Ultrastructure and cytochemistry of the mature spermatozoon of Khawia armeniaca (Cholodkovsky, 1915) (Caryophyllidea: Lytocestidae), a parasite of Capoeta capoeta sevangi (De Filippi, 1865) (Teleostei, Cyprinidae)
The mature spermatozoon of Khawia armeniaca, a monozoic caryophyllidean parasite of templar fish Capoeta capoeta sevangi (De Filippi, 1865) from the Lake Sevan, Armenia, has been studied using transmission electron microscopy and cytochemical technique of Thiéry (1967) for the first time. The mature...
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| Format: | Article |
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Sciendo
2020-11-01
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| Series: | Helminthologia |
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| Online Access: | https://doi.org/10.2478/helm-2020-0040 |
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| author | Matoušková M. Bruňanská M. Nebesářová J. Poddubnaya L. G. |
| author_facet | Matoušková M. Bruňanská M. Nebesářová J. Poddubnaya L. G. |
| author_sort | Matoušková M. |
| collection | DOAJ |
| description | The mature spermatozoon of Khawia armeniaca, a monozoic caryophyllidean parasite of templar fish Capoeta capoeta sevangi (De Filippi, 1865) from the Lake Sevan, Armenia, has been studied using transmission electron microscopy and cytochemical technique of Thiéry (1967) for the first time. The mature spermatozoon of K. armeniaca consists of a single axoneme with the 9+‘1’ trepaxonematan structure, cortical microtubules and nucleus which are situated parallel to the longitudinal axis of the spermatozoon, and a moderately electrondense cytoplasm with glycogen particles. The cortical microtubules are arranged in one continuous semicircle beneath the plasma membrane in Region II and anterior part of Region III of the mature spermatozoon. The two opposite rows of cortical microtubules are observed in the remaining nuclear and at the beginning of the postnuclear part (Regions III, IV) of the male gamete The number of cortical microtubules is remarkably variable in the spermatozoa of various Khawia species. K. armeniaca exhibits the highest number of cortical microtubules in comparison with K. sinensis and K. rossittensis. Glycogen was detected in the cytoplasm of prenuclear (II), nuclear (III) and postnuclear (IV) regions with different ultrastructural organization of the mature spermatozoon of K. armeniaca. Variations of sperm ultrastructural characters within caryophyllideans and other cestodes are discussed. |
| first_indexed | 2024-03-12T09:24:37Z |
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| id | doaj.art-c101c8f8e7984529bb764fb776616a06 |
| institution | Directory Open Access Journal |
| issn | 1336-9083 |
| language | English |
| last_indexed | 2024-03-12T09:24:37Z |
| publishDate | 2020-11-01 |
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| series | Helminthologia |
| spelling | doaj.art-c101c8f8e7984529bb764fb776616a062023-09-02T14:21:52ZengSciendoHelminthologia1336-90832020-11-0157435336010.2478/helm-2020-0040helm-2020-0040Ultrastructure and cytochemistry of the mature spermatozoon of Khawia armeniaca (Cholodkovsky, 1915) (Caryophyllidea: Lytocestidae), a parasite of Capoeta capoeta sevangi (De Filippi, 1865) (Teleostei, Cyprinidae)Matoušková M.0Bruňanská M.1Nebesářová J.2Poddubnaya L. G.3Institute of Parasitology, Slovak Academy of Sciences, Hlinkova 3, 040 01Košice, Slovak RepublicInstitute of Parasitology, Slovak Academy of Sciences, Hlinkova 3, 040 01Košice, Slovak RepublicInstitute of Parasitology, Biology Centre of the Czech Academy of Sciences, Branišovská 31, 370 05České Budějovice, Czech RepublicInstitute of Biology of Inland Waters, Russian Academy of Sciences, Borok, Yaroslavl Region 152742, RussiaThe mature spermatozoon of Khawia armeniaca, a monozoic caryophyllidean parasite of templar fish Capoeta capoeta sevangi (De Filippi, 1865) from the Lake Sevan, Armenia, has been studied using transmission electron microscopy and cytochemical technique of Thiéry (1967) for the first time. The mature spermatozoon of K. armeniaca consists of a single axoneme with the 9+‘1’ trepaxonematan structure, cortical microtubules and nucleus which are situated parallel to the longitudinal axis of the spermatozoon, and a moderately electrondense cytoplasm with glycogen particles. The cortical microtubules are arranged in one continuous semicircle beneath the plasma membrane in Region II and anterior part of Region III of the mature spermatozoon. The two opposite rows of cortical microtubules are observed in the remaining nuclear and at the beginning of the postnuclear part (Regions III, IV) of the male gamete The number of cortical microtubules is remarkably variable in the spermatozoa of various Khawia species. K. armeniaca exhibits the highest number of cortical microtubules in comparison with K. sinensis and K. rossittensis. Glycogen was detected in the cytoplasm of prenuclear (II), nuclear (III) and postnuclear (IV) regions with different ultrastructural organization of the mature spermatozoon of K. armeniaca. Variations of sperm ultrastructural characters within caryophyllideans and other cestodes are discussed.https://doi.org/10.2478/helm-2020-0040cestodacaryophyllideakhawia armeniacaspermatozoonultrastructure |
| spellingShingle | Matoušková M. Bruňanská M. Nebesářová J. Poddubnaya L. G. Ultrastructure and cytochemistry of the mature spermatozoon of Khawia armeniaca (Cholodkovsky, 1915) (Caryophyllidea: Lytocestidae), a parasite of Capoeta capoeta sevangi (De Filippi, 1865) (Teleostei, Cyprinidae) Helminthologia cestoda caryophyllidea khawia armeniaca spermatozoon ultrastructure |
| title | Ultrastructure and cytochemistry of the mature spermatozoon of Khawia armeniaca (Cholodkovsky, 1915) (Caryophyllidea: Lytocestidae), a parasite of Capoeta capoeta sevangi (De Filippi, 1865) (Teleostei, Cyprinidae) |
| title_full | Ultrastructure and cytochemistry of the mature spermatozoon of Khawia armeniaca (Cholodkovsky, 1915) (Caryophyllidea: Lytocestidae), a parasite of Capoeta capoeta sevangi (De Filippi, 1865) (Teleostei, Cyprinidae) |
| title_fullStr | Ultrastructure and cytochemistry of the mature spermatozoon of Khawia armeniaca (Cholodkovsky, 1915) (Caryophyllidea: Lytocestidae), a parasite of Capoeta capoeta sevangi (De Filippi, 1865) (Teleostei, Cyprinidae) |
| title_full_unstemmed | Ultrastructure and cytochemistry of the mature spermatozoon of Khawia armeniaca (Cholodkovsky, 1915) (Caryophyllidea: Lytocestidae), a parasite of Capoeta capoeta sevangi (De Filippi, 1865) (Teleostei, Cyprinidae) |
| title_short | Ultrastructure and cytochemistry of the mature spermatozoon of Khawia armeniaca (Cholodkovsky, 1915) (Caryophyllidea: Lytocestidae), a parasite of Capoeta capoeta sevangi (De Filippi, 1865) (Teleostei, Cyprinidae) |
| title_sort | ultrastructure and cytochemistry of the mature spermatozoon of khawia armeniaca cholodkovsky 1915 caryophyllidea lytocestidae a parasite of capoeta capoeta sevangi de filippi 1865 teleostei cyprinidae |
| topic | cestoda caryophyllidea khawia armeniaca spermatozoon ultrastructure |
| url | https://doi.org/10.2478/helm-2020-0040 |
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