Journal ArticleDOI
Spermiogenesis and spermatozoan ultrastructure in Polymorphus minutus (Acanthocephala).
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This article is published in Parasitology.The article was published on 1971-06-01. It has received 30 citations till now.read more
Citations
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Book ChapterDOI
Electron microscope studies on spermiogenesis in various animal species.
TL;DR: This chapter presents comprehensive and detailed fine-structural data on the spermiogenesis of several animals as revealed by electron microscopy and discusses the modification and function of several organelles and nuclear components in developing spermatids from the phylogenetic standpoint.
Journal ArticleDOI
Ultrastructure of spermatozoon and spermatogenesis in Maritrema linguilla (Digenea: Microphallidae)
Hend T. Hendow,B.L. James +1 more
TL;DR: The fully formed spermatozoon consists of three regions, namely, the head containing an elongated nucleus with condensed chromatin, a single small mitochondrion and the anterior extremity of an elongate mitochondrions, surrounded by 2–9 microtubules and two 9 + “1” axonemes.
Book ChapterDOI
Aspects of Acanthocephalan Reproduction
V.R. Parshad,D. W. T. Crompton +1 more
TL;DR: This chapter focuses on the current knowledge of the ways one population of acanthocephalan parents develops from the preceding population, and reviews the relevant literature and discusses many interesting aspects of acAnthocePhalan reproductive biology.
Journal ArticleDOI
Functional aspects of the intercentriolar body in the spermiogenesis of Nematoplana coelogynoporoides (Plathelminthes, Proseriata)
TL;DR: The intercentriolar body in the biciliary spermatids of Nematoplana coelogynoporoides and its changes during spermiogenesis are described.
References
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Journal ArticleDOI
A negative staining method for high resolution electron microscopy of viruses.
S. Brenner,R.W. Horne +1 more
TL;DR: A simple technique has been developed for the study of the external form and structure of virus particles by mixing virus preparations with 1% phosphotungstic acid adjusted to pH 7.5 and spraying directly onto electron microscope supporting films made from evaporated carbon.
Journal ArticleDOI
On flagellar structure in certain flagellates.
I. R. Gibbons,A. V. Grimstone +1 more
TL;DR: The structure of the flagella, basal bodies, and some of the associated fibre systems in three genera of complex flagellates, Trichonymspha, Pseudotrichonympha, and Holomastigotoides is described.
Journal ArticleDOI
Dynein: A Protein with Adenosine Triphosphatase Activity from Cilia.
I. R. Gibbons,A. J. Rowe +1 more
TL;DR: The adenosine triphosphatase protein from cilia of Tetrahymena pyriformis consists of 30S and 14S fractions and the enzymatic properties of the two fractions are similar.
Journal ArticleDOI
The occurrence of intercellular bridges in groups of cells exhibiting synchronous differentiation.
TL;DR: The discovery of intercellular bridges in the two unrelated tissues discussed here suggests that a similar syncytial relationship may be found elsewhere in nature where groups of cells of common origin differentiate synchronously.