Figure 1.

The protein profiles of CDKA;1, CDKB1;1 and CYCD3;1 after UV-B radiation. One-week-old Arabidopsis root tips were synchronized by hydroxyurea (2.5 mM) for 18 h and then washed by MS liquid medium, followed by UV-B treatment (0.45 W m⁻²) for indicated times. (There was little UV-A in UV-B treatment that cannot be filtered out, so the same level of UV-A was used as control). The protein profiles were detected by western blotting with CDKA;1-, CDKB1;1- and CYCD3;1-specific antibodies, respectively.