File:Parasite180130-Figure 3 - spermatozoa of Bucephalidae.png

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English: Figure 3 of paper

Mature spermatozoon of Rhipidocotyle khalili.

  • (a)–(f) Cross-sections in the anterior region of the spermatozoon showing the external ornamentation of the plasma membrane, a submembranous layer of cortical microtubules, the lateral expansion and a progressive appearance of the two axonemes.
  • (g)–(m) Consecutives cross-sections in region II of the spermatozoon with only two axonemes and cortical microtubules (g)–(h) More posteriorly, disorganization and disappearance of the first axoneme (i)–(k) the progressive reduction of the number of cortical microtubules and the appearance of the mitochondrion (l) then the nucleus (M).
  • (n)–(r) Consecutive cross-sections in the posterior region of the spermatozoon showing one axoneme, mitochondrion, nucleus and cortical microtubules (n); posterior extremity of the second axoneme, mitochondrion and nucleus (o); disappearance of the mitochondrion then of the axoneme 2 (p)–(q) Cross-section in the posterior extremity of the spermatozoon, showing only the nucleus (r).
Aae1 = anterior extremity of the first axoneme, Aae2 = anterior extremity of the second axoneme, Ax1 = first axoneme, Ax2 = second axoneme, Ax = axoneme, Cm = cortical microtubules, Eo = external ornamentation, Le = lateral expansion, M = mitochondrion, Mi = microtubule, N = Nucleus, Pae1 = posterior extremity of the first axoneme, Pae2 = posterior extremity of the second axoneme. Scale Bars = 0.2 μm.
Date
Source (2018). "Ultrastructure of mature spermatozoa of three Bucephalidae (Prosorhynchus longisaccatus, Rhipidocotyle khalili and Bucephalus margaritae) and phylogenetic implications". Parasite 25: 65. DOI:10.1051/parasite/2018065. ISSN 1776-1042.
Author Papa Ibnou Ndiaye, Bernard Marchand, Cheikh Tidiane Bâ, Jean-Lou Justine, Rodney A. Bray and Yann Quilichini

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This file was published in the scientific journal Parasite. Their website states that all content of the journal including and after 2013 is published under the Creative Commons Attribution 4.0 license.

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