Paradoxium irvingi n.gen. n.sp. (Microsporidia) infecting the musculature of European pink shrimp Pandalus montagui.

  title={Paradoxium irvingi n.gen. n.sp. (Microsporidia) infecting the musculature of European pink shrimp Pandalus montagui.},
  author={Grant D. Stentiford and Stuart H. Ross and Rose C. Kerr and David Bass and Kelly S Bateman},
  journal={Journal of invertebrate pathology},
This paper utilises histological, ultrastructure and molecular phylogenetic data to describe a novel genus and species (Paradoxium irvingi n.gen., n.sp.) within clade 5 of the phylum Microsporidia. The parasite infects the musculature of the pink shrimp Pandalus montagui captured from United Kingdom waters. The novel microsporidium is morphologically and phylogenetically dissimilar to its nearest phylogenetic branch relative Thelohania butleri infecting the sister shrimp taxon Pandalus jordani… 
Evidence for trophic transfer of Inodosporus octospora and Ovipleistophora arlo n. sp. (Microsporidia) between crustacean and fish hosts
Abstract Within aquatic habitats, the hyper-abundant Order Crustacea appear to be the predominant host group for members of the Phylum Microsporidia. The musculature, a common site of infection,
Morphological and phylogenetic characterization of a new microsporidium, Triwangia gracilipes n. sp. from the freshwater shrimp Caridina gracilipes (Decapoda: Atyidae) in China.
A new microsporidian species was described from the freshwater shrimp Caridina gracilipes collected from Lake Luoma located in Northern Jiangsu province, East China, based on the morphological characters and ultrastructural features, as well as SSU rDNA-inferred phylogenetic relationships.
A novel dimorphic microsporidian Ameson iseebi sp. nov. infecting muscle of the Japanese spiny lobster, Panulirus japonicus, in western Japan.
Based on ultrastructural features, molecular phylogenetic data, host type and geographical differences among known species in these genera, the species found in whitened abdominal muscles of the Japanese spiny lobster is described as Ameson iseebi sp.
Isolation of the Parasite Enterocytospora artemiae From Chinese Grass Shrimp (Palaemonetes sinensis)—First Report in Asia
Based on this parasite’s life cycle characteristics, morphology, and small subunit ribosomal DNA sequence, the parasite described here is likely E. artemiae, which has previously only been described in Europe and North America, and is the first report of E.Artemiae both in Asia and economically important shrimp.
First case of hepatopancreatic necrosis disease in pond-reared Chinese mitten crab, Eriocheir sinensis, associated with microsporidian.
This study reported the first case of widespread infections of H. eriocheir associated with HPND found in the pond-reared Chinese mitten crab, E. sinensis, which is a very important economic crustacean species in China.
Invertebrate host responses to microsporidia infections.
The invertebrate host responses to various microsporidia infections are summarized, discussing numerous critical events in host responses including ubiquitin-mediated resistance, production of reactive oxygen species, melanization and innate immune pathways, and the increased basic metabolism and the accumulation of juvenile hormone in infected hosts.
Notes for genera: basal clades of Fungi (including Aphelidiomycota, Basidiobolomycota, Blastocladiomycota, Calcarisporiellomycota, Caulochytriomycota, Chytridiomycota, Entomophthoromycota, Glomeromycota, Kickxellomycota, Monoblepharomycota, Mortierellomycota, Mucoromycota, Neocallimastigomycota, Olp
611 genera in 153 families, 43 orders and 18 classes are provided with details of classification, synonyms, life modes, distribution, recent literature and genomic data.


Cucumispora ornata n. sp. (Fungi: Microsporidia) infecting invasive 'demon shrimp' (Dikerogammarus haemobaphes) in the United Kingdom.
A novel species of microsporidian parasite infecting 72.8% of invasive D. haemobaphes located in the River Trent, UK is described and named Cucumispora ornata, where 'ornata' refers to the external beading present on the mature spore stage of this organism.
Myospora metanephrops (n. g., n. sp.) from marine lobsters and a proposal for erection of a new order and family (Crustaceacida; Myosporidae) in the Class Marinosporidia (Phylum Microsporidia).
The first microsporidian parasite from nephropid lobsters captured from an important marine fishery situated off the south coast of New Zealand is described and the erection of a new genus in which the lobster parasite is the type species is proposed.
Areospora rohanae n.gen. n.sp. (Microsporidia; Areosporiidae n. fam.) elicits multi-nucleate giant-cell formation in southern king crab (Lithodes santolla).
The description of Areospora rohanae offers considerable insight into the pathogenesis of giant-cell forming Microsporidia in marine hosts, and may reflect emergence of a commercially-significant pathogen in the southern ocean Lithodes santolla fishery.
Cucumispora dikerogammari n. gen. (Fungi: Microsporidia) infecting the invasive amphipod Dikerogammarus villosus: a potential emerging disease in European rivers
Dikerogammarus villosus is an invasive amphipod that recently colonized the main rivers of Central and Western Europe and was initially described as Nosema dikerogammari, but phylogenetic analysis based on the complete sequence of SSU rDNA places the parasite outside the genus Nosema and it is therefore ascribed to a new genus Cucumispora.
Phylogenetic Distance of Thelohania butleri Johnston, Vernick, and Sprague, 1978 (Microsporidia; Thelohaniidae), a Parasite of the Smooth Pink Shrimp Pandalus jordani, from its Congeners Suggests Need for Major Revision of the Genus Thelohania Henneguy, 1892
Features such as host group and habitat, developmental morphology, and phylogeny suggest T. butleri may be a closer relative to T. giardi than any other Thelohania species represented by DNA data so far, and thus imply species from crayfish and ants may not belong in this genus.
Plastic parasites: extreme dimorphism creates a taxonomic conundrum in the phylum Microsporidia.
Evidence is provided for extreme morphological plasticity in a microsporidium parasite infecting the musculature of marine crabs and novel approaches to phylogeny, based predominantly upon the informed use of molecular sequence data, are now deemed a necessity.
Enterocytozoon hepatopenaei sp. nov. (Microsporida: Enterocytozoonidae), a parasite of the black tiger shrimp Penaeus monodon (Decapoda: Penaeidae): Fine structure and phylogenetic relationships.
A new microsporidian species, Enterocytozoon hepatopenaei sp. nov., is described from the hepatopancreas of the black tiger shrimp Penaeus monodon (Crustacea: Decapoda). Different stages of the
Molecular phylogeny of the Microsporidia: ecological, ultrastructural and taxonomic considerations.
A comparative small subunit rDNA (ssrDNA) analysis of 125 species of Microsporidia shows that groups or clades are formed based largely on habitat and host, and indicates that structural and ultrastructural characters are unreliable for distinguishing among higher-level microsporidian taxa.
Microsporidia: diverse, dynamic, and emergent pathogens in aquatic systems.
Hyperparasitism and the close phylogenetic relationship between taxa infecting invertebrates and vertebrates not only underline a ubiquity in aquatic systems but also potential for zoonotic transfer.
Microsporidia and 'the art of living together'.
This review attempts to present a general overview of microsporidia, emphasising some less known and/or more recently discovered facets of their biology.