Kudoa dianae sp. n. (Myxosporea: Multivalvulida), a new parasite of bullseye puffer, Sphoeroides annulatus (Tetraodontiformes: Tetraodontidae)

Dyková, Iva; Avila, Emma Josefina Fajer; Fiala, Ivan

doi:10.14411/fp.2002.006

Cited by 29 publications

(24 citation statements)

References 18 publications

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“…The comparisons between present material and all the other species in extra-muscular locations showed that they do not match any of the descriptions, despite some similarities relating to hosts and parasite location within the host. Kudoa dianae Dyková, et al 2002, was more similar to our specimens and has been found infecting Sphoeroides annulatus in Mexico (DYKOVÁ et al, 2002). This species is also located on the wall of the esophagus.…”

Section: Discussionsupporting

confidence: 79%

Kudoa spp. (Myxozoa, Multivalvulida) parasitizing fish caught in Aracaju, Sergipe, Brazil

Eiras

Fujimoto

Madi

et al. 2016

Rev. Bras. Parasitol. Vet.

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This study reports on Kudoa spp. (Myxozoa, Multivalvulida) from the fish species Lutjanus analis, Bagre marinus, Aspistor luniscutis and Lutjanus jocu, which were caught in Aracaju, state of Sergipe, Brazil. The parasites formed oval plasmodia around the esophagus of L. analis, and elongated plasmodia inside the skeletal muscle of B. marinus, A. luniscutis and L. jocu. Host myoliquefaction was not observed in all the cases studied. The current study provides a morphological and morphometric description of each parasite as well as a comparison with all the species described worldwide. Lack of molecular data impaired specific identification of the parasites. The importance of these parasites is discussed and the need for further studies on infections in Brazilian fish is emphasized because of the high economic impact of some Kudoa species which cause liquefaction in hosts' muscles and render these fish unsuitable for consumption.Keywords: Kudoa, Myxosporea, parasites, marine fish, Brazil. ResumoEste estudo relata Kudoa spp. (Myxozoa, Multivalvulida) de espécies de peixes Lutjanus analis, Bagre marinus, Aspistor luniscutis e Lutjanus jocu que foram capturados na costa litorânea de Aracaju, Estado de Sergipe, Brasil. Os parasitas formavam plasmódios ovais rodeando o esófago em L. analis, enquanto que nas espécies B. marinus, A. luniscutis e L. jocu formavam plasmódios alongados no interior das fibras musculares. Fenômenos de liquefação do músculo do hospedeiro não foram observados. O presente estudo proporciona uma descrição morfológica e morfométrica de cada parasita, sendo feita uma comparação com todas as espécies conhecidas em todo mundo. A inexistência de dados moleculares prejudica a identificação específica dos parasitas. A importância destes parasitas é discutida e a necessidade de mais estudos relacionados a infecções em peixes brasileiros é enfatizada por causa do alto impacto econômico de algumas espécies de Kudoa que causam liquefação nos músculos dos hospedeiros e tornam estes peixes impróprios para consumo.Palavras-chave: Kudoa, Myxosporea, parasitas, peixes marinhos, Brasil.

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Section: Discussionsupporting

confidence: 79%

Kudoa spp. (Myxozoa, Multivalvulida) parasitizing fish caught in Aracaju, Sergipe, Brazil

Eiras

Fujimoto

Madi

et al. 2016

Rev. Bras. Parasitol. Vet.

