Four novel Myxobolus species (Cnidaria: Myxozoa) infecting Anatolian khramulya Capoeta tinca (Cyprinidae) in Northern Turkey

2020 ◽  
Author(s):  
GZ Pekmezci ◽  
B Yardimci ◽  
CS Bolukbas ◽  
S Yilmaz ◽  
N Polat
Keyword(s):  
Myxobolus Species

A new species of myxozoa in the skeletal striated musculature of Rhamdia quelen (Quoy & Gaimard) (Siluriforme: Pimelodidae) Amazonian fish, Marajó island, Brazil

Zootaxa ◽  
2018 ◽  
Vol 4482 (1) ◽  
pp. 164
Author(s):  
JACQUELINE ABRUNHOSA ◽  
JOSE L. SINDEAUX-NETO ◽  
SIDNEY SANTOS ◽  
IGOR HAMOY ◽  
EDILSON MATOS
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Bayesian Inference ◽  
Myxobolus Species ◽  
Molecular Analyses ◽  
Amazonian Fish ◽  
Rhamdia Quelen ◽  
Marajó Island ◽  
A New Species ◽  
18S Rdna Gene

A new myxozoan was found parasitizing the freshwater catfish, Rhamdia quelen (Quoy & Gaimard), in the Marajó island, Amazon region, Brazil. The new species is described based on the results of morphological and molecular analyses. The parasite is approximately 1.5 mm in diameter and develops in the musculature of the host in the form of spherical, whitish cysts, which are visible macroscopically between the epaxial and hypaxial layers. When ruptured, these cysts produced ellipsoidal spores with a mean length of 11.4 μm (10.7–12.6) and width of 7.2 μm (6.4–7.9). Anomalous spores with a caudal elongation, vesicles in the peripheral portion of the spore and ornamentation of the valves were also observed. The results of the phylogenetic analysis of sequences of the 18S rDNA gene using Bayesian Inference indicated clear differences among the Myxobolus species that reinforced the taxonomic position of the parasite, confirming its status as a new species, denominated Myxobolus arariensis n. sp. 

Myxobolus species infecting the cartilaginous rays of the gill filaments in cyprinid fishes

2008 ◽  
Vol 53 (4) ◽  
Author(s):  
Kálmán Molnár ◽  
Gábor Cech ◽  
Csaba Székely
Keyword(s):  
18S Rdna ◽  
Rutilus Rutilus ◽  
Molecular Methods ◽  
Roach Rutilus Rutilus ◽  
Myxobolus Species ◽  
Rdna Sequences ◽  
Gill Filaments ◽  
18S Rdna Sequences ◽  
Cyprinid Fishes ◽  
Bleak Alburnus Alburnus

AbstractDuring a survey on myxosporean parasites of cyprinid fishes in Hungary, Myxobolus infections were found in the cartilaginous rays of the gill filaments in roach (Rutilus rutilus) and bleak (Alburnus alburnus). Myxobolus spp. causing the infections were studied by morphological, histological and molecular methods. Small plasmodia surrounded by chondrocytes contained relatively few spores which differed from each other and from the known Myxobolus spp. both in their morphology and 18S rDNA sequences. Both species, described as M. feisti sp. nov. and M. susanlimae sp. nov., are characterised by a specific cartilaginous histotropism.

Enteric pathogens of food sellers in rural Gambia with incidental finding of Myxobolus species (Protozoa: Myxozoa)

2015 ◽  
Vol 109 (5) ◽  
pp. 334-339 ◽  
Author(s):  
R. S. Bradbury ◽  
B. Barbe ◽  
J. Jacobs ◽  
A. T. Jallow ◽  
K. C. Camara ◽  
...  
Keyword(s):  
Incidental Finding ◽  
Enteric Pathogens ◽  
Myxobolus Species

Taxonomy, phylogeny and host-parasite interaction of two novel Myxobolus species infecting Brycon orthotaenia from the São Francisco River, Brazil

2020 ◽  
Vol 76 ◽  
pp. 102061 ◽  
Author(s):  
Juliana Naldoni ◽  
Jose O.L. Pereira ◽  
Tiago Milanin ◽  
Edson A. Adriano ◽  
Marcia R.M. da Silva ◽  
...  
Keyword(s):  
Myxobolus Species ◽  
Sao Francisco River ◽  
São Francisco River ◽  
Host Parasite

scholarly journals Molecular Phylogeny and taxonomy of a new Myxobolus species from the endangered ornamental fish, Otocinclus cocama endemic to Peru: A host-parasite coextinction approach

