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 ?
Alcohol stimulates ciliary motility of isolated airway axonemes through a nitric oxide, cyclase, and cyclic nucleotide-dependent kinase mechanism.
1996) Calcium-dependent bidirectional power stroke of the dynein arms in sea urchin sperm axonemes.
N = nucleus, ax = tail axonemes, c = centriolar region, mt = microtubules.
Arrest of sperm motility is probably due to the chain of reactions induced by reactive oxygen species which can affect sperm axoneme function (48).
In general, flagella and cilia of eukaryotes show an axoneme composed of a 9 + 2 microtubular pattern.
5) The experimental evidence was obtained by electron microscopical observation of the tips of the mussel gill cilia beating metachronally (24) and more directly by observing the extrusion of doublet microtubules from the trypsin-treated demembranated axonemes of sea urchin spermatozoa on the addition of ATP.
the structure [the 9+"1" pattern of Trepaxonemata], the number of axonemes, the number of mitochondria, and the spiralled or parallel disposition of cortical microtubules), have been utilized for the estimation of phylogenies based only on these characters (Euzet et al.
6 [micro]m (mean [+ or -] standard deviation, n = 10) that were generated from the base to the tip of axonemes (i.
The ciliary axonemes of ampullary neurons in caenogastropods show differences from the 9+2 pattern (Uthe, 1995; Page and Parries, 2000).
In the coeloblastulae and amphiblastulae of calcareous sponges, however, the axonemes are probably shed soon after settlement (Amano and Hori, 1993).
A monoclonal antibody to acetylated [alpha] -tubulin (Sigma Chemicals) at 1:100 dilution for 1 h was used to selectively label sperm axonemes.
The cilia of the infundibular cells have two nearly parallel striated rooflets and appear to have reduced axonemes that do no t project above the level of the microvilli (Fig.