<i>Unicapsula marquesi</i>n. sp. (Myxosporea, Multivalvulida) parasite des branchies de<i>Polydactylus quadrifilis</i>(Cuvier, 1829) (Poisson, Polynemidae) des côtes sénégalaises (Afrique de l'Ouest)

Diebakate, Cheikhna; Fall, Modou; Faye, N.; Toguebaye, Bhen Sikina

doi:10.1051/parasite/1999063231

Cited by 12 publications

(11 citation statements)

References 2 publications

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Section: Discussionsupporting

confidence: 82%

“…At the suture line, the shell valves form a deep invagination into the spore body. This condition has also been reported in U. seriolae (Lester 1982), U. marquesi (Diebakate et al 1999) and earlier in U. pflugfelderi (Schubert et al 1975), but has not been reported from other genera and might thus represent a genus-specific structure. However, a similar genus-specific suture structure has been ascribed to the genus Kudoa (Diamant et al 2005), which shows overlapping flanges of the cell valves, whereas in all other myxosporeans (bivalvulids), a simple mode of valve adjoining is found.…”

Section: Discussionsupporting

confidence: 79%

“…Although described with only two valve cells, the type species U. muscularis also shows the largest valve cell covering the polar capsule. The remainder of the species: U. pyramidata Naidjenova & Zaika, 1970; U. seriolae Lester, 1982 and U. marquesi Diebakate et al., 1999 show large paired valve cells, whereas the unpaired cell is reduced. In conclusion, the valve cell organization divides the genus in two groups: one with the unpaired valve cell larger and the other one with the unpaired valve cell smaller than the two paired cells.…”

Section: Resultsmentioning

confidence: 99%

“…(a1–5) Note that the unpaired valve cell is larger than the other two. Schematic drawings of (b1) U. pyramidata (after Naidjenova & Zaika 1970), (b2) U. seriolae (after Lester 1982) and (b3) U. marquesi (after Diebakate et al. 1999).…”

Section: Resultsmentioning

confidence: 99%

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Morphological and molecular redescription of the myxozoan Unicapsula pflugfelderiSchubert, Sprague & Reinboth 1975 from two teleost hosts in the Mediterranean. A review of the genus Unicapsula Davis 1924

Alama-Bermejo

Cuadrado

Raga

et al. 2009

Journal of Fish Diseases

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Elongate plasmodia with myxosporean spores belonging to the genus Unicapsula, Davis, 1924 were found in the skeletal muscle of the striped seabream, Lithognathus mormyrus (L.), a candidate for the mediterranean aquaculture. The only species of Unicapsula described from the Mediterranean is Unicapsula pflugfelderi Schubert et al. 1975, which occurs in the picarel, Spicara smaris (L.). For morphological and molecular comparison of U. pflugfelderi from S. smaris with Unicapsula sp. from L. mormyrus measurements of plasmodia and spores, ultrastructural details and 18S and 28S rDNA sequences were analysed. Whereas plasmodia were 2-3 times larger in S. smaris than in L. mormyrus (length 2.47-0.81 mm; width 0.22-0.09 mm; P = 0.000), spore morphology showed minor differences and both 18S and 28S rDNA sequences were 100% identical identifying the myxozoan as U. pflugfelderi. Scanning electron microscopy of the spores revealed a different shell valve distribution than the one used for the diagnosis of the genus Unicapsula. This resulted in a review of the genus Unicapsula dividing it into two morphological groups of different spore valve arrangement. TEM revealed the presence of a yet undescribed crystalline structure in the sporoplasm of the spores.

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Section: Discussionsupporting

confidence: 82%

Section: Discussionsupporting

confidence: 79%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Morphological and molecular redescription of the myxozoan Unicapsula pflugfelderiSchubert, Sprague & Reinboth 1975 from two teleost hosts in the Mediterranean. A review of the genus Unicapsula Davis 1924

Alama-Bermejo

Cuadrado

Raga

et al. 2009

Journal of Fish Diseases

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“…Relatively little is known in this area. Several studies have examined associations between the anthropometry of mothers (and sometimes fathers) and their babies [12-14], but such data can be difficult to interpret, due to strong correlations between the different indices of body composition. Others have overcome this by using principal components analysis [PCA], a statistical technique that transforms multiple observed variables into a smaller number of uncorrelated components that are interpretable [15-18].…”

Section: Introductionmentioning

confidence: 99%

A principal components approach to parent-to-newborn body composition associations in South India

et al. 2009

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Background: Size at birth is influenced by environmental factors, like maternal nutrition and parity, and by genes. Birth weight is a composite measure, encompassing bone, fat and lean mass. These may have different determinants. The main purpose of this paper was to use anthropometry and principal components analysis (PCA) to describe maternal and newborn body composition, and associations between them, in an Indian population. We also compared maternal and paternal measurements (body mass index (BMI) and height) as predictors of newborn body composition.

