Morphology and molecular phylogeny of Haplozoon praxillellae n. sp. (Dinoflagellata): A novel intestinal parasite of the maldanid polychaete Praxillella pacifica Berkeley

Rueckert, Sonja; Leander, Brian S.

doi:10.1016/j.ejop.2008.04.004

Nematode eel parasite found inside acanthocephalan cysts - a "Trojan horse" strategy? (2014)
Journal Article
Emde, S., Rueckert, S., Kochmann, J., Knopf, K., Sures, B., & Klimpel, S. (2014). Nematode eel parasite found inside acanthocephalan cysts - a "Trojan horse" strategy?. Parasites & vectors, 7(1), 504. https://doi.org/10.1186/s13071-014-0504-8

Background The invasive eel parasite Anguillicoloides crassus (syn. Anguillicola crassus) is considered one of the major causes for the decline of the European eel (Anguilla anguilla) panmictic population. It impairs the swim bladder function and... Read More about Nematode eel parasite found inside acanthocephalan cysts - a "Trojan horse" strategy?.

Fusiforma themisticola n. gen., n. sp., a New Genus and Species of Apostome Ciliate Infecting the Hyperiid Amphipod Themisto libellula in the Canadian Beaufort Sea (Arctic Ocean), and Establishment of the Pseudocolliniidae (Ciliophora, Apostomatia) (2013)
Journal Article
Chantangsi, C., Lynn, D. H., Rueckert, S., Prokopowicz, A. J., Panha, S., & Leander, B. S. (2013). Fusiforma themisticola n. gen., n. sp., a New Genus and Species of Apostome Ciliate Infecting the Hyperiid Amphipod Themisto libellula in the Canadian Beauf

A novel parasitic ciliate Fusiforma themisticola n. gen., n. sp. was discovered infecting 4.4% of the hyperiid amphipod Themisto libellula. Ciliates were isolated from a formaldehyde-fixed whole amphipod and the DNA was extracted for amplification of... Read More about Fusiforma themisticola n. gen., n. sp., a New Genus and Species of Apostome Ciliate Infecting the Hyperiid Amphipod Themisto libellula in the Canadian Beaufort Sea (Arctic Ocean), and Establishment of the Pseudocolliniidae (Ciliophora, Apostomatia).

Parasites of wild rabbits (Oryctolagus cuniculus) from an urban area in Germany, in relation to worldwide results (2013)
Journal Article
Frank, R., Kuhn, T., Mehlhorn, H., Rueckert, S., Pham, D., & Klimpel, S. (2013). Parasites of wild rabbits (Oryctolagus cuniculus) from an urban area in Germany, in relation to worldwide results. Parasitology Research, 112(12), 4255-4266. https://doi.org/

The European rabbit (Oryctolagus cuniculus) belongs to the most invasive and successful mammalian species, which is distributed nearly worldwide. In Europe, they inhabit broad parts of the mainland and subsequently reached several European islands vi... Read More about Parasites of wild rabbits (Oryctolagus cuniculus) from an urban area in Germany, in relation to worldwide results.

Discovery of a Diverse Clade of Gregarine Apicomplexans (Apicomplexa: Eugregarinorida) from Pacific Eunicid and Onuphid Polychaetes, Including Descriptions ofParalecudinan. gen.,Trichotokara japonican. sp., andT. eunicaen. sp. (2013)
Journal Article
Rueckert, S., Wakeman, K. C., & Leander, B. S. (2013). Discovery of a Diverse Clade of Gregarine Apicomplexans (Apicomplexa: Eugregarinorida) from Pacific Eunicid and Onuphid Polychaetes, Including Descriptions ofParalecudinan. gen.,Trichotokara japonican

Marine gregarines are poorly understood apicomplexan parasites with large trophozoites that inhabit the body cavities of marine invertebrates. Two novel species of gregarines were discovered in polychaete hosts collected in Canada and Japan. The trop... Read More about Discovery of a Diverse Clade of Gregarine Apicomplexans (Apicomplexa: Eugregarinorida) from Pacific Eunicid and Onuphid Polychaetes, Including Descriptions ofParalecudinan. gen.,Trichotokara japonican. sp., andT. eunicaen. sp..

Invasive Ponto-Caspian Amphipods and Fish Increase the Distribution Range of the Acanthocephalan Pomphorhynchus tereticollis in the River Rhine (2012)
Journal Article
Emde, S., Rueckert, S., Palm, H. W., & Klimpel, S. (2012). Invasive Ponto-Caspian Amphipods and Fish Increase the Distribution Range of the Acanthocephalan Pomphorhynchus tereticollis in the River Rhine. PLOS ONE, 7(12), Article e53218. https://doi.org/10

Non-indigenous species that become invasive are one of the main drivers of biodiversity loss worldwide. In various freshwater systems in Europe, populations of native amphipods and fish are progressively displaced by highly adaptive non-indigenous sp... Read More about Invasive Ponto-Caspian Amphipods and Fish Increase the Distribution Range of the Acanthocephalan Pomphorhynchus tereticollis in the River Rhine.

