ONLINE IMAGE COLLECTION

Click on Image for JPG rendition
Image Title: Computer-generated reconstruction from serial ultrathin sections showing the distribution of plastids within the egg cells of two genotypes of alfalfa
Image Credit: H. Lloyd Mogensen, Northern Arizona University
AJB Editor: Karl Niklas, Cornell University
Intended End User: Teacher, Student
License Details: BSA - Terms for Image Use
For Larger Version (click here)

About the Image

Computer-generated reconstruction from serial ultrathin sections showing the distribution of plastids within the egg cells of two genotypes of alfalfa. In the egg on the left, plastids (green) are positioned mostly below (toward the micropyle) the midtransverse region of the nucleus (blue) which results in the female plastids being largely sequested within the basal cell of the two-celled proembryo and not inherited. In the cell on the right, the plastids are perinuclear, thus, many female plastids become included in the apical cell of the two-celled proembryo and are inherited.

Link to the AJB Abstract for the article:

The hows and whys of cytoplasmic onheritance in seed plants

National Science Foundation  Development Supported by the National Science Foundation