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Unicapsula species (Myxosporea: Trilosporidae) of Australian marine fishes, including the description of Unicapsula andersenae n. sp. in five teleost families off Queensland, Australia

Miller

Adlard

2013

Parasitol Res

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A survey of the myxosporean fauna of Australian marine fishes revealed the presence of three previously unreported species of Unicapsula (Multivalvulida: Trilosporidae) from sites off Southeast Queensland, off Lizard Island on the Great Barrier Reef, Queensland, and from Jurien Bay in Western Australia. Morphometric data (spore, polar capsule and caudal appendage dimensions) combined with Bayesian inference and maximum likelihood analyses of small subunit (SSU) and large subunit (LSU) ribosomal DNA (rDNA) were used for species identification and to explore relationships among these taxa. The four species of Unicapsula for which DNA data are now available for comparative purposes (Unicapsula andersenae n. sp., Unicapsula pflugfelderi, Unicapsula seriolae and Unicapsula pyramidata) formed a well-supported monophyletic sister clade to the other major multivalvulidan group, the Kudoidae. The combined morphometric and genetic diagnostic approach identified an undescribed taxon, U. andersenae n. sp., from the muscle of Argyrosomus japonicus, Acanthopagrus australis and Eleutheronema tetradactylum off the Southeast Queensland coast and in Lutjanus russellii and Sillago ciliata off Lizard Island. Intra-specific variation within U. andersenae n. sp. varied from 2-4 (0.2-0.4%) nucleotides over the SSU region to 2-20 (0.3-3.2%) over the LSU region. Inter-specific variation between U. andersenae n. sp. and the other three species for which genetic sequence data are now available ranged from 15-66 (3-6.5%) nucleotides over the SSU region to 103-120 (17.6-21.2%) nucleotides over the LSU region. The host distribution observed here for U. andersenae n. sp. (five fish species from five different fish families) represents the broadest specificity known for a single species of Unicapsula. U. pyramidata Naidjenova & Zaika 1970, whose spore morphology and presence of caudal appendages immediately distinguish it from other species, was recovered from the nemipterid, Scolopsis monogramma, off Lizard Island. U. seriolae Lester 1982 is reported here from Yellowtail Kingfish, Seriola lalandi, from sites off Queensland and from Jurien Bay, Western Australia. Comparative genetic analyses also revealed that an unidentified species of Unicapsula from Epinephelus septemfasciatus off Japan whose rDNA sequence data are available on GenBank is consistent with U. seriolae. This suggests that U. seriolae may also exhibit low host specificity and may be distributed widely throughout the Indo-West Pacific region. In comparison to other myxozoan genera, it is clear that the species richness of Unicapsula spp. falls well below that displayed by either Ceratomyxa spp. or Kudoa spp. The discovery of a further new species of Unicapsula in Australia now brings the total worldwide number of formally described Unicapsula species to a modest 11. Nonetheless, this taxon remains of significant interest to commercial and recreational fisheries through the potential production of macroscopic pseudocysts in fish muscle and post-mortem muscle liquefaction, both of ...

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Unicapsula marquesin. sp. (Myxosporea, Multivalvulida) parasite des branchies dePolydactylus quadrifilis(Cuvier, 1829) (Poisson, Polynemidae) des côtes sénégalaises (Afrique de l'Ouest)

Cited by 12 publications

References 2 publications

Morphological and molecular redescription of the myxozoan Unicapsula pflugfelderiSchubert, Sprague & Reinboth 1975 from two teleost hosts in the Mediterranean. A review of the genus Unicapsula Davis 1924

Morphological and molecular redescription of the myxozoan Unicapsula pflugfelderiSchubert, Sprague & Reinboth 1975 from two teleost hosts in the Mediterranean. A review of the genus Unicapsula Davis 1924

A principal components approach to parent-to-newborn body composition associations in South India

Unicapsula species (Myxosporea: Trilosporidae) of Australian marine fishes, including the description of Unicapsula andersenae n. sp. in five teleost families off Queensland, Australia

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