Publicação: Ultrastructure of the mature testicular vesicle of Pseudonannolene tocaiensis Fontanetti, 1996 (Diplopoda, Pseudonannolenidae)
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Pergamon-Elsevier B.V. Ltd
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The mature testicular vesicles of the species Pseudonannolene tocaiensis have three portions: a peripheral portion; a central portion that is typically secretory and between these two an intermediary portion, a lumen filled with spermatozoa. Both secretory and peripheral portions present the same type of cells. The ultrastructural analysis of the peripheral portion suggests it is involved in hormone synthesis. The secretory portion probably contributes to the production of spermatic fluid, compensating for the absence of male accessory glands in this species. (c) 2007 Elsevier Ltd. All rights reserved.
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Diplopoda, ultrastructure, testicular vesicle, millipede, testicular morphology, testis, TEM, spirostreptida
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Inglês
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Micron. Oxford: Pergamon-Elsevier B.V. Ltd, v. 39, n. 4, p. 362-366, 2008.
