Premium
The neck region of the spermatozoon of Discus rotundatus (Müller) (Pulmonata, Stylommatophora)
Author(s) -
Maxwell W. L.
Publication year - 1976
Publication title -
journal of morphology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.652
H-Index - 74
eISSN - 1097-4687
pISSN - 0362-2525
DOI - 10.1002/jmor.1051500203
Subject(s) - axoneme , biology , spermatozoon , anatomy , centriole , ultrastructure , paleontology , flagellum , bacteria
The neck region of the mature spermatozoon of Discus rotundatus is described. No evidence for a centriole or centriolar derivative is obtained. Nine striated coarse fibres and the two central fibres of the axoneme extend into the base of the implantation fossa. The axonemal doublet system is disrupted in the neck region. There are two fibrous accessory structures located between the central doublet and the striated coarse fibres.