Mark Q. Martindale Images

The Martindale Lab works with these fascinating animals.

  • euprymna_adult euprymna_adult
  • acoel acoel
  • nematostella1 nematostella1
  • Browny Browny
  • Before_1 Before_1
  • stella_layden stella_layden
  • lateral_actinotroch lateral_actinotroch
  • Nematostella_development Nematostella_development
  • jellyfish from Mark’s Lab jellyfish from Mark’s Lab
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PAR-3 and LGL become asymmetrically localized during the early development of Nematostella vectensis.

Untitled-1 Untitled2 Untitled Image 2_001

“Upside Down Jellyfish” (called Cassiopea) is being used as a new model for symbiosis and coral bleaching.

jellyfish from Mark's Lab

Confocal micrograph of  lateral view of a juvenile Florida Beroe ovata ctenophore stained for
filamentous actin (green).  The apical organ is located at the top of the image and the four
tracks of ciliated grooves descend to the tops of the four comb rows seen in this image.
Also shown are the complex pattern of muscle cells that run just under the surface of the
epidermis.  Image taken by David Kainoa Simmons here at the Whitney Marine Lab.

florida ctenophore Beroe - 600x571

 

Confocal micrograph of  lateral view of a juvenile Florida Beroe ovata ctenophore stained for
filamentous actin (green).  The apical organ is located at the top of the image and the four comb
rows seen in this image are linked by a complex pattern of muscle cells that run deep under the
surface of the epidermis.  Image taken by David Kainoa Simmons here at the Whitney Marine Lab.

florida ctenophore Beroe - 2 - 600x571

 

Confocal micrograph of a tentacle of a juvenile Florida Pleurobrachia ctenophore stained for
filamentous actin (green) and neurons (red).  Nuclei are labeled blue. The tentacle runs from
upper right to lower left and contains tentacular nerves and the “sticky” colloblast cells
(small green ‘grapes’ with blue nuclei in the center) that attach to prey items.  A small branch
of the tentacle can also be seen running vertically on the left side of the image.  Under the
tentacle is the surface of the animal with its chickenwire-like nerve net (red).   Image taken
by David Kainoa Simmons here at the Whitney Marine Lab.

FLorida Pleurobrachia tentacle - 600x601

 

Confocal micrograph of the polar field region of the apical organ of the Florida ctenophore
Pleuobrachia. Nuclei are shown in blue and neural elements in red both within, and under the
surrounding epidermis (anti tyrosine tubulin). Image taken by David Kainoa Simmons here at
the Whitney Marine Lab.

apical polar field of the florida ctenophore Beroe - 600x595