axoneme

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axoneme

 [ak´so-nēm]
the central core of a cilium or flagellum, consisting of two central fibrils surrounded by nine peripheral fibrils.

ax·o·neme

(ak'sō-nēm),
1. The central thread running in the axis of the chromosome.
2. Synonym(s): axial filament
3. The distinctive array of microtubules in the core of eukaryotic cilia and flagella comprising a central pair surrounded by a sheaf of nine doublet microtubules.
[axo- + G. nēma, a thread]

axoneme

/ax·o·neme/ (ak´so-nēm) the central core of a cilium or flagellum, consisting of a central pair of filaments surrounded by nine other pairs.

axoneme

(ăk′sə-nēm′)
n.
A bundle of microtubules and associated proteins that makes up the core of a cilium or flagellum, consisting of nine pairs of microtubules arranged around two single microtubules.

ax′o·ne′mal adj.

ax·o·neme

(ak'sō-nēm)
1. The central thread running in the axis of the chromosome.
2. Synonym(s): axial filament.
3. The distinctive array of microtubules in the core of eukaryotic cilia and flagella comprising a central pair surrounded by a sheaf of nine doublet microtubules.
[axo- + G. nēma, a thread]

axoneme

the complex of MICROTUBULES and associated tubes found in the shaft of a CILIUM or FLAGELLUM.

axoneme

1. the central core of a cilium or flagellum, consisting of two central microtubules surrounded by nine peripheral microtubule pairs.
2. the gene-string or filament forming the basis of a chromosome.
References in periodicals archive ?
In some of these species, the concentrations of mercury that were effective on intact sperm had no effect on the axonemal apparatus of demembranated spermatozoa (Cosson et al.
Tektins are microtubule-associated cytoskeletal proteins essential for generating complex, long-range patterns of binding sites for axonemal components, such as nexins, radial spokes, and dynein arms (Norrander et al.
The ultrastructural analysis of the cilia with electronmicroscopy revealed ciliated cells appeared to be replaced by columnar cells lacking cilia and basal bodies, and bearing on their surface cilium-like projections without any internal axonemal structure.
Significant positive association has been reported between active smoking and sperm DNA fragmentation (80), as well as axonemal damage (81) and decreased sperm count (82).
Loss of some of the peripheral and/or central microtubules was commonly observed, in addition to normal axonemal configurations.
During spermatogenesis normally an indentation of the nucleus is formed in front of the axonemal basis, the so-called implantation fossa.
Electron microscopic analysis revealed the underdevelopment of both axonemal complexes and microtubule placement.
Axonemal dynein assembly and activity during ciliary/flagellar beating
73) Second, axonemal tubulins undergo several types of post-translational modifications, including acetylation of [alpha]-tubulin and polyglutamylation and polyglycylation of both [alpha]- and [beta]-tubulin.
As mitochondria are the major source of the ATP that helps in the movement of the sperm, the mitochondria produce ATP that diffuses downwards to the axonemal microtubules and their dynein arms.
Thus it seems remarkable, that the linyphiid spider Linyphia triangularis (Clerck, 1757) has an unusual 9 + 0 axonemal pattern (Alberti 1990); unfortunately until now there have been no other ultrastructural observations on Linyphiidae spermatozoa to know assess if this pattern is typical of this taxon.
The proven causes of isolated asthenospermia include artifactual asthenospermia, axonemal defects (immotile cilia syndrome), protein-carboxyl methylase (PCM) deficiency, anti-sperm antibody, necrospermia, and culture-proven infection (19).