Large-scale infection of the ascidian Ciona intestinalis by the gregarine Lankesteria ascidiae in an inland culture system (2012)
Journal Article
Mita, K., Kawai, N., Rueckert, S., & Sasakura, Y. (2012). Large-scale infection of the ascidian Ciona intestinalis by the gregarine Lankesteria ascidiae in an inland culture system. Diseases of Aquatic Organisms, 101(3), 185-195. https://doi.org/10.3354/d

An important way to keep transgenic and mutant lines of the ascidian Ciona intestinalis, a model system for e.g. genetic functions, in laboratories is via culturing systems. Here we report a disease of C. intestinalis observed in an inland culturing... Read More about Large-scale infection of the ascidian Ciona intestinalis by the gregarine Lankesteria ascidiae in an inland culture system.

The Revised Classification of Eukaryotes (2012)
Journal Article
Adl, S. M., Simpson, A. G. B., Lane, C. E., Lukeš, J., Bass, D., Bowser, S. S., …Spiegel, F. W. (2012). The Revised Classification of Eukaryotes. Journal of Eukaryotic Microbiology, 59(5), 429-514. https://doi.org/10.1111/j.1550-7408.2012.00644.x

This revision of the classification of eukaryotes, which updates that of Adl et al. [J. Eukaryot. Microbiol. 52 (2005) 399], retains an emphasis on the protists and incorporates changes since 2005 that have resolved nodes and branches in phylogenetic... Read More about The Revised Classification of Eukaryotes.

Species Boundaries in Gregarine Apicomplexan Parasites: A Case Study-Comparison of Morphometric and Molecular Variability in Lecudina cf. tuzetae (Eugregarinorida, Lecudinidae): SPECIES BOUNDARIES IN GREGARINES (2011)
Journal Article
Rueckert, S., Villette, P. M. E. H., & Leander, B. S. (2011). Species Boundaries in Gregarine Apicomplexan Parasites: A Case Study-Comparison of Morphometric and Molecular Variability in Lecudina cf. tuzetae (Eugregarinorida, Lecudinidae): SPECIES BOUNDAR

Trophozoites of gregarine apicomplexans are large feeding cells with diverse morphologies that have played a prominent role in gregarine systematics. The range of variability in trophozoite shapes and sizes can be very high even within a single speci... Read More about Species Boundaries in Gregarine Apicomplexan Parasites: A Case Study-Comparison of Morphometric and Molecular Variability in Lecudina cf. tuzetae (Eugregarinorida, Lecudinidae): SPECIES BOUNDARIES IN GREGARINES.

Identification of a Divergent Environmental DNA Sequence Clade Using the Phylogeny of Gregarine Parasites (Apicomplexa) from Crustacean Hosts (2011)
Journal Article
Rueckert, S., Simdyanov, T. G., Aleoshin, V. V., & Leander, B. S. (2011). Identification of a Divergent Environmental DNA Sequence Clade Using the Phylogeny of Gregarine Parasites (Apicomplexa) from Crustacean Hosts. PLOS ONE, 6(3), Article e18163. https:

Background Environmental SSU rDNA surveys have significantly improved our understanding of microeukaryotic diversity. Many of the sequences acquired using this approach are closely related to lineages previously characterized at both morphologica... Read More about Identification of a Divergent Environmental DNA Sequence Clade Using the Phylogeny of Gregarine Parasites (Apicomplexa) from Crustacean Hosts.

Parasite diversity as an indicator of environmental change? An example from tropical grouper (Epinephelus fuscoguttatus) mariculture in Indonesia (2011)
Journal Article
Palm, H. W., Kleinertz, S., & Rueckert, S. (2011). Parasite diversity as an indicator of environmental change? An example from tropical grouper (Epinephelus fuscoguttatus) mariculture in Indonesia. Parasitology, 138(13), 1793-1803. https://doi.org/10.1017

Fish parasites are used to monitor long-term change in finfish grouper mariculture in Indonesia. A total of 210 Epinephelus fuscoguttatus were sampled in six consecutive years between 2003/04 and 2008/09 and examined for parasites. The fish were obta... Read More about Parasite diversity as an indicator of environmental change? An example from tropical grouper (Epinephelus fuscoguttatus) mariculture in Indonesia.

