axoneme


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axoneme

[′ak·sə‚nēm]
(cell and molecular biology)
A bundle of fibrils enclosed by a membrane that is continuous with the plasma membrane.
References in periodicals archive ?
Effects on the motility of intact spermatozoa and on sperm axonemes.
Since the distal centriole gave rise to the sperm axoneme during spermiogenesis, it is logical to suppose that the proximal centriole that is inherited by the embryo could cause aberrant mitosis as both are derived from the same mother centriole in spermatids.
It is strongly elongated and turns several times around the axoneme (Fig.
Genetic and biochemical studies in Chlamydomonas have revealed that a protein in the Chlamydomonas flagellar axoneme, radial spoke protein 3 (Rsp3), is an A-kinase anchoring protein (AKAP).
melanogaster spermtail axoneme requires a male-specific form of [beta]-tubulin, [beta]2 tubulin, to support their exceptionally long spermtails.
Moreover, changes in the axoneme, basal bodies, and ciliary rootlets are associated with dyskinesia and mucostasis.
Microtubular axoneme organization in motile cilia follows a 9 + 2 assembly, where 9 doublets of microtubules surround a central pair; this arrangement allows specific movement patterns that can lead fluids toward a single direction in vivo, by the interacting sliding of the different constitutive parts of doublets.
In addition ROS may also affect the sperm axoneme, inhibit mitochondrial function and affect the synthesis of DNA, RNA and proteins.
They wrap tightly in a helical fashion around the axoneme and outer dense fibers of the flagellum and can therefore provide ATP to the dynein ATPase in the midpiece axoneme (Fawcett, 1975; Phillips, 1977).
The latter exhibits the typical axoneme structure of nine paired peripheral microtubules and two central ones.