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Image Title: Light micrographs of median longitudinal sections of root apical meristems (RAMs) from basal angiosperms, monocots, and eudicots
Image Credit: Jeffrey Welsh, State University of New York, James L. Seago, State University of New York
AJB Editor: Judy Jernstedt, University of California - Davis
Intended End User: Teacher, Student
License Details: BSA - Terms for Image Use
Copyright held by: Botanical Society of America
Date Created: 1/1/2008
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About the Image

Light micrographs of median longitudinal sections of root apical meristems (RAMs) from basal angiosperms, monocots, and eudicots are pictured, left to right: top, Magnolia grandiflora, Cabomba caroliniana, and Ranunculus muricatus; bottom, Clivia miniata, Commelina communis, and Quercus rubra. This project, to characterize the arrangement of patterns of cells in the organization of angiosperm RAMs, was conceived by Heimsch in the early 1950s; the specimens in this montage of root tips were produced from 1956 until 2003 and were photographed with brightfield illumination on a Zeiss Axiophot microscope (University of Waterloo).

For further details, see: Heimsch and Seago, Organization of the root apical meristem in angiosperms, American Journal of Botany, Volume 95, Issue 1, pages 1-26, http://www.amjbot.org/cgi/content/short/95/1/1.

National Science Foundation  Development Supported by the National Science Foundation