Ultrastructure of the tubificid acrosome (Annelida, Oligochaeta)

Jamieson B.G.M., Daddow L. and Bennett J.D. (1978) Ultrastructure of the tubificid acrosome (Annelida, Oligochaeta). Zoologica Scripta, 7 2: 115-118. doi:10.1111/j.1463-6409.1978.tb00593.x


Author Jamieson B.G.M.
Daddow L.
Bennett J.D.
Title Ultrastructure of the tubificid acrosome (Annelida, Oligochaeta)
Journal name Zoologica Scripta   Check publisher's open access policy
ISSN 0300-3256
Publication date 1978
Sub-type Article (original research)
DOI 10.1111/j.1463-6409.1978.tb00593.x
Volume 7
Issue 2
Start page 115
End page 118
Total pages 4
Subject 1103 Clinical Sciences
Abstract The later morphogenesis of the acrosome of Limnodriloides winckelmanni and Rhyacodrilus arthingtonae is compared with that in Enchytraeus and in earthworms. After superposition of the acrosome on the tip of the nucleus the manchette continues apically beyond the nucleus to ensheath the acrosomal tube. At the posterior limit of, and probably contained in, the spacious terminal primary acrosomal vesicle is an electron-dense ring. A domed protrusion into the floor of the primary vesicle is tentatively regarded as the secondary acrosome vesicle. The axial rod when first observed is attached to the vesicle complex. Later, the rod detaches and extends deeply into the acrosome tube. A membrane ensheathes the tubificid axial rod but its exact homology with the complex layers surrounding the lumbricid or megascolecid axial rod is not clear. The domed apical region of the tubificid acrosome is probably a persistence of the primary acrosome vesicle and it is deduced that the acrosome vesicle surrounding the axial rod in lumbricids and megascolecids is a product, by invagination, of the secondary acrosome vesicle only.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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Citation counts: TR Web of Science Citation Count  Cited 13 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 12 times in Scopus Article | Citations
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