{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,23]],"date-time":"2025-10-23T16:44:41Z","timestamp":1761237881221,"version":"3.37.3"},"reference-count":45,"publisher":"Walter de Gruyter GmbH","issue":"1","license":[{"start":{"date-parts":[[2012,1,1]],"date-time":"2012-01-01T00:00:00Z","timestamp":1325376000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/www.springer.com\/tdm"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2012,1,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The spermiogenesis process in Wardula capitellata begins with the formation of a differentiation zone containing two centrioles associated with striated rootlets and an intercentriolar body. Each centriole develops into a free flagellum orthogonal to a median cytoplasmic process. Later these flagella rotate and become parallel to the median cytoplasmic process, which already exhibits two electron-dense areas and spinelike bodies before its proximodistal fusion with the flagella. The final stage of the spermiogenesis is characterized by the constriction of the ring of arched membranes, giving rise to the young spermatozoon, which detaches from the residual cytoplasm. The mature spermatozoon of W. capitellata presents most of the classical characters reported in digenean spermatozoa such as two axonemes of different lengths of the 9 + \u201c1\u201d trepaxonematan pattern, nucleus, mitochondrion, two bundles of parallel cortical microtubules and granules of glycogen. However, some peculiarities such as two lateral expansions accompanied by external ornamentation of the plasma membrane and spinelike bodies characterize the mature sperm. Moreover, a new spermatological character is described for the first time, the so-called cytoplasmic ornamented buttons.<\/jats:p>","DOI":"10.2478\/s11686-012-0008-7","type":"journal-article","created":{"date-parts":[[2012,2,24]],"date-time":"2012-02-24T02:26:41Z","timestamp":1330050401000},"source":"Crossref","is-referenced-by-count":14,"title":["Spermiogenesis and ultrastructure of the spermatozoon of Wardula capitellata (Digenea, Mesometridae), an intestinal parasite of the sparid teleost Sarpa salpa in Senegal"],"prefix":"10.2478","volume":"57","author":[{"given":"Abdoulaye","family":"Bakhoum","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Papa","family":"Ndiaye","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aminata","family":"S\u00e8ne","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cheikh","family":"B\u00e2","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jordi","family":"Miquel","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"374","reference":[{"key":"ref301","doi-asserted-by":"publisher","first-page":"301","DOI":"10.1007\/s004360050047.http:\/\/dx.doi.org\/10.1007\/s004360050047","article-title":"Ultrastructure of spermiogenesis and the spermatozoon of Opecoeloides furcatus a parasite of Mullus barbatus","volume":"31","author":"Miquel","year":"2000","journal-title":"Parasitology Research"},{"key":"ref31","doi-asserted-by":"publisher","first-page":"64","DOI":"10.1016\/j.parint.2010.10.006.http:\/\/dx.doi.org\/10.1016\/j.parint.2010.10.006","article-title":"a Spermiogenesis and spermatozoon ultrastructure of Diplodiscus subclavatus an intestinal fluke of the pool frog Rana lessonae","volume":"4","author":"Bakhoum","year":"2011","journal-title":"Parasitology International"},{"key":"ref41","doi-asserted-by":"publisher","first-page":"1283","DOI":"10.1007\/s00436-010-2178-2.http:\/\/dx.doi.org\/10.1007\/s00436-010-2178-2","article-title":"Spermatological characters of the digenean Rubenstrema exasperatum","volume":"5","author":"Bakhoum","year":"2011","journal-title":"Parasitology Research"},{"key":"ref241","first-page":"255","article-title":"Ultrastructure of spermiogenesis and the spermatozoon of Helicometra fasciata a parasite of Labrus merula","volume":"25","author":"Levron","year":"2003","journal-title":"Acta Parasitologica"},{"key":"ref211","doi-asserted-by":"publisher","first-page":"358","DOI":"10.1016\/j.parint.2010.04.008.http:\/\/dx.doi.org\/10.1016\/j.parint.2010.04.008","article-title":"Spermiogenesis and spermatozoon ultrastructure of the digenean Neoapocreadium chabaudi a parasite of Ballistes capriscus","volume":"22","author":"Kacem","year":"2010","journal-title":"Parasitology International"},{"key":"ref371","doi-asserted-by":"publisher","first-page":"1295","DOI":"10.1007\/s00436-007-0636-2.http:\/\/dx.doi.org\/10.1007\/s00436-007-0636-2","article-title":"Ultrastructural study of the spermatozoon of Nicolla testiobliquum parasite of brown trout Salmo trutta","volume":"38","author":"Quilichini","year":"2007","journal-title":"Parasitology Research"},{"key":"ref121","first-page":"2","article-title":"Larval trematodes from the Apalachee Bay area Florida with checklist of known marine cercariae arranged in a key to their superfamilies Tulane Studies in","volume":"13","author":"Holliman","year":"1961","journal-title":"Zoology"},{"key":"ref01","doi-asserted-by":"publisher","first-page":"38","DOI":"10.1007\/s00436-005-1318-6.http:\/\/dx.doi.org\/10.1007\/s00436-005-1318-6","article-title":"Dicrocoelium hospes spermiogenesis mature spermatozoon and ultrastructural comparative study","volume":"1","author":"Agostini","year":"2005","journal-title":"Parasitology Research"},{"key":"ref451","doi-asserted-by":"publisher","first-page":"9","DOI":"10.2478\/s11686-008-0006-y.http:\/\/dx.doi.org\/10.2478\/s11686-008-0006-y","article-title":"Spermiogenesis and sperm ultrastructure of Carmyerius endopapillatus a parasite of Bos taurus in Senegal","volume":"46","author":"Seck","year":"2008","journal-title":"Acta Parasitologica"},{"key":"ref361","doi-asserted-by":"publisher","first-page":"22","DOI":"10.1016\/j.parint.2009.06.007.http:\/\/dx.doi.org\/10.1016\/j.parint.2009.06.007","article-title":"Spermatozoon ultrastructure of Aponurus laguncula a parasite of Aluterus monoceros","volume":"37","author":"Quilichini","year":"2010","journal-title":"Parasitology International"},{"key":"ref21","first-page":"32","article-title":"Spermatozoon ultrastructure of Euryhelmis squamula an intestinal parasite of Mustela vison Ibero - 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