On Three Digenean Trematodes (Family Bucephalidae) From Marine Teleost Fishes With New Record From the Red Sea

Hassanine, Reda M. El-Said

doi:10.21608/ejabf.2002.1748

Cited by 3 publications

(2 citation statements)

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“…As adults, the digeneans inhabit all classes of vertebrates extending from fishes to humans and the majority of digenetic families infect class Osteichthyes (bony fishes), particularly marine fishes but they are less diverse in classes Agnatha (jawless fish) and Chondrichthyes (cartilaginous fish) (Roberts and Janovy, 2009;Kostadinova and Pérez-del-Olmo, 2019). In Egypt, many studies have been done on digenetic trematodes infecting fishes and terrestrial vertebrates (Nagaty, 1956;Nagaty and Abdel Aal, 1962;Saoud et al, 1986;Hassanine, 2002;Mansour and Abd Elfatah, 2019;Mansour, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…Characters such as the shape of rhynchus, seminal vesicle, pars prostatica, site of infection in the final host, and habitat of the fishes can discriminate the five subfamilies of family Bucephalidae (Overstreet and Curran, 2002;Nolan et al, 2015). Prosorhynchinae inhabits the intestine of marine fishes (rarely freshwater) and possesses a spiny tegument, muscular or glandular infundibuliform rhynchus, elongated seminal vesicle, convoluted seminal duct and curved proximal part of pars prostatica (Madhavi and Bray, 2018) , 2002;Madhavi and Bray, 2018). More than 30 Prosorhynchus spp.…”

Section: Introductionmentioning

confidence: 99%

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Light and Scanning Electron Microscopy of Cainocreadium epinepheli (Digenea: Opecoelidae) and Prosorhynchus serrani (Digenea: Bucephalidae) From Two Economically Important Serranid Fishes from the Red Sea in Egypt

Abd Elfatah,

Gamil,

Mansour

2024

Egyptian Academic Journal of Biological Sciences, E. Medical En

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The present study recorded the adult stages of two digenetic trematodes from the anterior part of the alimentary canal and pyloric caeca of two commercially important marine bony fishes belonging to the family Serranidae from the Red Sea in Egypt. They are opecoelid Cainocreadium epinepheli (Yamaguti, 1934) Durio and Manter, 1968 and Bucephalid Prosorhynchus serrani Durio and Manter, 1968 that infect areolate grouper, Epinephelus areolatus and yellow-edged lyretail, Variola louti, respectively. The incidence of infection is reported as 55.5% (5/9) for Cainocreadium epinepheli and 81.2 % (13/16) for Prosorhynchus serrani. The body of Cainocreadium epinepheli measured 2.003-3.667 (2.809) × 0.651-1.338 (0.986) (length × maximum width) while the body of Prosorhynchus serrani measured 1.664-2.210 (1.750) × 0.225-0.358 (0.287). Cainocreadium epinepheli is characterized by the presence of smooth tegument, median gonopore in the forebody, canalicular seminal receptacle, claviform cirrus sac, long excretory vesicle reaching forebody, pre-testicular intercaecal uterus, lobed ovary, non-filamentous eggs and has an extension of vitellaria into forebody. On the other hand, Prosorhynchus serrani devoids the oral and ventral suckers but has a single caecum, midbody-located mouth, conical rhynchus, pre-testicular ovary, and elongated seminal vesicle with curved proximal part of pars prostatica. The internal organs, body regions, and their ratios concerning total body length for both species were described, measured, and compared with some of the previously described species. Finally, this study postulates that it is the first time for studying surface topography using scanning electron microscopy of both species in Egypt.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Light and Scanning Electron Microscopy of Cainocreadium epinepheli (Digenea: Opecoelidae) and Prosorhynchus serrani (Digenea: Bucephalidae) From Two Economically Important Serranid Fishes from the Red Sea in Egypt

Abd Elfatah,

Gamil,

Mansour

2024

Egyptian Academic Journal of Biological Sciences, E. Medical En

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The neuroactive substances and associated muscle system in Rhipidocotyle campanula (Digenea, Bucephalidae) from the intestine of the pike Esox lucius

