Volume 4 Issue 4, April 2009

Differential interference contrast images of stained Arabidopsis roots expressing an auxin responsive promoter fusion driving reporter expression. Image is from the protocol by Lewis and Muday on p. 437. Photographs were taken by Charles Buer and are reprinted with permission from Plant Cell (http://www.plantcell.org), copyright American Society of Plant Biologists, Plant Cell 16, 1191–1205 (2004).