Figure 4.
UV-B Light Sensitivities of rev3-2 and rev3-3 Mutants Generated by T-DNA Insertion.
(A) Disruption of AtREV3 by T-DNA insertion. Black rectangles represent 22 exons of the AtREV3 gene. The T-DNA is inserted in the 13th exon in rev3-2 and at the border of the 14th intron and the 15th exon in rev3-3.
(B) UV light sensitivities of rev3-1, rev3-2, rev3-3, and rev3-1/rev3-3 seedlings. Seedlings were exposed to 2 kJ m−2 UV-B light and then incubated under continuous white light for 3 days. Root growth is expressed as a percentage of the average length of nonirradiated roots ± sd.