Twin sea urchins

The juvenile pentaradial sea urchin forms inside the pluteus larva and then emerges during a metamorphosis process. Usually, the juvenile develops on the left side of the digestiv tract of the larva, but sometimes in very rare cases a second adult form inside the same larva. Here, two little juvenile can be seen on each side of a flatened digestiv tract. Both of them shown multiples muscular structure, the brightest being the future podia of the sea urchin.

Laurent Formery - LBDV

Système : Confocal
Type d'échantillon : formaldehyde fixed larva
Information sur le marquage : Blue: hoechst, red: serotonin, magenta: phalloidin, cyan: synaptotagmin
Information sur l'image : 1 pixels/micron
Contexte biologique : Caracterisation of larval nervous system of the sea urchin
Post-processing appliqué à l'image : Projection max en z, brightness and contrast modification