The image shown is of an endomitotic megakaryocyte. The megakaryocyte is a bone marrow cell that is a precursor for blood platelets. It is called a megakaryocyte because it has many nuclei and is very large. The cell was stained for nuclei (blue), phosphorylated histone H3 (green) and alpha tubulin (red).
The micrographs were collected in theMicroscopy Shared Resource using deconvolution microscopy by Amy Geddis of the Division of Hematology/Oncology, with assistance from Steve McMullen. Perspective views were rendered with the Volume Explorer program written by Mike Bailey of the San Diego Supercomputer Center.