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 ?
1996) Calcium-dependent bidirectional power stroke of the dynein arms in sea urchin sperm axonemes.
The centriole (c) lies posterior to the nucleus, and the axoneme (ax) emerges from it.
It is strongly elongated and turns several times around the axoneme (Fig.
Electron microscopy led to the discovery of the 9-plus-2 arrangement of internal fibrils in the cilia and the subsidiary components of the axoneme, which lent support to the "sliding fibril" hypothesis of ciliary bending.
Of these, the loss of an axoneme in the sperm's tail (male) and the loss of cilia on hexacanths and tails on plerocercoids (larval) occur more than once.
The spermatozoon flagellum is divided into four distinct segments: the connecting, middle, principal, and end pieces, and it is composed of four major structural components: the axoneme that spans the whole length of the flagellum, the outer dense fibers surrounding the axoneme in the middle and principal pieces, the mitochondrial sheath located in the middle piece surrounding the outer dense fibers and axoneme, and the fibrous sheath in the principal piece (Inaba, 2011).
Sub-cellularly; INPP5E protein is localized in cytoplasm, cytoskeleton, cilium axoneme and Golgi apparatus.
The axoneme is the key component of the cytoskeleton and has characteristic nine plus two arrays of microtubules.
As for the detailed ultrastructure of flagella and cilia, the present image of a so-called "9+2" structure of the flagellar and ciliary axoneme was first revealed in 1959 by Afzelius, who described "arms" and "spokes" attaching to the outer doublet microtubules and also proposed a numbering system for the outer doublets (5) (See Fig.
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.