. 2016 Aug 23;16(1):28. doi: 10.1186/s12861-016-0128-7

Additional file 2: Movie 1.

Archenteron cilia are motile. Real-time movie of early to mid gastrula stage embryo in lateral-vegetal view reveals fast movement of polarized cilia on laterally invaginating cells at the posterior aspect of the archenteron (cf. Fig. 1h). Bright-field movie (a) and high-magnification (white box) of the inner archenteron wall (a’). (b) Temporal difference imaging rendered version of the same movie, which highlights pixel grey value differences between two consecutive frames. Movie was acquired at 55fps (cf. methods for details). (AVI 8410 kb)