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Collyricloides massanae (Digenea, Collyriclidae): spermatozoon ultrastructure and phylogenetic importance.

Bakhoum AJ, Quilichini Y, Miquel J, Feliu C, Bâ CT, Marchand B - Parasite (2014)

Bottom Line: The spermatological characteristics of Collyricloides massanae (Digenea: Collyriclidae), a parasite of Apodemus sylvaticus caught in France, were studied by means of transmission electron microscopy.The ultrastructural criteria described in C. massanae such as the morphology of both anterior and posterior spermatozoon extremities, the association "external ornamentation+cortical microtubules", the type 2 of external ornamentation and the spine-like bodies would allow us to bring closer the Collyriclidae to Microphalloidea.However, further ultrastructural and molecular studies are needed particularly in the unexplored taxa in order to fully resolve the phylogenetic position of the Collyriclidae.

View Article: PubMed Central - PubMed

Affiliation: CNRS - University of Corsica, UMR SPE 6134, SERME "Service d'Étude et de Recherche en Microscopie Électronique", 20250 Corte, France - Laboratory of Evolutionary Biology, Ecology and Management of Ecosystems, Faculty of Sciences and Techniques, Cheikh Anta Diop University of Dakar, BP 5055, Dakar, Senegal.

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Schematic reconstruction of ultrastructural organisation of the mature spermatozoon of Collyricloides massanae. ASE, anterior spermatozoon extremity; Ax1, first axoneme; Ax2, second axoneme; AZ, attachment zones; C1, centriole of the first axoneme; C2, centriole of the second axoneme; CM, cortical microtubules; CS, cytoplasmic stalk; D, doublets; EO, external ornamentation of the plasma membrane; G, granules of glycogen; M, mitochondrion; N, nucleus; PM, plasma membrane; PSE, posterior spermatozoon extremity; SB, spine-like bodies.
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Figure 4: Schematic reconstruction of ultrastructural organisation of the mature spermatozoon of Collyricloides massanae. ASE, anterior spermatozoon extremity; Ax1, first axoneme; Ax2, second axoneme; AZ, attachment zones; C1, centriole of the first axoneme; C2, centriole of the second axoneme; CM, cortical microtubules; CS, cytoplasmic stalk; D, doublets; EO, external ornamentation of the plasma membrane; G, granules of glycogen; M, mitochondrion; N, nucleus; PM, plasma membrane; PSE, posterior spermatozoon extremity; SB, spine-like bodies.

Mentions: From examination of cross- and longitudinal sections in the seminal vesicle of Collyricloides massanae, four distinctive regions are evidenced in the mature spermatozoon.


Collyricloides massanae (Digenea, Collyriclidae): spermatozoon ultrastructure and phylogenetic importance.

Bakhoum AJ, Quilichini Y, Miquel J, Feliu C, Bâ CT, Marchand B - Parasite (2014)

Schematic reconstruction of ultrastructural organisation of the mature spermatozoon of Collyricloides massanae. ASE, anterior spermatozoon extremity; Ax1, first axoneme; Ax2, second axoneme; AZ, attachment zones; C1, centriole of the first axoneme; C2, centriole of the second axoneme; CM, cortical microtubules; CS, cytoplasmic stalk; D, doublets; EO, external ornamentation of the plasma membrane; G, granules of glycogen; M, mitochondrion; N, nucleus; PM, plasma membrane; PSE, posterior spermatozoon extremity; SB, spine-like bodies.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4230190&req=5

Figure 4: Schematic reconstruction of ultrastructural organisation of the mature spermatozoon of Collyricloides massanae. ASE, anterior spermatozoon extremity; Ax1, first axoneme; Ax2, second axoneme; AZ, attachment zones; C1, centriole of the first axoneme; C2, centriole of the second axoneme; CM, cortical microtubules; CS, cytoplasmic stalk; D, doublets; EO, external ornamentation of the plasma membrane; G, granules of glycogen; M, mitochondrion; N, nucleus; PM, plasma membrane; PSE, posterior spermatozoon extremity; SB, spine-like bodies.
Mentions: From examination of cross- and longitudinal sections in the seminal vesicle of Collyricloides massanae, four distinctive regions are evidenced in the mature spermatozoon.

Bottom Line: The spermatological characteristics of Collyricloides massanae (Digenea: Collyriclidae), a parasite of Apodemus sylvaticus caught in France, were studied by means of transmission electron microscopy.The ultrastructural criteria described in C. massanae such as the morphology of both anterior and posterior spermatozoon extremities, the association "external ornamentation+cortical microtubules", the type 2 of external ornamentation and the spine-like bodies would allow us to bring closer the Collyriclidae to Microphalloidea.However, further ultrastructural and molecular studies are needed particularly in the unexplored taxa in order to fully resolve the phylogenetic position of the Collyriclidae.

View Article: PubMed Central - PubMed

Affiliation: CNRS - University of Corsica, UMR SPE 6134, SERME "Service d'Étude et de Recherche en Microscopie Électronique", 20250 Corte, France - Laboratory of Evolutionary Biology, Ecology and Management of Ecosystems, Faculty of Sciences and Techniques, Cheikh Anta Diop University of Dakar, BP 5055, Dakar, Senegal.

Show MeSH
Related in: MedlinePlus