People in my lab use phloroglucinol reagent and Maule reagent to stain
lignin in root cross-sections. See Sibout et al., Plant Cell 17:2059
(2005).
--
G. Esteban Fernandez, Ph.D.
Associate Director
Molecular Cytology Core Facility
University of Missouri
120 Bond Life Sciences Center
Columbia, MO 65211
http://www.biotech.missouri.edu/mcc
(573)882-4895
(573)884-9676 fax