Definition of axoneme in English:
axoneme
noun ˈaksə(ʊ)niːmˈaksəˌnēm
Biology The central strand of a cilium or flagellum. It is composed of an array of microtubules, typically in nine pairs around two single central ones.
Example sentencesExamples
- Furthermore, isolated mutant axonemes lacking the central pair or radial spokes can vigorously beat in certain nonphysiological solutions.
- It brings us to another question, whether the neck region of a flagellar axoneme with a basal body could make some mechanical hindrance to microtubules sliding.
- In most cases, this was confirmed by the observation of the flagellar axoneme in additional serial sections.
- These findings demonstrate for the first time that ODA complexes vary in their composition along the respiratory ciliary axoneme and the axoneme of the sperm tail, and that this composition also differs between these two cell types.
- There are nine paired microtubules per axoneme, and they are interconnected by dynein molecules, protruding at regular intervals like the legs of a millipede.
Derivatives
adjective
Biology The homology between axonemal and cytoplasmic dynein intermediate chains has suggested a similar cargo-binding function for the IC subunit of cytoplasmic dynein.
Example sentencesExamples
- The PCD phenotype results from axonemal abnormalities and dysfunction of motile cilia and flagella.
- A number of models have been proposed based on assumption of certain feedback mechanisms wherein local sliding between microtubules is regulated by the axonemal curvature.
- Though speculative, perhaps these heterodimeric motors walk along the seam of the doublet microtubules or interact optimally with the microtubule-associated proteins found on axonemal microtubules.
- Previous studies have revealed that axonemal microtubules showed oscillatory sliding under the condition where the free bending of axonemes was restricted by adhering them on glass surfaces.
Origin
Early 20th century: from Greek axōn 'axis' + nēma 'thread'.