Acta Tropica ◽  
2020 ◽  
Vol 210 ◽  
pp. 105545 ◽  
Author(s):  
Patrick D. Mathews ◽  
Omar Mertins ◽  
Tiago Milanin ◽  
Luis L. Espinoza ◽  
Anai P. Flores-Gonzales ◽  
...  
Keyword(s):  
Molecular Phylogeny ◽  
Ornamental Fish ◽  
Myxobolus Species ◽  
Host Parasite

scholarly journals Prevalence and Mean Intensity of Myxobolus spp. Parasitizing Oreochromis niloticus in Cameroon

2019 ◽  
Vol 11 (2) ◽  
pp. 35
Author(s):  
Guy Benoit LEKEUFACK FOLEFACK ◽  
Chanceline MALA KENGNE ◽  
Bienvenu FEUDJIO DONGMO ◽  
Abraham FOMENA
Keyword(s):  
Oreochromis Niloticus ◽  
Calculated Data ◽  
Chi Square ◽  
Anterior Portion ◽  
Myxobolus Species ◽  
Mean Intensity ◽  
Host Sex ◽  
Cultured Fish ◽  
Chi Square Test ◽  
The Mean

Oreochromis niloticus, being one of the most commonly cultured fish on earth constitutes a favorable biotope for myxosporidia. This study provides information concerning the prevalence and mean intensity of Myxobolus species recorded in the kidney and spleen of O. niloticus. O. niloticus were sampled in farming ponds at Bamendou in Cameroon. Classic methods concerning fishing, fish autopsy and search of Myxosporidia were used. Prevalence and mean intensity was calculated. Data analysis based on the chi-square test, Kruskal-Wallis H test and Mann-Whitney U test was done. The study revealed the presence of six Myxobolus species in the kidney and spleen of O. niloticus. All parasites species appeared frequent while their mean intensity was low or very low. The occurrence of M. fotoi was statistically lower (P < 0.05) in the kidney’s anterior portion while the mean intensity of M. agolus was statistically (P < 0.01) higher in the anterior portion of the spleen. Myxobolus cichlidarum was not found in kidney of young fish and occurrence of M. agolus statistically increases (P < 0.05) with host age. Host sex has significant influence (P < 0.05) on: occurrence of M. agolus, M. fotoi, M. agolus, M. brachysporus and M. heterosporus; and mean intensity of M. fotoi. The study revealed that in O. niloticus, the kidney and spleen harboured the same parasites species and there were only few variations in occurrences and mean intensities of parasites species recorded as function of host organs, age and sex.

Molecular and Morphological Analysis of Myxobolus Spp. of Salmonid Fishes with the Description of a New Myxobolus Species

2008 ◽  
Vol 94 (6) ◽  
pp. 1322-1334 ◽  
Author(s):  
Jayde A. Ferguson ◽  
Stephen D. Atkinson ◽  
Christopher M. Whipps ◽  
Michael L. Kent
Keyword(s):  
Morphological Analysis ◽  
Salmonid Fishes ◽  
Myxobolus Species

scholarly journals Myxozoan infection in the muscle layer of the intestine of Rhamdia quelen from the Amazon River Basin, Brazil

2016 ◽  
Vol 46 (11) ◽  
pp. 2024-2028 ◽  
Author(s):  
Jacqueline Pompeu Abrunhosa ◽  
Michele Velasco Oliveira da Silva ◽  
José Ledamir Sindeaux Neto ◽  
Patrícia de Fátima Sacco dos Santos ◽  
Patrícia Santos Matos ◽  
...  
Keyword(s):  
River Basin ◽  
Phylogenetic Relationships ◽  
Muscle Layer ◽  
The Other ◽  
Amazon River ◽  
Congeneric Species ◽  
Amazon River Basin ◽  
Myxobolus Species ◽  
Morphometric Analyses ◽  
Rhamdia Quelen

ABSTRACT: The present study investigated the morphology and pathology associated with the occurrence of cysts caused by Myxobolus sp. in the intestine of the silver catfish Rhamdia quelen . Comparisons with the other Myxobolus species that infect the intestines of cyprinids and siluriforms revealed that the pyriform spores of Myxobolus sp. are similar in shape to those described previously in M. miyairii, M. duodenalis and M. cunhai, but different in size. Morphometric analyses revealed that mature spores of Myxobolus sp. (10.9 x 5.1μm) are smaller than those of most species except M. cunhai (10.0 x 5.0μm), which has been described infecting the Brazilian catfish Pimelodus clarias , although the spores differ morphologically in relation to the shape of the polar capsules. Further research is necessary in order to clarify the taxonomic and phylogenetic relationships among these congeneric species.

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