Experimental infection of turbot (Scophthalmus maximus L.) with a microsporean parasite (Glugea atherinae Berrebi 1979) of the sand smelt (Atherina presbyter C.)

Leiro, J.; Bos, J.; Iglesias, R.; Estévez, Juan José Ibáñez; Fernández, J.; Sammartin, Manuel L.

doi:10.1016/0044-8486(93)90275-4

Cited by 4 publications

(3 citation statements)

References 21 publications

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“…During penetration, migration or parasitation, parasites are able to provoke different ranges of response from the host, usually limited to the production of soft tissue (Taylor et al., 1994). The first tissue response reflects the organization of a connective tissue envelope that firmly surrounds the cyst (Hoffman, 1958; Huehner and Etges, 1981; Leiro et al., 1993; Roubal, 1993), consisting of collagenous tissue that is abundant in fibres, fibrocytes and fibroblasts. Tuna react to didymozoid infections by the formation of more‐or‐less pigmented, unmineralized, fibrous granulomas, typical for many parasite infections in general.…”

Section: Discussionmentioning

confidence: 99%

Type and ultrastructure ofDidymocystis wedliandKoellikerioides intestinalis(Digenea, Didymozoidae) cysts in captive Atlantic bluefin tuna (Thunnus thynnusLinnaeus, 1758)

Mladineo

Bočina

2009

Journal of Applied Ichthyology

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Tissue encapsulation, one of the most common tissue reactions to invading parasites, is the hallmark sign of didymozoid (Digenea, Didymozoidae) infections in fish. Investigated were the types of intermediate filaments and ultrastructure of the connective tissue capsule elicited by the presence of didymozoids in the gills and intestine of Atlantic bluefin tuna (Thunnus thynnus Linnaeus, 1758). The evaluation was done performing TEM microscopy of two tissue-embedded didymozoid species, along with monoclonal antibodies labeling (anti-fish collagen type I, anti-human cytokeratin, anti-vimentin antibodies). Ultrastructure of Didymocystis wedli (Ariola, 1902) (prevalence = 61.75%, abundance = 28.91) encapsulated in gill filaments and Koellikerioides intestinalis (Yamaguti, 1970) (prevalence = 54.65%, abundance = 10.96) in the intestinal submucosa showed that the thin parasitic hindbody tegumentum was directly embedded in layers of connective tissue bands. Only a few cellular elements (lymphocytes, fibroblasts and fibrocytes) infiltrated the connective tissue capsule, which differed between the two didymozoid species in thickness, not in the type of filaments expressed. Cysts showed positive reaction to extracellular collagen as well as appearing positive for the cytoskeletal intermediate filaments vimentin and cytokeratin.

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Section: Discussionmentioning

confidence: 99%

Type and ultrastructure ofDidymocystis wedliandKoellikerioides intestinalis(Digenea, Didymozoidae) cysts in captive Atlantic bluefin tuna (Thunnus thynnusLinnaeus, 1758)

Mladineo

Bočina

2009

Journal of Applied Ichthyology

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“…In spite of some n~orphological differ- Leiro et al 1993). These observations and our results suggest that G. anomala, G. stephani and G. atherinae could be only 1 species.…”

Section: Resultsmentioning

confidence: 99%

“…Molecular analyses based on rDNA sequence data are increasingly applied to the phylum Microsporidia. The small subunit (SSU) rRNA or rDNA sequences have already been determined for many Microsporidia including Vairimorpha neca trix (Vossbrinck et al 1987), Ameson michaelis (Zhu et al 1993a), Encephalitozoon cuniculi (Zhu et al 1993b), Septata intestinalis (Zhu et al 1993c), Enterocytozoon bieneusi (Zhu et al 1994) and Glugea atherinae (Genbank: U15987 (Mathieu-Daude et al 1992) and to the turbot Scophthalmus maximus (Leiro et al 1993 (Loubes et al 1979, Takvorian & Cali 1986.…”

Section: Introductionmentioning

confidence: 99%

Ribosomal DNA sequences of Glugea anomala, G. stephani, G. americanus and Spraguea lophii (Microsporidia):phylogenetic reconstruction

Pomport-Castillon¹,

Jonckheere²,

Romestand³

2000

Dis. Aquat. Org.

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The microsporidian species Glugea anomala, G. stephani, G . americanus and Spraguea lophii were compared by using sequence data derived from their small subunit rDNA genes which were amplified by polyrnerase chaln reaction and directly sequenced. These sequence data and published data of G. atherinae were analyzed and were used to infer a phylogenetic tree. The 5 rnicrosporidian fish parasites appeared to be closely related. The higher sequence similarities demonstrated among G. anomala, G. stephani and G. atherinae suggest that these 3 parasites are in fact only 1 species of Glugea. Moreover, the higher sequence similarities between S. lophji and G. americanus support the transfer of the latter Glugea species into the genus Spraguea.

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Serological relationships between two microsporidian parasites of fish

et al. 1994

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Experimental infection of turbot (Scophthalmus maximus L.) with a microsporean parasite (Glugea atherinae Berrebi 1979) of the sand smelt (Atherina presbyter C.)

Cited by 4 publications

References 21 publications

Type and ultrastructure ofDidymocystis wedliandKoellikerioides intestinalis(Digenea, Didymozoidae) cysts in captive Atlantic bluefin tuna (Thunnus thynnusLinnaeus, 1758)

Type and ultrastructure ofDidymocystis wedliandKoellikerioides intestinalis(Digenea, Didymozoidae) cysts in captive Atlantic bluefin tuna (Thunnus thynnusLinnaeus, 1758)

Ribosomal DNA sequences of Glugea anomala, G. stephani, G. americanus and Spraguea lophii (Microsporidia):phylogenetic reconstruction

Serological relationships between two microsporidian parasites of fish

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