Folia Parasitologica, vol. 61 (2014), issue 4

Association between latent toxoplasmosis and major depression, generalised anxiety disorder and panic disorder in human adults

Shawn D. Gale, Bruce L. Brown, Andrew Berrett, Lance D. Erickson, Dawson W. Hedges

Folia Parasitologica 61[4] 285-292 (2014) | DOI: 10.14411/fp.2014.038

Latent infection with the apicomplexan Toxoplasma gondii (Nicolle et Manceaux, 1908) has been associated with schizophrenia, bipolar disorder and self-harm behaviour. However, the potential relationship between T. gondii immunoglobulin G antibody (IgG) seropositivity and generalised-anxiety disorder (GAD) and panic disorder (PD) has not been investigated. The associations between serum reactivity to T. gondii and major depressive disorder (MDD), GAD and PD were evaluated in a total sample of 1 846 adult participants between the ages of 20 and 39 years from the United States Center for Disease Control's National Health and Nutrition...

Redescription and molecular diagnosis of Hepatozoon theileri (Laveran, 1905) (Apicomplexa: Adeleorina: Hepatozoidae), infecting Amietia quecketti (Anura: Pyxicephalidae)

Edward C. Netherlands, Courtney A. Cook, Nico J. Smit, Louis H. du Preez

Folia Parasitologica 61[4] 293-300 (2014) | DOI: 10.14411/fp.2014.046

Blood smears prepared from the peripheral blood of 20 wild caught Amietia quecketti (Boulenger) from the North-West University Botanical Gardens, North West Province, South Africa, were examined for the presence of haemogregarines. A haemogregarine species comparative in morphology, host and geographical locality to that of Haemogregarina theileri Laveran, 1905 was detected. The original description of H. theileri was based solely on frog peripheral blood gamont stages. Later, further parasite stages, including trophozoites and merogonic liver stages, were recorded in a related Amietia sp. from equatorial Africa. This species...

Dicyemid fauna composition and infection patterns in relation to cephalopod host biology and ecology

Sarah R. Catalano, Ian D. Whittington, Stephen C. Donnellan, Bronwyn M. Gillanders

Folia Parasitologica 61[4] 301-310 (2014) | DOI: 10.14411/fp.2014.034

Ten Southern Hemisphere cephalopod species from six families collected from six localities in western, southern and eastern Australia were examined for dicyemid parasites. A total of 11 dicyemid species were recorded, with three cephalopod species uninfected, four infected by one dicyemid species and three infected by multiple dicyemid species. Dicyemid species prevalence ranged from 24-100%, with observed infection patterns explored due to host size, host life history properties, host geographical collection locality and inter-parasite species competition for attachment sites, space and nutrients. Left and right renal appendages were treated as separate...

Ultrastructure and localisation of late-sporogonic developmental stages of Sphaerospora ranae (Myxosporea: Sphaerosporidae)

Miloslav Jirků, Pavla Bartošová-Sojková

Folia Parasitologica 61[4] 311-321 (2014) | DOI: 10.14411/fp.2014.047

Data on external ultrastructure of myxospores and internal ultrastructure of advanced pseudoplasmodia and myxospores of topotypic samples of Sphaerospora ranae (Morelle, 1929) from Rana dalmatina Bonaparte are provided, together with in situ hybridisation results. In both frogs examined, the infection was restricted to renal tubules and corpuscles. The infection site restriction was confirmed by light and transmission electron microscopy, as well as by in situ hybridisation. In addition, large myxospore masses measuring up to 500 μm were detected in seminal vesicles. Only late-sporogonic stages, i.e. pseudoplasmodia harbouring...

A review of the currently recognised zoogonid cercariae, including the identification and emergence ecology of Cercaria capricornia XI (Digenea: Zoogonidae) from Nassarius olivaceus (Gastropoda: Nassariidae) in Central Queensland, Australia

Leonie J. Barnett, Terrence L. Miller, Thomas H. Cribb

Folia Parasitologica 61[4] 322-330 (2014) | DOI: 10.14411/fp.2014.039

In the present study, we review the known zoogonid cercariae, summarise their life-cycles and first intermediate host distributions, and present a new cercaria, Cercaria capricornia XI (Digenea: Zoogonidae), which was found in one of three nassariid gastropods, Nassarius olivaceus (Bruguière), surveyed in the intertidal zone in the Capricornia region of Central Queensland, Australia. Morphological data and molecular analysis of the ITS2 rDNA region support placement of this cercaria in the family Zoogonidae but do not allow any further resolution of its identity. There are now fifteen cercariae described as belonging to the Zoogonidae;...