Gastrointestinal and ectoparasites from urban stray dogs in Fortaleza (Brazil): high infection risk for humans? (2010)
Journal Article
Klimpel, S., Heukelbach, J., Pothmann, D., & Rueckert, S. (2010). Gastrointestinal and ectoparasites from urban stray dogs in Fortaleza (Brazil): high infection risk for humans?. Parasitology Research, 107, 713-719. https://doi.org/10.1007/s00436-010-1926-7

Dogs are important definite or reservoir hosts for zoonotic parasites. However, only few studies on the prevalence of intestinal parasites in urban areas in Brazil are available. We performed a comprehensive study on parasites of stray dogs in a Braz... Read More about Gastrointestinal and ectoparasites from urban stray dogs in Fortaleza (Brazil): high infection risk for humans?.

Description of Trichotokara nothriae n. gen. et sp. (Apicomplexa, Lecudinidae) – An intestinal gregarine of Nothria conchylega (Polychaeta, Onuphidae) (2010)
Journal Article
Rueckert, S., & Leander, B. S. (2010). Description of Trichotokara nothriae n. gen. et sp. (Apicomplexa, Lecudinidae) – An intestinal gregarine of Nothria conchylega (Polychaeta, Onuphidae). Journal of Invertebrate Pathology, 104, 172-179. https://doi.org/10.1016/j.jip.2010.03.005

The trophozoites of a novel gregarine apicomplexan, Trichotokara nothriae n. gen. et sp., were isolated and characterized from the intestines of the onuphid tubeworm Nothria conchylega (Polychaeta), collected at 20 m depth from the North-eastern Paci... Read More about Description of Trichotokara nothriae n. gen. et sp. (Apicomplexa, Lecudinidae) – An intestinal gregarine of Nothria conchylega (Polychaeta, Onuphidae).

Parasites of cultured and wild brown-marbled grouper Epinephelus fuscoguttatus (Forsskal, 1775) in Lampung Bay, Indonesia. (2010)
Journal Article
Rueckert, S., Klimpel, S., & Palm, H. W. (2010). Parasites of cultured and wild brown-marbled grouper Epinephelus fuscoguttatus (Forsskal, 1775) in Lampung Bay, Indonesia. Aquaculture Research, 41, 1158-1169. https://doi.org/10.1111/j.1365-2109.2009.02403.x

A total of 210 Epinephelus fuscoguttatus (brown-marbled grouper) was examined for parasites. During three consecutive seasons (two rainy and one dry season from 2002 to 2004), 35 specimens each taken from floating net cages of the National Sea Farmin... Read More about Parasites of cultured and wild brown-marbled grouper Epinephelus fuscoguttatus (Forsskal, 1775) in Lampung Bay, Indonesia..

Parasitic infection of the hyperiid amphipod Themisto libellula in the Canadian Beaufort Sea (Arctic Ocean), with a description of Ganymedes themistos sp. n. (Apicomplexa, Eugregarinorida) (2010)
Journal Article
Prokopowicz, A. J., Rueckert, S., Leander, B. S., Michaud, J., & Fortier, L. (2010). Parasitic infection of the hyperiid amphipod Themisto libellula in the Canadian Beaufort Sea (Arctic Ocean), with a description of Ganymedes themistos sp. n. (Apicomplexa

Two parasites were found in the hyperiid amphipod Themisto libellula sampled with nets and collected by sediment traps over the annual cycle in the Canadian Beaufort Sea. The trophozoites of the newly described gregarine Ganymedes themistos sp. n. in... Read More about Parasitic infection of the hyperiid amphipod Themisto libellula in the Canadian Beaufort Sea (Arctic Ocean), with a description of Ganymedes themistos sp. n. (Apicomplexa, Eugregarinorida).

Molecular systematics of marine gregarines (Apicomplexa) from North-eastern Pacific polychaetes and nemerteans, with descriptions of three novel species: Lecudina phyllochaetopteri sp. nov., Difficilina tubulani sp. nov. and Difficilina paranemertis sp. nov. (2009)
Journal Article
Chantangsi, C., Leander, B. S., & Rueckert, S. (2010). Molecular systematics of marine gregarines (Apicomplexa) from North-eastern Pacific polychaetes and nemerteans, with descriptions of three novel species: Lecudina phyllochaetopteri sp. nov., Difficili

Most eugregarine apicomplexans infecting the intestines of marine invertebrates have been described within the family Lecudinidae and the type genus Lecudina. The diversity of these parasites is vast and poorly understood and only a tiny number of sp... Read More about Molecular systematics of marine gregarines (Apicomplexa) from North-eastern Pacific polychaetes and nemerteans, with descriptions of three novel species: Lecudina phyllochaetopteri sp. nov., Difficilina tubulani sp. nov. and Difficilina paranemertis sp. nov..

