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Contact: Josh Chamot
jchamot@nsf.gov
703-292-7730
National Science Foundation
Caption: Both lignin and cellulose are found in the rigid cell walls of the xylem cells (those that conduct water) in the primitive plant, Selaginella.
Credit: Zina Deretsky, National Science Foundation; Selaginella cross section SEM by Jing-Ke Weng, Clint Chapple, Purdue University; Lignin structure from Wout Bergjan, John Ralph, Marie Baucher (Annual Review of Plant Biology, Vol. 54:519-546, June 2003); Cellulose structure from http://www.chusa.jussieu.fr/disc/bio_cell/
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