Ultrastructural organisation of the spermatozoon of Allopodocotyle tunisiensis Derbel and Neifar, 2009 (Digenea, Opecoelidae), an intestinal parasite of Solea aegyptiaca Chabanaud, 1927 (Teleostei, Soleidae).

@article{Kacem2019UltrastructuralOO,
  title={Ultrastructural organisation of the spermatozoon of Allopodocotyle tunisiensis Derbel and Neifar, 2009 (Digenea, Opecoelidae), an intestinal parasite of Solea aegyptiaca Chabanaud, 1927 (Teleostei, Soleidae).},
  author={Hichem Kacem and Papa Mbagnick Diagne and Jordi Miquel},
  journal={Tissue \& cell},
  year={2019},
  volume={57},
  pages={
          1-7
        }
}
The ultrastructure of the spermatozoon of Allopodocotyle tunisiensis (Digenea, Opecoelidae), an intestinal parasite of Solea aegyptiaca (Teleostei, Soleidae), is described by transmission electron microscopy (TEM). The mature spermatozoon is a filiform cell that exhibits two axonemes of different length with the 9+'1' pattern of trepaxonematan Platyhelminthes. In the anterior spermatozoon extremity, cortical microtubules are absent. They appear after the disappearance of an anterior electron… Expand
5 Citations
Spermatological characteristics of Sclerodistomoides pacificus (Digenea, Sclerodistomoididae) a parasite of the flying fish Cheilopogon pinnatibarbatus (Teleostei, Exocoetidae).
TLDR
The first ultrastructural data of the mature spermatozoon of a species from the genus Sclerodistomoides is presented, describing for the first time a moniliform mitochondrion in the Hemiuroidea. Expand
Ultrastructure of the spermatozoon of Labracetabulum gephyroberici (Digenea, Opecoelidae) intestinal parasite of Gephyroberyx darwinii (Teleostei, Trachichtyidae) in Senegal
TLDR
This work is the first ultrastructural study of spermatozoa in a species of Digenea belonging to the genus Labracetabulum gephyroberici, and the morphology of the posterior extremity corresponds to the Opecoelidean type described by Quilichini et al. Expand
Sperm ultrastructure of Prodistomum polonii (Digenea, Lepocreadioidea), an intestinal parasite of the Atlantic horse mackerel, Trachurus trachurus (Teleostei, Carangidae), from the Gulf of Gabes, Mediterranean Sea
TLDR
The study reveals that the mature sperm cell of P. polonii is a filiform cell, which is tapered at both extremities, and presents a Quilichini et al.'s type 2 spermatozoon. Expand
Sperm characteristics in the digenean Diplodiscus amphichrus (Paramphistomoidea, Diplodiscidae), a parasite of the Chinese edible frog Hoplobatrachus rugulosus
TLDR
Two characteristics of the male gamete of D. amphichrus were found for the first time in a digenean: the appearance of the initial part of the lateral expansion before the axonemes in the anterior extremity and the separation between the second axoneme and the nucleus in the posterior tip. Expand
A comparative study of the ultrastructural characteristics of the mature spermatozoa of two fellodistomids Tergestia clonacantha and T. laticollis and contribution to the phylogenetic knowledge of the Gymnophalloidea
TLDR
It is confirmed that ultrastructural characters of the mature spermatozoon are useful tools for the phylogenetic analysis of the Digenea. Expand

References

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The Opecoelidae sperm model and its contribution to phylogeny: spermatozoon ultrastructural particularities of Allopodocotyle pedicellata (Plagioporinae, Digenea, Platyhelminthes)
TLDR
The sperm model is established for the Opecoelidae and it is compared to mature spermatozoa of other digeneans, particularly those belonging to the family Opistholebetidae and the superfamilies Allocreadioida and Brachycladioidea or their related sister groups. Expand
Ultrastructure of the spermatozoon of Macvicaria obovata (Digenea: Opecoelidae), a parasite of Sparus aurata (Pisces: Teleostei) from the Gulf of Gabès, Mediterranean Sea
TLDR
New data is provided on the mature male gamete of M. obovata that may be useful for the understanding of digenean relationships and phylogenetic studies. Expand
Ultrastructural study of the spermatozoon of Hemiurus appendiculatus (Digenea, Hemiuroidea, Hemiuridae), a parasite of Boops boops (Pisces, Teleostei, Sparidae) off Senegal.
TLDR
This study shows for the second time in a digenean spermatozoon the presence of microtubules of the second axoneme associated each in a short length with an external ornamentation, and reveals for the first time the existence in the Hemiuroidea of anAxoneme that begins to disrupt before reaching the front end of the mitochondrion. Expand
Ultrastructure of the spermatozoon of Holorchis micracanthum (Digenea: Lepocreadiidae), an intestinal parasite of Plectorhinchus mediterraneus (Pisces, Teleostei) in Senegal
TLDR
The mature Holorchis micracanthum spermatozoon exhibits an apical cone of electron-dense material forming a lateral extension, extramembranar ornamentations, and two fields of cortical microtubules, delimited by attachment zones, which are shown for the first time in a species of the Lepocreadiidae. Expand
Ultrastructural study of the spermatozoon of Pronoprymna ventricosa (Digenea, Baccigerinae), parasite of the twaite shad Alosa fallax Lacepede (Pisces, Teleostei)
TLDR
The ultrastructural organisation of the spermatozoon of a Digenea Baccigerinae Pronoprymna ventricosa is described and a separation in two groups of the digenean spermatozoa is proposed in relation to the localisation of the external ornamentations. Expand
The ultrastructural characters of the mature spermatozoon of Opechona bacillaris (Molin, 1859) (Digenea, Lepocreadiidae) a parasite of Scomber colias Gmelin, 1789 (Scombridae) off the coast of Dakar (Senegal)
TLDR
The ultrastructure of the mature spermatozoon of Opechona bacillaris, a digenean belonging to the family Lepocreadiidae, is presented and for the first time spinelike bodies associated with the external ornamentation of the plasma membrane and two mitochondria are described. Expand
Ultrastructural study of the spermatozoon of Nicolla testiobliquum (Digenea, Opecoelidae) parasite of brown trout Salmo trutta (Pisces, Teleostei)
TLDR
It appears that the organisation of the posterior part of the spermatozoon, the disposition of cortical microtubules and external ornamentation associated with spine-like bodies could be interesting elements for phylogeny. Expand
SPERMIOGENESIS AND SPERMATOZOON ULTRASTRUCTURE OF NICOLLA WISNIEWSKII (DIGENEA: OPECOELIDAE), AN INTESTINAL PARASITE OF BROWN TROUT SALMO TRUTTA (PISCES: TELEOSTEI)
TLDR
It appears that the number of cortical microtubules and their localization in the spermatozoon may be an interesting feature of their phylogeny. Expand
Spermatozoon Ultrastructure of Gyliauchen sp. (Digenea: Gyliauchenidae), an Intestinal Parasite of Siganus fuscescens (Pisces: Teleostei)
TLDR
The results show that many ultrastructural characters are variable within this superfamily and could be useful for phylogeny and compared to the digenean spermatology literature. Expand
Ultrastructural study of the spermatozoon of Heterolebes maculosus (Digenea, Opistholebetidae), a parasite of the porcupinefish Diodon hystrix (Pisces, Teleostei).
TLDR
The similarity between the spermatozoon of the Opistholebetidae H. maculosus and Opecoelidae enables us to confirm that these two families are closely related. Expand
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