Kreshchenko

Теренина

Nefedova

et al. 2020

Journal of Morphology

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We report about the muscular system and the serotonergic and FMRFamidergic components of the nervous system of the Bucephalidae trematode, Rhipidocotyle campanula, an intestinal parasite of the pike. We use immunocytochemical methods and confocal scanning laser microscopy (CLSM). The musculature is identified by histochemical staining with fluorescently labeled phalloidin. The body wall musculature of R. campanula contains three layers of muscle fibresthe outer thin circular, intermediate longitudinal and inner diagonal muscle fibres running in two opposite directions. The digestive system of R. campanula possess of a well-developed musculature: radial, longitudinal and circular muscle elements are detected in the pharynx, circular and longitudinal muscle filaments seen in the oesophagus, and longitudinal and the circular muscle fibres were found in the intestinal wall. Specific staining indicating the presence of actin muscle filaments occurs in the cirrus sac localized in the posterior body region. The frontal region of anterior attachment organ, the rhynchus, in R. campanula is represented by radial muscle fibres. The posterior part of the rhynchus comprise of radial muscles forming the organ's wall, and several strong longitudinal muscle bundles. Serotonergic and FMRFamidergic structures are detected in the central and peripheral compartments of the nervous system of R. campanula, that is, in the paired brain ganglia, the brain commissure, the longitudinal nerve cords, and connective nerve commissures. The innervations of the rhynchus, pharynx, oesophagus and distal regions of the reproductive system by the serotonergic and FMRFamidergic nervous elements are revealed. We compare our findings obtained on R. campanula with related data for other trematodes.

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Complete mitochondrial genome and phylogenetic analysis of Dollfustrema vaneyi (Trematoda: Bucephalidae)

Hu,

Ye,

Zou

et al. 2024

BMC Genomics

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Background The Bucephalidae is a large family of digenean trematodes but most previous analyses of its phylogenetic position have relied on a single mitochondrial gene or morphological features. Mitochondrial genomes (mitogenomes) remain unavailable for the entire family. To address this, we sequenced the complete mitogenome of Dollfustrema vaneyi and analyzed the phylogenetic relationships with other trematodes. Results The circular genome of Dollfustrema vaneyi spanned 14,959 bp and contained 12 protein-coding genes, 22 transfer RNA genes, 2 ribosomal RNA genes, and a major non-coding region. We used concatenated amino acid and nucleotide sequences of all 36 genes for phylogenetic analyses, conducted using MrBayes, IQ-TREE and PhyloBayes. We identified pronounced topological instability across different analyses. The addition of recently sequenced two mitogenomes for the Aspidogastrea subclass along with the use of a site-heterogeneous model stabilized the topology, particularly the positions of Azygiidae and Bucephalidae. The stabilized results indicated that Azygiidae was the closest lineage to Bucephalidae in the available dataset, and together, they clustered at the base of the Plagiorchiida. Conclusions Our study provides the first comprehensive description and annotation of the mitochondrial genome for the Bucephalidae family. The results indicate a close phylogenetic relationship between Azygiidae and Bucephalidae, and reveal their basal placement within the order Plagiorchiida. Furthermore, the inclusion of Aspidogastrea mitogenomes and the site-heterogeneous model significantly improved the topological stability. These data will provide key molecular resources for future taxonomic and phylogenetic studies of the family Bucephalidae. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-024-10740-1.

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On Three Digenean Trematodes (Family Bucephalidae) From Marine Teleost Fishes With New Record From the Red Sea

Abstract: T^h ree bucephalid species (Trematoda: Digenea: Bucephalidae) belonging to different genera were recorded and redescribed for the first time from the Red Sea fishes. These worms include:

Cited by 3 publications

References 14 publications

Light and Scanning Electron Microscopy of Cainocreadium epinepheli (Digenea: Opecoelidae) and Prosorhynchus serrani (Digenea: Bucephalidae) From Two Economically Important Serranid Fishes from the Red Sea in Egypt

Light and Scanning Electron Microscopy of Cainocreadium epinepheli (Digenea: Opecoelidae) and Prosorhynchus serrani (Digenea: Bucephalidae) From Two Economically Important Serranid Fishes from the Red Sea in Egypt

The neuroactive substances and associated muscle system in Rhipidocotyle campanula (Digenea, Bucephalidae) from the intestine of the pike Esox lucius

Complete mitochondrial genome and phylogenetic analysis of Dollfustrema vaneyi (Trematoda: Bucephalidae)

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