Cucumispora ornata n. sp. (Fungi: Microsporidia) infecting invasive ‘demon shrimp’ (Dikerogammarus haemobaphes) in the United Kingdom

Bojko, Jamie; Dunn, Alison M.; Stebbing, Paul; Ross, Stuart; Kerr, Rose; Stentiford, Grant D.

doi:10.1016/j.jip.2015.04.005

Cited by 34 publications

(39 citation statements)

References 34 publications

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“…Ultrastructurally, the developmental cycle of the microsporidian in G. roeselii resembled that of C. dikerogammari described by Ovcharenko et al [23] and C. ornata described by Bojko et al [22]. Infected muscle fibres contained tightly packed merogonial and sporogonial life stages, which developed in direct contact with the host muscle cytoplasm; often in the sarcolemmal space.…”

Section: Resultssupporting

confidence: 53%

“…Sample preparation and observation via transmission electron microscopy (TEM) for muscle and hepatopancreas tissues dissected from G. roeselii followed that used by Bojko et al [22]. …”

Section: Methodsmentioning

confidence: 99%

“…Some of the microsporidians infecting G. roeselii (Table 1) are taxa previously associated with other invasive amphipod hosts [17, 21, 22]. Some unassigned ‘ Microsporidium ’ spp .…”

Section: Introductionmentioning

confidence: 99%

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Parasites, pathogens and commensals in the “low-impact” non-native amphipod host Gammarus roeselii

et al. 2017

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BackgroundWhilst vastly understudied, pathogens of non-native species (NNS) are increasingly recognised as important threats to native wildlife. This study builds upon recent recommendations for improved screening for pathogens in NNS by focusing on populations of Gammarus roeselii in Chojna, north-western Poland. At this location, and in other parts of continental Europe, G. roeselii is considered a well-established and relatively ‘low-impact’ invader, with little understanding about its underlying pathogen profile and even less on potential spill-over of these pathogens to native species.ResultsUsing a combination of histological, ultrastructural and phylogenetic approaches, we define a pathogen profile for non-native populations of G. roeselii in Poland. This profile comprised acanthocephalans (Polymorphus minutus Goese, 1782 and Pomphorhynchus sp.), digenean trematodes, commensal rotifers, commensal and parasitic ciliated protists, gregarines, microsporidia, a putative rickettsia-like organism, filamentous bacteria and two viral pathogens, the majority of which are previously unknown to science. To demonstrate potential for such pathogenic risks to be characterised from a taxonomic perspective, one of the pathogens, a novel microsporidian, is described based upon its pathology, developmental cycle and SSU rRNA gene phylogeny. The novel microsporidian Cucumispora roeselii n. sp. displayed closest morphological and phylogenetic similarity to two previously described taxa, Cucumispora dikerogammari (Ovcharenko & Kurandina, 1987), and Cucumispora ornata Bojko, Dunn, Stebbing, Ross, Kerr & Stentiford, 2015.ConclusionsIn addition to our discovery extending the host range for the genus Cucumispora Ovcharenko, Bacela, Wilkinson, Ironside, Rigaud & Wattier, 2010 outside of the amphipod host genus Dikerogammarus Stebbing, we reveal significant potential for the co-transfer of (previously unknown) pathogens alongside this host when invading novel locations. This study highlights the importance of pre-invasion screening of low-impact NNS and, provides a means to document and potentially mitigate the additional risks posed by previously unknown pathogens.Electronic supplementary materialThe online version of this article (doi:10.1186/s13071-017-2108-6) contains supplementary material, which is available to authorized users.

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Section: Resultssupporting

confidence: 53%

“…Sample preparation and observation via transmission electron microscopy (TEM) for muscle and hepatopancreas tissues dissected from G. roeselii followed that used by Bojko et al [22]. …”

Section: Methodsmentioning

confidence: 99%

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Parasites, pathogens and commensals in the “low-impact” non-native amphipod host Gammarus roeselii

et al. 2017

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“…In contrast, Dikerogammarus haemobaphes, presents UK populations with high prevalence of parasites, such as the Microsporidia Dictyocoela berillonum and Cucumispora ornate (Bojko et al, 2015) or the Nematoda Hysterothylacium deardorffoverstreetorum (Etxabe et al, 2015). In this, case it is possible that the initial invasive population consisted of a small number of infected individuals and that the current infection prevalence represents a parasitic founder-effect (Etxabe et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

Enhanced fecundity and parasite release in the first amphipod invader on the Iberian Peninsula

Banha

Anastácio

Rachalewski

et al. 2018

Knowl. Manag. Aquat. Ecosyst.

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“…in gammarid amphipods). It is worthy to note that despite this clustering, described life cycle characters of these genera do not include development within a sporophorous vesicle typical of Thelohania (Stentiford et al, 2010;Ovcharenko et al, 2010;Bojko et al, 2015), providing further evidence for potentially significant morphological plasticity in closely related microsporidian parasites infecting the musculature of arthropods (Stentiford et al, 2013b pleisimorphic trait within the phylum) is impractical for defining members of the genus Thelohania. To this end, it cannot be stated with certainty that T. butleri represents a true close relative of T. giardia, as proposed in Brown and Adamson (2006).…”

Section: Discussionmentioning

confidence: 99%

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

Stentiford

Ross

Kerr

et al. 2015

Journal of Invertebrate Pathology

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Cucumispora ornata n. sp. (Fungi: Microsporidia) infecting invasive ‘demon shrimp’ (Dikerogammarus haemobaphes) in the United Kingdom

Cited by 34 publications

References 34 publications

Parasites, pathogens and commensals in the “low-impact” non-native amphipod host Gammarus roeselii

Parasites, pathogens and commensals in the “low-impact” non-native amphipod host Gammarus roeselii

Enhanced fecundity and parasite release in the first amphipod invader on the Iberian Peninsula

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

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