Characterization of Myxidium spinibarba sp. nov. (Cnidaria, Myxosporea, Myxidiidae) from Spinibarbus sinensis (Bleeker, 1871) in Chongqing China

Chen, Wei; Yang, Chengzhong; Zhao, Yuanjun

doi:10.1007/s00436-020-06644-0

Cited by 5 publications

(2 citation statements)

References 29 publications

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“…Therefore, these findings do not support a phylogenetic separation between Henneguya spp. and other closely related genera, despite their morphological differences (Chen et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

Characterizing Two New Henneguya Species in the Respiratory Organs of African Sharptooth Catfish

Emeish,

Fawaz,

Hussein

et al. 2023

Microscopy and Microanalysis

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Henneguya species are myxozoans, a suborder of Cnidaria, which can affect the gills and extrarespiratory organs of the African sharptooth catfish, Clarias gariepinus. This research describes natural infection-induced histological alterations caused by the Henneguya species present. The Henneguya species were also identified molecularly using DNA sequenced from infected tissue cysts, and phylogenetically analyzed. Clinical investigations revealed cyst-like nodules on the fish gill filaments and extrarespiratory organs. Within a milky fluid inside the cysts were several Henneguya-like spores. Henneguya sp. infested 27.5% of the fish, with the highest prevalence in the gills compared to the extrarespiratory organs. The Henneguya species parasitized the gill and the dendritic tissues, resulting in histopathological characteristics. The plasmodia's developmental stages resulted in destructive damage which manifested as marked necrosis, which was replaced by a focal aggregation of inflammatory cells. Amplification of the 18S ribosomal DNA from the fish parasites was followed by sequencing, which confirmed their identities as new species Henneguya qenabranchiae n. sp. and Henneguya qenasuprabranchiae n. sp. with 99.53 and 99.64% identities, respectively, to Henneguya sp. 1 HS-2015. The two C. gariepinus myxozoans shared some characteristics based on morphologic and phylogenetic analysis as previously published, where it was proposed that they were a sister lineage to Henneguya species in Egypt, and it is now proposed that they are new species.

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“…Therefore, these findings do not support a phylogenetic separation between Henneguya spp. and other closely related genera, despite their morphological differences (Chen et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

Characterizing Two New Henneguya Species in the Respiratory Organs of African Sharptooth Catfish

Emeish,

Fawaz,

Hussein

et al. 2023

Microscopy and Microanalysis

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“…This could be due to the low presence of the host at the collection site or its ecology, which makes collecting it more difficult than other species. Despite this, several studies describe new myxozoans from a single infected host (Hartigan et al 2012a;Chen et al 2020;Mathews et al 2021).…”

Section: Discussionmentioning

confidence: 99%

Description of Cystodiscus elachistocleis sp. nov. (Cnidaria: Myxosporea) parasitizing the gallbladder of Elachistocleis cesarii from Brazil, based on morphological and molecular analyses

Vieira

Úngari

Alcântara

et al. 2021

EJT

668

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Numerous pseudoplasmodia containing myxospores belonging to the genus Cystodiscus were found in the gallbladder of Elachistocleis cesarii from Mato Grosso State, Brazil. Herein, we describe Cystodiscus elachistocleis sp. nov., using morphological and small subunit ribosomal DNA sequences. The mature myxospores were ellipsoid to ovoid, measuring in average 10.6 (9.8–11.2) μm in length and 6.2 (5.6–6.6) μm in width. Polar capsules were pyriform and equal in size measuring in average 3.6 (2.8–4.3) μm in length and 2.6 (2.2–3.1) μm in width. Polar filaments had 2–4 coils. The myxospores had 3–5 transverse ridges. The phylogenetic analysis showed Cystodiscus elachistocleis sp. nov. as a sister species of Cystodiscus cf. immersus 1, in a subclade formed by species that parasitize the amphibians gallbladder. This is the first species of Cystodiscus described parasitizing a species of Elachistocleis and the third species of Cystodiscus described in Brazil.

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A new myxosporean species, Henneguya lata n. sp. (Myxozoa: Myxobolidae), from the gills of yellowfin seabream Acanthopagrus latus (Perciformes: Sparidae) in the Gulf of Tonkin, Vietnam

et al. 2021

View full text Add to dashboard Cite

Characterization of Myxidium spinibarba sp. nov. (Cnidaria, Myxosporea, Myxidiidae) from Spinibarbus sinensis (Bleeker, 1871) in Chongqing China

Cited by 5 publications

References 29 publications

Characterizing Two New Henneguya Species in the Respiratory Organs of African Sharptooth Catfish

Characterizing Two New Henneguya Species in the Respiratory Organs of African Sharptooth Catfish

Description of Cystodiscus elachistocleis sp. nov. (Cnidaria: Myxosporea) parasitizing the gallbladder of Elachistocleis cesarii from Brazil, based on morphological and molecular analyses

A new myxosporean species, Henneguya lata n. sp. (Myxozoa: Myxobolidae), from the gills of yellowfin seabream Acanthopagrus latus (Perciformes: Sparidae) in the Gulf of Tonkin, Vietnam

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