Molecular Phylogeny and Surface Morphology of Marine Archigregarines (Apicomplexa),Selenidiumspp.,Filipodium phascolosomaen. sp., andPlatyproteumn. g. and comb. from North-Eastern Pacific Peanut Worms (Sipuncula) (2009)
Journal Article
Leander, B. S., & Rueckert, S. (2009). Molecular Phylogeny and Surface Morphology of Marine Archigregarines (Apicomplexa),Selenidiumspp.,Filipodium phascolosomaen. sp., andPlatyproteumn. g. and comb. from North-Eastern Pacific Peanut Worms (Sipuncula). Jo

The trophozoites of two novel archigregarines, Selenidium pisinnus n. sp. and Filipodium phascolosomae n. sp., were described from the sipunculid Phascolosoma agassizii. The trophozoites of S. pisinnus n. sp. were relatively small (64–100 μm long and... Read More about Molecular Phylogeny and Surface Morphology of Marine Archigregarines (Apicomplexa),Selenidiumspp.,Filipodium phascolosomaen. sp., andPlatyproteumn. g. and comb. from North-Eastern Pacific Peanut Worms (Sipuncula).

Phylogenetic position and description of Rhytidocystis cyamus sp. n. (Apicomplexa, Rhytidocystidae): a novel intestinal parasite of the north-eastern Pacific ‘stink worm’ (Polychaeta, Opheliidae, Travisia pupa) (2009)
Journal Article
Rueckert, S., & Leander, B. S. (2009). Phylogenetic position and description of Rhytidocystis cyamus sp. n. (Apicomplexa, Rhytidocystidae): a novel intestinal parasite of the north-eastern Pacific ‘stink worm’ (Polychaeta, Opheliidae, Travisia pupa).

A new Rhytidocystis species is described from the north-eastern Pacific Coast. Trophozoites of R. cyamus sp. n. were isolated from the intestines of the opheliid polychaete Travisia pupa, collected from mud dredged at a depth of 80 m. The trophozoite... Read More about Phylogenetic position and description of Rhytidocystis cyamus sp. n. (Apicomplexa, Rhytidocystidae): a novel intestinal parasite of the north-eastern Pacific ‘stink worm’ (Polychaeta, Opheliidae, Travisia pupa).

A new approach to visualize ecosystem health by using parasites (2009)
Journal Article
Palm, H. W., & Rückert, S. (2009). A new approach to visualize ecosystem health by using parasites. Parasitology Research, 105(2), 539-553. https://doi.org/10.1007/s00436-009-1423-z

A new approach is chosen to visualize ecosystem health by using parasite bioindicators in Segara Anakan Lagoon, a brackish water ecosystem at the southern Java coast, Indonesia. Three fish species (Mugil cephalus, Scatophagus argus, Epinephelus coioi... Read More about A new approach to visualize ecosystem health by using parasites.

Metazoan fish parasites of Segara Anakan Lagoon, Indonesia, and their potential use as biological indicators (2008)
Journal Article
Palm, H. W., Rueckert, S., Hagen, W., & Yuniar, A. T. (2009). Metazoan fish parasites of Segara Anakan Lagoon, Indonesia, and their potential use as biological indicators. Regional Environmental Change, 9(4), 315-328. https://doi.org/10.1007/s10113-008-00

The present study reports metazoan fish parasites from Segara Anakan, a brackish water lagoon located at the southern Java coast, Indonesia. Seven economically important marine fish species (Mugil cephalus, Siganus javus, Scatophagus argus, Caranx se... Read More about Metazoan fish parasites of Segara Anakan Lagoon, Indonesia, and their potential use as biological indicators.

Morphology and molecular phylogeny of Haplozoon praxillellae n. sp. (Dinoflagellata): A novel intestinal parasite of the maldanid polychaete Praxillella pacifica Berkeley (2008)
Journal Article
Rueckert, S., & Leander, B. S. (2008). Morphology and molecular phylogeny of Haplozoon praxillellae n. sp. (Dinoflagellata): A novel intestinal parasite of the maldanid polychaete Praxillella pacifica Berkeley. European Journal of Protistology, 44(4), 299

The genus Haplozoon comprises a group of endoparasites infecting the intestines of polychaete worms. Comparative studies using light microscopy, scanning and transmission electron microscopy, and small subunit rDNA have shown that these organisms are... Read More about Morphology and molecular phylogeny of Haplozoon praxillellae n. sp. (Dinoflagellata): A novel intestinal parasite of the maldanid polychaete Praxillella pacifica Berkeley.

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