Supplementary studies and molecular data on Henneguya cerebralis Pronin, 1972 (Myxozoa: Myxosporea), a parasite from Kosogol grayling Thymallus arcticus nigrescens in Mongolia

Batueva, M. D.; Katokhin, Alexey V.; Pronina, S. V.; Pronin, N. M.

doi:10.1016/j.parint.2013.07.014

Cited by 4 publications

(1 citation statement)

References 17 publications

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“…On the other hand, there have been descriptions of parasitism by Henneguya in cartilaginous tissue. Batueva et al (2013) Ziehl-Neelsen staining revealed Henneguya sp. cysts in the bone tissue of the gill filaments (Figures 5-8), and parasite spores were released from the necrotic foci (Figures 6 and 8).…”

Section: Resultsmentioning

confidence: 99%

Infection by Henneguya sp. (Myxozoa) in the bone tissue of the gill filaments of the Amazonian catfish Hypophthalmus marginatus (Siluriformes)

Velasco

Videira

Sindeaux-Neto

et al. 2015

Rev. Bras. Parasitol. Vet.

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This study describes aspects of the infection caused by the myxosporean genus Henneguya, which forms cysts in the bony portion of the gill filaments of Hypophthalmusmarginatus. Specimens of this catfish were acquired dead from artisanal fishermen near the town of Cametá, state of Pará, northern Brazil, between July 2011 and May 2012. They were transported in refrigerated containers to the Carlos Azevedo Research Laboratory at the Federal Rural University of Amazonia, in Belém, where analyses were performed. After confirmation of parasitism by the genus Henneguya, observation were made using optical and differential interference contrast (DIC) microscopy. The histological technique of embedment in paraffin was used. Ziehl-Neelsen staining was applied to the histological sections. Necropsy analyses on specimens of H. marginatus showed that 80% of them (40/50) had cysts of whitish coloration inside the bony portion of the gill filaments, filled with Henneguya spores. The present study found inflammatory infiltrate in the vicinity of the cysts. Furthermore, the special Ziehl-Neelsen staining technique made it possible to mark the Henneguya sp. cysts in the bone tissue and in spore isolates in the gill tissue structure. The descriptions of these histopathological findings show that this parasite is very invasive and causes damage to its host tissues.

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Section: Resultsmentioning

confidence: 99%

Infection by Henneguya sp. (Myxozoa) in the bone tissue of the gill filaments of the Amazonian catfish Hypophthalmus marginatus (Siluriformes)

Velasco

Videira

Sindeaux-Neto

et al. 2015

Rev. Bras. Parasitol. Vet.

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Synopsis of myxosporean species (Cnidaria: Myxozoa) parasitizing fishes from Vietnam

et al. 2023

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This paper provides an update checklist of species-level identi ed myxosporean species from marine and freshwater shes in Vietnam. The list includes 51 nominal myxosporean species (38 marine and 13 freshwater) belonging to 9 genera: Myxobolus (26 species); Kudoa (6 species); Henneguya (6 species); Thelohanellus (5 species); Unicapsula (2 species); Ceratomyxa (2 species), Zschokkella (2 species); Auerbachia (1 species), and Meglitschia (1 species). For each parasite species, information on morphological characteristics of myxospore, sh hosts, infection sites, and collection locality in Vietnam along with GenBank accession number of nucleotide sequence data and the line drawings were provided. In addition, taxonomic status of several species was discussed and Myxobolus eszterbaueri nom. nov. is proposed as a junior homonym for Myxobolus hakyi Baska, Voronin, Eszterbauer, Müller, Marton & Molnár 2009.

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New morphological data and molecular diagnostic of Henneguya friderici (Myxozoa: Myxobolidae), a parasite of Leporinus friderici (Osteichthyes: Anostomidae) from southeastern Brazil

Vidal

Luque

2017

Rev. Bras. Parasitol. Vet.

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The myxozoan Henneguya friderici is a parasite of the gills, intestine, kidney and liver of Leporinus friderici, a characiform fish belonging to the family Anostomidae. Forty-two specimens of L. friderici that had been caught in the Mogi Guaçú River, state of São Paulo, were studied. Elongated white plasmodia were found in the gill filaments of 10 host specimens (24%). The mature spores had an ellipsoidal body with polar capsules of equal size and caudal length greater than body length. This study also described 18S rDNA sequencing of H. friderici infecting the gill filaments. This produced a sequence of 1050 bp that demonstrated significant genetic differences with previously described species of Henneguya. Similarity analysis using sequences from species that clustered closest to those produced by this study showed that the species with greatest genetic similarity to H. friderici was H. leporinicola, with 94% similarity.

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Supplementary studies and molecular data on Henneguya cerebralis Pronin, 1972 (Myxozoa: Myxosporea), a parasite from Kosogol grayling Thymallus arcticus nigrescens in Mongolia

Cited by 4 publications

References 17 publications

Infection by Henneguya sp. (Myxozoa) in the bone tissue of the gill filaments of the Amazonian catfish Hypophthalmus marginatus (Siluriformes)

Infection by Henneguya sp. (Myxozoa) in the bone tissue of the gill filaments of the Amazonian catfish Hypophthalmus marginatus (Siluriformes)

Synopsis of myxosporean species (Cnidaria: Myxozoa) parasitizing fishes from Vietnam

New morphological data and molecular diagnostic of Henneguya friderici (Myxozoa: Myxobolidae), a parasite of Leporinus friderici (Osteichthyes: Anostomidae) from southeastern Brazil

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