Tomá¹ Scholz

Folia Parasitologica 59[3] 195-208 (2012) | DOI: 10.14411/fp.2012.027

Specimens of the nematode genus Rhabdochona Railliet, 1916 (Rhabdochonidae) were collected during helminthological examination of four species of cyprinid fishes in two rivers of the Amur River basin in the Russian Far East (Primorsky Region) in June 2011. Detailed light microscopical (LM) and scanning electron microscopical (SEM) examinations (the latter used for the first time for the reported nematode species) of the available material revealed the presence of three inadequately described nominal species of this genus: R. (Rhabdochona) denudata (Dujardin, 1845) from the spotted steed Hemibarbus maculatus Bleeker...

Description of Rhabdochona (Globochona) rasborae sp. n. (Nematoda: Rhabdochonidae) from the freshwater cyprinid fish Rasbora paviana Tirant in southern Thailand

Franti¹ek Moravec, Kanda Kamchoo

Folia Parasitologica 59[3] 209-215 (2012) | DOI: 10.14411/fp.2012.028

A new nematode species, Rhabdochona (Globochona) rasborae sp. n. (Rhabdochonidae), is described from the intestine of the freshwater cyprinid fish (sidestripe rasbora) Rasbora paviana Tirant in the Bangbaimai Subdistrict, Muang District, Surat Thani Province, southern Thailand. It differs from other representatives of the subgenus Globochona Moravec, 1972 which possess eggs provided with lateral swellings in having a spinose formation at the tail tip of both sexes and in some other morphological features, such as the body length of gravid female (8.6-23.7 mm), presence of two-three swellings on the egg, eight anterior...

A redescription of Pseudocharopinus pteromylaei Raibaut et Essafi, 1979 (Siphonostomatoida: Lernaeopodidae) collected from the South African east coast

Susan M. Dippenaar

Folia Parasitologica 59[3] 216-220 (2012) | DOI: 10.14411/fp.2012.029

Pseudocharopinus Kabata, 1964 is one of the 48 genera comprising the Lernaeopodidae (Copepoda, Siphonostomatoida). Currently there are 11 accepted species contained in Pseudocharopinus. Pseudocharopinus pteromylaei Raibaut et Essafi, 1979 infects the spiracles and gill filaments of Pteromylaeus bovinus (Geoffroy St. Hilaire) and is most similar in general appearance to P. pteroplateae (Yamaguti et Yamasu, 1959) from which it clearly differs in the size and dimensions of the dorsal shield and the posterior processes. Additional features of the antenna and the maxilliped of P. pteromylaei, not previously illustrated,...

A new species of the rare endoparasitic copepod Entobius (Copepoda: Entobiidae) from Mexico with a key to the species of the genus

Eduardo Suárez-Morales, Luis F. Carrera-Parra

Folia Parasitologica 59[3] 221-228 (2012) | DOI: 10.14411/fp.2012.030

In a study of the benthic polychaete fauna of the southern Gulf of Mexico and the Caribbean Sea, several specimens of the terebellid polychaete Scionides reticulata (Ehlers) were found to host endoparasitic copepods that represent an undescribed species of the rare cyclopoid genus Entobius Dogiel, 1948. The new species, E. scionides sp. n., can be distinguished from its congeners by a combination of characters including a genital region without constrictions, three-segmented antennules, a reduced antenna with a blunt terminal process, reduced ornamentation of endopods of legs 1-4 and its relatively small size (2.3-2.7 mm). It is...

New genus and three new species of quill mites (Acari: Syringophilidae: Picobiinae) parasitising puffbirds (Aves: Piciformes)

Maciej Skoracki, Katarzyna Scibek, Bozena Sikora

Folia Parasitologica 59[3] 229-236 (2012) | DOI: 10.14411/fp.2012.031

Three new species, belonging to the newly proposed genus Pseudopicobia gen. n., inhabiting body quill feathers of puffbirds (Piciformes: Bucconidae), are described: P. nonnula sp. n. from Nonnula frontalis (Sclater) in Colombia, P. malacoptila sp. n. from Malacoptila panamensis Lafresnaye in Colombia and P. hapaloptila sp. n. from Hapaloptila castanea (Verreaux) in Ecuador. The new genus differs from morphologically similar genus Picobia Heller, 1878 by the absence of the genital setae, absence of the genital lobes, solenidia φI represented by microsetae, and by the presence of setiform solenidia...

Multilocus genotyping of Giardia duodenalis isolates from red deer (Cervus elaphus) and roe deer (Capreolus capreolus) from Poland

Piotr Solarczyk, Anna C. Majewska, Bo¿ena Moskwa, W³adys³aw Cabaj, Miroslawa Dabert, Piotr Nowosad

Folia Parasitologica 59[3] 237-240 (2012) | DOI: 10.14411/fp.2012.032

A total of 181 faecal samples were collected from wild cervids in two regions of Poland. Giardia cysts were detected in one faecal specimen from red deer and in two samples from roe deer. Fragments of the β-giardin (bg) triose phosphate isomerase (tpi) and glutamate dehydrogenase (gdh) genes were successfully amplified from the Giardia isolate obtained from red deer, whereas only amplicons of bg and gdh were obtained from Giardia isolates derived from two roe deer. The result of genotyping and phylogenetic analysis showed that the G. duodenalis isolate from red deer belonged to sub-assemblage...