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Ultrastructural details of spermdegeneration in the ingestive gland of Bolinus brandaris (Gastropoda, Prosobranchia)

AuthorsAmor, María José; Ramón, Montserrat ; Durfort, Mercè
KeywordsFemale appartus
Ingestive gland
Spermatozoa degeneration
Issue DateJul-2005
CitationComparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology 141(3,Supplement): S208 (2005)
AbstractThe twisted ducts making up the ingestive gland of Bolinus brandaris are internally lined by a mucosa of prismatic monostratified and ciliated epithelia with large microvilli arranged in rows. This gland performs two functions: oocyte fecundation, and the enzymatic destruction and subsequent resorbption of non-functional spermatozoa. Therefore, these cell structures are related and preserve the optimal conditions for fecundation and enzyme synthesis. The two types of sperm in this species (eupyrene and apyrene) as well as inmature forms, are seen along the duct. These spermatozoa invaginate into the ingestive gland cells, whose enzymatic secretions are spilled over the sperm cells, leading to an initial phase of degradation because plasma membranes are communicated. Not all spermatozoa follow the same route in the degeneration process. In some cases, the axonema degenerates first, while in other cases, fusion of the cryoplasm preceeds degeneration of the axonema
DescriptionAbstracts of the Annual Main Meeting of the Society for Experimental Biology, A2 Genomics in Aquaculture, 11-15 July 2005, Universitat Autonoma de Barcelona, Barcelona, Spain.-- 1 page
Publisher version (URL)https://dx.doi.org/10.1016/j.cbpb.2005.05.016
Identifiersissn: 1095-6433
doi: 10.1016/j.cbpb.2005.05.016
Appears in Collections:(ICM) Comunicaciones congresos
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