Description of <i>Myxobolus bulbocordis</i> sp. nov. (Myxosporea: Myxobolidae) from the heart of <i>Barbus sharpeyi</i>(Günther) and histopathological changes produced by the parasite

Masoumian, M; Baska, Ferenc; Malnár, K

doi:10.1111/j.1365-2761.1996.tb00115.x

Cited by 14 publications

(15 citation statements)

References 4 publications

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“…In this regard, the tissue specificity for this species of Myxobolus, in the serosa (pericardium), bulbus arteriosus and cardiac muscle, was similar to that of Myxobolus bulbocordis (MASOUMIAN et al, 1996), which was also reported from the serosa of the atrium and bulbus cordis.…”

Section: Introductionsupporting

confidence: 69%

Infection of the heart of Pimelodus ornatus (Teleostei, Pimelodidae), by Myxobolus sp. (Myxozoa, Myxobolidae)

Matos

Videira

Velasco

et al. 2014

Rev. Bras. Parasitol. Vet.

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The phylum Myxozoa Grassé, 1970, consists of a heterogenous group of around 50 genera that are worldwide disseminated in a wide variety of aquatic media. In the present study, 43 specimens of Pimelodus ornatus were collected from an adjacent area to the Cachoeira do Arari municipality on Marajó Island, in the Brazilian state of Pará, in 2013. Macroscopic analysis showed the presence of whitened plasmodia located in the cardiac muscle and also in the region between the bulbus arteriosus and atrium cordis. Microscopic analysis on the parasitized tissues revealed spores that were typically piriform, with the anterior portion slightly narrower than the posterior end. The spore valves were symmetrical. The present species is placed in the genus Myxobolus Butschli, 1882, because of the presence of a pair of equal polar capsules in each spore. The prevalence of parasitism observed was 13.9% (6/43). This research note reports the first occurrence of Myxobolus as a parasite of the heart in the teleostean fish P. ornatus in the Amazon region and confirms the occurrence of secondary myocarditis in this fish, caused by parasitism by Myxobolus sp. The rarity of this parasitic species of Myxobolus at this tissue site, associated with other spore morphology characteristics in the fish, suggests that it is an undescribed species.

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Section: Introductionsupporting

confidence: 69%

Infection of the heart of Pimelodus ornatus (Teleostei, Pimelodidae), by Myxobolus sp. (Myxozoa, Myxobolidae)

Matos

Videira

Velasco

et al. 2014

Rev. Bras. Parasitol. Vet.

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“…Al though according to Icardo et al (2002) the middle layer of the bulbus arteriosus of fish contains smooth muscle cell elements, Molnár et al (2008) stated that the plasmodia of M. dogieli infected only the connective tissue of the heart and the bulbus arteriosus. From data presented by some authors (Heckmann & Jensen 1978, Masoumian et al 1996b, Yoko yama et al 2005, Molnár et al 2008), it appears that muscle cells are only indirectly damaged, and no myxosporean development takes place in the muscle tissue of the heart.…”

Section: Discussionmentioning

confidence: 98%

Tissue preference of some myxobolids (Myxozoa: Myxosporea) from the musculature of European freshwater fishes

Molnár¹,

Székely²

2014

Dis. Aquat. Org.

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For several species of fish myxosporeans known at present, the musculature has been designated as the location of intrapiscine development. In the majority of these cases, plasmodia and spores are actually found in the muscle cells, but there are also myxosporeans that select intermuscular connective tissue, fish bones, nerves and capillaries of the musculature as their site of development. During the plasmodial development of Myxobolus, Henneguya and Thelohanellus species in fish inhabiting Hungarian freshwaters, 3 main locations of development inside the muscles were identified. Pseudodispar-type plasmodia, such as M. cyprini, M. musculi and M. pseudodispar, form plasmodia intracellularly in the muscle cells, while the plasmodia of M. pfeifferi, M. sandrae and T. hovorkai develop in the intermuscular connective tissue. A similar development in the connective tissue of the ventricle and the bulbus arteriosus was observed for M. dogieli, a heart parasite found in some cyprinid fishes. The third type of development is represented by M. tauricus, which prefers the collagenous elements of the fin rays, but its plasmodia are commonly found in the muscle attached to the fish bones.

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“…Although spores have been reported commonly from heart tissue, development of pseudocysts of species of Myxobolus in heart tissue is rare (Bauer et al, 1991;Masoumian et al, 1996).…”

Section: Species Of Myxobolus (Myxozoa) From the Bulbus Arteriosus Ofmentioning

confidence: 99%

Species of Myxobolus (Myxozoa) from the Bulbus Arteriosus of Centrarchid Fishes in North America, with a Description of Two New Species

Cone

Overstreet²

1998

The Journal of Parasitology

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Description of Myxobolus bulbocordis sp. nov. (Myxosporea: Myxobolidae) from the heart of Barbus sharpeyi(Günther) and histopathological changes produced by the parasite

Cited by 14 publications

References 4 publications

Infection of the heart of Pimelodus ornatus (Teleostei, Pimelodidae), by Myxobolus sp. (Myxozoa, Myxobolidae)

Infection of the heart of Pimelodus ornatus (Teleostei, Pimelodidae), by Myxobolus sp. (Myxozoa, Myxobolidae)

Tissue preference of some myxobolids (Myxozoa: Myxosporea) from the musculature of European freshwater fishes

Species of Myxobolus (Myxozoa) from the Bulbus Arteriosus of Centrarchid Fishes in North America, with a Description of Two New Species

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