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“…e Ultrathin section of the spore with polar filament (PF) extruded from large polar capsule (PC). Scale bars: a=0.2 mm, b=0.1 mm, c=2.0μm, d=4.8μm, e=1.0μm the intestine and from the pyloric caeca of mullets from commercial fish of the Indian and the Pacific Oceans (Sarkar and Chaudhury 1996;Tripathi 1951;Dykova et al 2002;Egusa and Shiomitsu, 1983). The spore morphology of K. unicapsula n. sp.…”

Section: Resultsmentioning

confidence: 99%

Kudoa unicapsula n. sp. (Myxosporea: Kudoidae) a parasite of the Mediterranean mullets Liza ramada and L. aurata (Teleostei: Mugilidae)

et al. 2007

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A new multivalvulid myxozoan parasite, Kudoa unicapsula n. sp., is described from the intestinal mesentery, intestine and pyloric caeca of the thin-lipped grey mullet Liza ramada (Risso 1826) and the golden grey mullet L. aurata (Risso, 1810) from the Mediterranean coastal waters of Spain. It is characterized by the presence of elongated, rice corn-like white cysts of 0.47-0.56 x 0.18-0.38 mm, filled with tetracapsulate, slightly asymmetric spores, rectangular in apical view and tear-shaped in lateral view with four polar capsules of considerably different size and slightly unequal spore valves with rounded edges, overlapping each other on the apex of the spore. One large polar capsule includes a polar filament coiled in two to three turns, and the other three polar capsules, which are very small, posses only a rudimental filament. Both light and electron microscopy data showed that this species differs from all previously described Kudoa spp. with unequal polar capsules. The molecular analysis based on 18S and 28S ribosomal deoxyribonucleic acid DNA sequence data of K. unicapsula n. sp. indicates a close relationship and thus phylogenetic clustering together with K. trifolia, a myxozoan from the same host and the same geographical location.

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“…The list of species belonging to this genus was expanded to 52, with 5 new species described recently (Moran et al 1999, Dyková et al 2002, Whipps et al 2003a,b, Cho & Kim 2003. Certain species are of economic concern to aquaculture and commercial marine fisheries because they either cause unsightly pseudocysts in the muscle or they produce postmortem myoliquefactive autolysis, also known as 'soft flesh', when the fish is stored at high temperatures (Moran et al 1999).…”

Section: Discussionmentioning

confidence: 99%

“…K. rosenbuschi is clustered with K. clupeidae and K. funduli, which are species collected from different host species of the Atlantic coast, but it is also closely related with Kudoa species collected from fishes of the Pacific coast. Nevertheless, Dyková et al (2002) suggested that it might be necessary to use other molecular approaches, due to the low bootstrap values of the phylogenetic tree.…”

Section: Discussionmentioning

confidence: 99%

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SSU rDNA analysis of Kudoa rosenbuschi (Myxosporea) from the Argentinean hake Merluccius hubbsi

Abollo¹,

Novoa²,

Figueras³

2005

Dis. Aquat. Org.

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The cloning and sequencing of the small subunit (SSU) ribosomal DNA gene from Kudoa rosenbuschi (myxosporean species associated with post-mortem myoliquefaction process in the Argentinean hake Merluccius hubbsi) is reported. The SSU rDNA was found to contain 1740 bp with a single polymorphic site with either a C or T at position 221. The sequence data obtained in this study and those known sequences of Kudoa species deposited in the GenBank were all analyzed to construct a phylogenetic tree. Nucleotide sequences showed the highest degree of identity with K. funduli, followed by K. miniauriculata, K. clupeidae and K. dianae. Phylogenetic analysis placed K. rosenbuschi in the same branch of K. clupeidae and K. funduli, and showed it to be closely related to K. dianae, K. paniformis and K. miniauriculata.

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Kudoa dianae sp. n. (Myxosporea: Multivalvulida), a new parasite of bullseye puffer, Sphoeroides annulatus (Tetraodontiformes: Tetraodontidae)

Cited by 29 publications

References 18 publications

Kudoa spp. (Myxozoa, Multivalvulida) parasitizing fish caught in Aracaju, Sergipe, Brazil

Kudoa spp. (Myxozoa, Multivalvulida) parasitizing fish caught in Aracaju, Sergipe, Brazil

Kudoa unicapsula n. sp. (Myxosporea: Kudoidae) a parasite of the Mediterranean mullets Liza ramada and L. aurata (Teleostei: Mugilidae)

SSU rDNA analysis of Kudoa rosenbuschi (Myxosporea) from the Argentinean hake Merluccius hubbsi

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