Nodal Cilia Movie

Embryology - 10 Dec 2023 Expand to Translate
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<html5media height="280" width="340">File:Nodal_cilia_001.mp4</html5media>

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Cilia rotation an the mouse embryo (E 8.0) primitive node

The direction of cilia rotation was clockwise.

A - Trace of node cilia in enhanced DIC images after background subtraction. Positions of root are indicated in black, and tip in blue, green, and orange. Most cilia have a pattern consistent with the projection of a tilted cone (blue and green, see text) whereas some cilia move in a D-shape (orange). A, P, L, and R refer to anterior, posterior, left, and right sides of the node, respectively. The direction of cilia rotation was clockwise (arrows).
B - Relationship between essentially rotatory movement of cilia and their projected images at various tilt angles.

Links: MP4 version | Mouse Development | Gastrulation

A - Trace of node cilia in enhanced DIC images after background subtraction. Positions of root are indicated in black, and tip in blue, green, and orange. Most cilia have a pattern consistent with the projection of a tilted cone (blue and green, see text) whereas some cilia move in a D-shape (orange). A, P, L, and R refer to anterior, posterior, left, and right sides of the node, respectively. The direction of cilia rotation was clockwise (arrows).
B - Relationship between essentially rotatory movement of cilia and their projected images at various tilt angles.

Note that in the mouse this occurs during week 1, in humans this occurs week 2 to 3 around gastrulation.

Cilium cartoon

Reference

Nonaka S, Yoshiba S, Watanabe D, Ikeuchi S, Goto T, Marshall WF & Hamada H. (2005). De novo formation of left-right asymmetry by posterior tilt of nodal cilia. PLoS Biol. , 3, e268. PMID: 16035921 DOI.

Copyright

© 2005 Nonaka et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Video 1

Cite this page: Hill, M.A. (2023, December 10) Embryology Nodal Cilia Movie. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Nodal_Cilia_Movie

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