Spathebothriidea: survey of species, scolex and egg morphology, and interrelationships of a non-segmented, relictual tapeworm group (Platyhelminthes: Cestoda)*

Roman Kuchta, Rebecca Pearson, Tomáš Scholz, Oleg Ditrich, Peter D. Olson

Folia Parasitologica 61[4] 331-346 (2014) | DOI: 10.14411/fp.2014.040

Tapeworms of the order Spathebothriidea Wardle et McLeod, 1952 (Cestoda) are reviewed. Molecular data made it possible to assess, for the first time, the phylogenetic relationships of all genera and to confirm the validity of Bothrimonus Duvernoy, 1842, Diplocotyle Krabbe, 1874 and Didymobothrium Nybelin, 1922. A survey of all species considered to be valid is provided together with new data on egg and scolex morphology and surface ultrastructure (i.e. microtriches). The peculiar morphology of the members of this group, which is today represented by five effectively monotypic genera whose host associations and geographical distribution...

Conflict between morphology and molecular data: a case of the genus Caryophyllaeus (Cestoda: Caryophyllidea), monozoic tapeworms of cyprinid fishes

Eva Bazsalovicsová, Ivica Králová-Hromadová, Jan Brabec, Vladimíra Hanzelová, Mikuláš Oros, Tomáš Scholz

Folia Parasitologica 61[4] 347-354 (2014) | DOI: 10.14411/fp.2014.035

Molecular analysis of an extensive specimen collection of morphologically distinct tapeworms of the genus Caryophyllaeus Gmelin, 1790 (Cestoda: Caryophyllidea), parasites of cyprinid fishes in the Palaearctic Region, brought evidence of host-related plasticity in critical morphological characters widely used for species circumscription and classification of these tapeworms. The results obtained here do not support the traditionally used morphological concept of species-defining characters of the order Caryophyllidea Carus, 1863, especially due to high morphological plasticity of the scolex and the anterior end of the body. Several morphotypes...

Three new gonad-infecting species of Philometra (Nematoda: Philometridae) parasitic in Lutjanus spp. (Lutjanidae) in the northern Gulf of Mexico off Florida, USA

František Moravec, Micah Bakenhaster, Emma J. Fajer-Ávila

Folia Parasitologica 61[4] 355-369 (2014) | DOI: 10.14411/fp.2014.041

Based on light and scanning electron microscopical studies, three new gonad-infecting species of Philometra Costa, 1845 (Nematoda: Philometridae) are described from marine fishes of the genus Lutjanus Bloch (Perciformes: Lutjanidae) in the northern Gulf of Mexico: P. longispicula sp. n. from the ovary of the northern red snapper L. campechanus (Poey) (type host) and silk snapper L. vivanus (Cuvier); P. latispicula sp. n. from the ovary and rarely testes of the grey snapper L. griseus (Linnaeus); and P. synagridis sp. n. (only males available) from the...

Transfer of the US-National Parasite Collection

Eric P. Hoberg, Anna J. Phillips

Folia Parasitologica 61[4] 370 (2014)

Effect of purified condensed tannins from pine bark on larval motility, egg hatching and larval development of Teladorsagia circumcincta and Trichostrongylus colubriformis (Nematoda: Trichostrongylidae)

Abdul-Lateef Molan

Folia Parasitologica 61[4] 371-376 (2014) | DOI: 10.14411/fp.2014.036

The effects of condensed tannins (CTs) extracted from pine bark on egg hatching, larval development and the viability of infective L3 larvae of Trichostrongylus colubriformis (Giles, 1892) and Teladorsagia circumcincta (Stadelmann, 1894) (syn. Ostertagia circumcincta) were evaluated using in vitro bioassays. Significant inhibitory effects of CTs were obtained on the viability of the infective larvae, egg hatching and larval development of both nematodes. In all bioassays, the larval stages of Te. circumcincta were significantly (P < 0.05) more susceptible to the inhibitory effects of CT than those of Tr. colubriformis....

Genetic and morphological evidence reveals the existence of a new family, genus and species of Echinorhynchida (Acanthocephala)

Paola E. Braicovich, Ana L. Lanfranchi, Marisa D. Farber, Adriana E. Marvaldi, José L. Luque, Juan T. Timi

Folia Parasitologica 61[4] 377-384 (2014) | DOI: 10.14411/fp.2014.044

Gymnorhadinorhynchus gen. n. is proposed to accommodate its type species, G. decapteri sp. n., a parasite of the marine fish Decapterus punctatus (Cuvier), caught from the coastal waters of Brazil. Gymnorhadinorhynchus decapteri sp. n. was morphologically most similar to species of two echinorhynchid families, the Rhadinorhynchidae and the Cavisomidae, particularly in the structure of the proboscis and the absence of somatic spines, respectively. This combination of morphological features made it difficult to assign our specimen to an extant family of the Acanthocephala. Therefore, in order to clarify the systematic placement of...