Myxobolus sp. and Henneguya sp. (Cnidaria: Myxobolidae) natural co-infection in the kidney of Piaractus mesopotamicus (Characiformes: Serrasalmidae)

Manrique, Wilson Gómez; Figueiredo, Marco Antônio de Castro; Belo, Marco Antônio de Andrade; Martins, Maurício Laterça; Molnár, Kálmán

doi:10.1007/s00436-017-5571-2

Cited by 5 publications

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References 48 publications

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“…(Cnidaria: Myxosporea: Myxobolidae) were described infecting a large variety of commercial fishes (Eiras et al, 2008;Naldoni et al, 2011;Vidal & Luque, 2017). Infection due to Henneguya species occurs mainly in the gill arches, which leads to destruction of the gill filaments, causing respiratory failure (Dyková & Lom, 1992;Velasco et al, 2015), but it can also be observed to be parasitizing kidney of freshwater fish Piaractus mesopotamicus, causing several histological alterations (Manrique et al, 2017).…”

Section: ___________________ Corresponding Editor: Jesús Ponce-palafoxmentioning

confidence: 99%

Histopathology and molecular identification of Henneguya pseudoplatystoma

Sales

Mauad

Honorato

et al. 2020

Lat. Am. J. Aquat. Res.

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The present study proposes to characterize the parasites isolated during the initial phase of production in fish farms located in Mato Grosso do Sul in the central-western region of Brazil, using histopathology analysis and molecular techniques. A total of 340 hybrid surubim fish (Pseudoplatystoma reticulatum × P. corruscans) from four farms were examined during the co-feeding phase. Histopathology analysis showed that 10.9% (n = 37) of the fish were infected with parasites. Branchitis, lifting epithelium, hypertrophy of epithelial cells, lamellar fusion, aneurisms and infection in the bone tissue of the gill filament was observed. The parasite species was determined by amplification of the 18S rRNA gene followed by sequencing. The phylogenetic analysis of nucleotide sequences indicates a close relationship (99.6%) with Henneguya pseudoplatystoma reported to be infecting the hybrid Pseudoplatystoma. This study demonstrates the occurrence of H. pseudoplatystoma in hybrid surubim (P. reticulatum × P. corruscans) during the co-feeding phase in fish farms in Mato Grosso do Sul. Also, molecular techniques provide a faster and sensitive method to identify fish parasites, and may assist in the development of new management techniques aimed at improving the sanitary conditions contributing to the reduction of mortality rates in these animals.

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Section: ___________________ Corresponding Editor: Jesús Ponce-palafoxmentioning

confidence: 99%

Histopathology and molecular identification of Henneguya pseudoplatystoma

Sales

Mauad

Honorato

et al. 2020

Lat. Am. J. Aquat. Res.

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A new species of Myxosporea, Henneguya quelen, from silver catfish Rhamdia quelen (Siluriforme: Pimelodidae) in the Amazonian region

et al. 2018

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The myxozoans Myxobolus cerebralis and Tetracapsuloides bryosalmonae modulate rainbow trout immune responses: quantitative shotgun proteomics at the portals of entry after single and co-infections

Saleh,

Hummel,

Schlosser

et al. 2024

Front. Cell. Infect. Microbiol.

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IntroductionLittle is known about the proteomic changes at the portals of entry in rainbow trout after infection with the myxozoan parasites, Myxobolus cerebralis, and Tetracapsuloides bryosalmonae. Whirling disease (WD) is a severe disease of salmonids, caused by the myxosporean M. cerebralis, while, proliferative kidney disease (PKD) is caused by T. bryosalmonae, which instead belongs to the class Malacosporea. Climate change is providing more suitable conditions for myxozoan parasites lifecycle, posing a high risk to salmonid aquaculture and contributing to the decline of wild trout populations in North America and Europe. Therefore, the aim of this study was to provide the first proteomic profiles of the host in the search for evasion strategies during single and coinfection with M. cerebralis and T. bryosalmonae.MethodsOne group of fish was initially infected with M. cerebralis and another group with T. bryosalmonae. After 30 days, half of the fish in each group were co-infected with the other parasite. Using a quantitative proteomic approach, we investigated proteomic changes in the caudal fins and gills of rainbow trout before and after co-infection.ResultsIn the caudal fins, 16 proteins were differentially regulated post exposure to M. cerebralis, whereas 27 proteins were differentially modulated in the gills of the infected rainbow trout post exposure to T. bryosalmonae. After co-infection, 4 proteins involved in parasite recognition and the regulation of host immune responses were differentially modulated between the groups in the caudal fin. In the gills, 11 proteins involved in parasite recognition and host immunity, including 4 myxozoan proteins predicted to be virulence factors, were differentially modulated.DiscussionThe results of this study increase our knowledge on rainbow trout co-infections by myxozoan parasites and rainbow trout immune responses against myxozoans at the portals of entry, supporting a better understanding of these host-parasite interactions.

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Myxobolus sp. and Henneguya sp. (Cnidaria: Myxobolidae) natural co-infection in the kidney of Piaractus mesopotamicus (Characiformes: Serrasalmidae)

Abstract: 26This study evaluated the myxozoan infection and histopathology of the kidney of the

Cited by 5 publications

References 48 publications

Histopathology and molecular identification of Henneguya pseudoplatystoma

Histopathology and molecular identification of Henneguya pseudoplatystoma

A new species of Myxosporea, Henneguya quelen, from silver catfish Rhamdia quelen (Siluriforme: Pimelodidae) in the Amazonian region

The myxozoans Myxobolus cerebralis and Tetracapsuloides bryosalmonae modulate rainbow trout immune responses: quantitative shotgun proteomics at the portals of entry after single and co-infections

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